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P and K cannot be "created" by man (except in nuclear reactors--at cost that would make it more valuable than gold.) P in modern fertilizer is mined from animal graveyards where bones have turned into phosphate rock. The phosphate rock can be powdered and used directly or transformed into various forms. Most K in nature is found in rocks- (it is radioactive with a half life of 1.5 B yrs by the way and responsible for most of the background radiation we all recieve--especiall if you live in a brick home). In manmade fertilizer, K comes from extraction of rocks with acids to obtain various salts of K. As I said earlier, the real downside of concentrated fertilizer is that it helps natural soil bacteria consume the organic matter that is there. In soil, when a plant dies, the C to N ratio is lower than what is needed to support bacteria, that N get used fairly rapidly leaving even lower C to N ratio--almost pure organic carbon. This material helps in soil drainage, aeration and maintains a healthy soil. The addition of fertilizer alone will speed up the degredation of the organic matter, it does not kill the bacteria, it provideds them with the nutrients to consume the carbon. If you do not add additional organic matter, the soil will become compacted and depending on soil type, low in minerals. However, if you continuously add organic matter, you can maintain a healthy soil and more productive plants. As for pesticides, I understand the concern for use of chemicals that we know little about, especially in a long term sense. We may know that there is low probability of acute toxicity, but how do we know there are not some long term negative effects like cancer or birth defects. But just because a pesticide was made by Mother Nature does not mean it is safe. The most toxic compounds know to man were made by Mother Nature. The best way to control pest is to maintain a healthy population of predatory insects. To do that I use pesticides very sparingly, and I only use pesticides that have very short half lives (some organic some manmade--mostly malathion and permethrins) and I limit application to problem areas to avoid killing beneficials. I often use soap--a manmade chemical--because it only kills what I put it on. |
Re: Oil and Water.(Conventional vs. Organic)
Found this and thought I'd share.
First, there's the environmental damage and impact on human health caused by chemical N-P-K fertilizers. Then, there's the problems of overuse. Excessive doses of some nutrients is a direct cause of other nutrient deficiencies. And there's the build-up of chemical Salts. Because these fertilizers are by definition SALTS. Everyone knows Salt is BAD for agriculture. On top of all this is the terrible toll that fertilizer manufacturing takes on the environment and the people who live near the factories. They pollute; they're dangerous. Remember the Bhopal fertilizer plant explosion in India in 1984? The Toulouse fertilizer plant explosion in France in 2001? On our own shores, the worst accident involving fertilizer took place in 1947 in Texas, when 600 people were killed and 3,500 people were injured; it was part of the testimony presented in July 2005 before the Senate Homeland Security Committee, which was studying national security risks: http://www.globalsecurity.org/securi...50713-poje.pdf Let's look first at the ingredients in a balanced fertilizer: N-P-K. N, Nitrogen, is the most common element in our atmosphere. It comes in different forms: Elemental N, NO3- (Nitrate), NO2 (Nitrite), NH4+ (ionized Ammonia), NH3+ (poisonous Ammonia gas) and others. Nitrogen is also an essential nutrient; all plants and animals need it to survive. It's essential to the Chlorophyll molecule. Too much, or the wrong kind of N, will damage or kill these organisms. news-service.stanford.edu/news/1998/august26/yaqui.html N is especially toxic to fish and invertebrates. It's also toxic to humans; people who depend on rural, private wells for their water source have one of the higher rates of a condition called Methemoglobinemia, aka Blue Baby Syndrome, which damages blood cells and is traced to high Nitrates. Articles in Science Magazine submitted by the International Nitrogen Initiative last May inspired 'Reactive Nitrogen: The Next Big Pollution Problem' on the Wired Science website. It describes a litany of problems and warns us, 'Nitrogen pollution could eventually render entire stretches of ocean dead, as is now the case in the Gulf of Mexico, where fertilizer runoff has created a 5,800 square mile dead zone.' Here's the URL: blog.wired.com/wiredscience/2008/05/reactive-nitrog.html More data appears in an essay posted by a company in New Jersey, Alpha Water Systems, titled 'Nitrate Pollution of Groundwater'. You can read it online: NITRATE POLLUTION OF GROUNDWATER None of this is new. It's just worse. And that's just the N. Unlike Nitrogen, Phosphorus and Potassium are immobile in Soil. Feldspars and Micas contain most of the Potassium in our Soil. K in fertilizers is almost always applied as Potassium Chloride from mines in Canada. K dissolves in Water. P does not. Instead, it binds to Soil particles and stays put until some nice microbe comes along and un-locks it. Clay Soils tend to keep the strongest grip on it; Sandy Soils are looser and let it drizzle through. Phosphate and Potash fertilizers don't just raise the chemical P and K levels; they also add damaging Soil Salts. And although most Soils in the U.S. have perfectly adequate levels of Phosphorus and Potassium, and even though they don't need any more from your fertilizer, people use them anyway. This is a problem because too much Phosphorus locks other nutrients OUT of plants. Iron and Zinc deficiencies are common in Soil over-loaded with non-dissolving P. A fatal disease in livestock called 'Grass Tetany' -- a complex condition linked to Mg deficiency in cows and other ruminants -- is examined by French author André Voisin: 'Excessive and repeated dressings of Potassium fertilizers cause Magnesium deficiencies in plants, particularly Grasses...' It's even bad for the animals that depend on them; they too develop Mg deficiency: 'GRASS TETANY' Chapter 6 Organic Phosphates provide energy for chemical reactions in plant and animal growth and cell reactions. But too much and you end up with growth out of control. When this happens in a lake, you find so much growing going on that they run out of Oxygen; you end up with a lot of dead plants and animals. Phosphate pollution is so bad in some areas, people are pushing for a 'Phosphate Fertilizer Act' to deal with it. Phosphorus would be legal only if a Soil Test showed it was needed; only if you were planting new Seed or installing new Sod; or if you're a licensed greenskeeper at a golf course. You can see how hard fertilizer companies would push to block this law. Their profits depend on getting people to use fertilizer ALL the time, not just when they need it. Making Phosphate fertilizer is no picnic, either. That's a big problem in Florida, where it's a billion dollar industry. Phosphate fertilizer contains radioactive lead and polonium. Mine the Phosphate and you end up with radioactive byproducts. As environmentalist George C. Glasser points out, 'Phosphate fertilizer manufacturing and mining are not environment friendly operations... People living near the fertilizer plants and mines, experience lung cancer and leukemia rates that are double the state average.' You can read his article, 'Fluoride and the Phosphate Connection', in the online Pure Water Gazette: Fluoride and the Phosphate Connection* by George C Potassium (K) is essential for plant growth. K is generally not considered an environmental problem; in parts of the world where high levels were recorded, industrial waste (and not fertilizer) was blamed. Plants absorb K very efficienty when it's dissolved in the water in your Soil. As with P, too much K in your Soil will chemically lock out other important micronutrients. Calcium and Magnesium are 2 elements upstaged by too much K in Soil. Now, we all know that Salt damages plants. A Chemical fertilizer is, technically, a Chemical Salt: an Ionic Compound. It can be produced by the reaction of an Acid and a Base; by combining a Cation (positively charged Ion) and an Anion (negative charged Ion) or a Metal and an Acid. A Salt gets its name from the Cation, followed by the name of the Anion. NaCl - Sodium Chloride, aka Table Salt, is a Sodium Cation bonded to a Chloride Anion. (NH4)2SO4 - Ammonium Sulfate, the preferred N fertilizer for Lawns and Golf Courses, is an Ammonium Cation and a Sulfate Anion. Ca(NO3)2 - Calcium Nitrate, a Calcium Cation and a Nitrate Anion. CO(NH2)2 is Urea, the most inexpensive Nitrogen fertilizer, made of Carbon Dioxide (CO2) and Anhydrous Ammonia (NH3) (Ammonia bonds directly with Acids to form 'Ammonium Salts'). That, in a very large nutshell, is the problem with chemical fertilizers. |
Re: Oil and Water.(Conventional vs. Organic)
I'm going to attempt to summarize the below information in as simple a way possible...
Do not apply too much fertilzer. Do not eat the fertilizer nor drink water that may contain runoff.. Did I hit?.. or miss? Although the info does not provide a solution to the proposed problem, it seems as if one tests their soil regularly and applies only what is needed...there will be no problem. |
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I agree wholeheartedly with you regarding the environmental consequences of excess fertilizers--it is what I spent a significant part of my career working on. However, even natural sources of fertilizer can be responsible for eutrophication--case in point--I remember a river in the Pacific NW where the source of the eutrophication was traced to salt spray from the ocean that acted as a cation exchange to release natural N in soils formed by N fixation in Aspens.
In the Gulf of Mexico, 70% of the excess N in the Mississippi River comes from the corn belt---much of the remainder comes from municipal inputs. As a scientist, I also think that much of the problem comes from removal of the consumers--In Chesapeake Bay in the 1600s, oysters filtered the entire volume of the bay in 3 to 4 days--now it takes 300-400 days. I also agree with the damage caused by mining (all mining), but we just need to make the mine companies put up the money for restoration before they do the mining--the mines can be restored --it just takes money. Last, the argument about salt killing microbes is highly overstated. It is not the presence of salt, it is the concentration of salt. All animals, plants and microbe require salt, but when the concentration inside or outside is too high, it can be lethal. There are many differences in requirements depending on the soil and environmental or climatic conditions. We have very sandy soil with very low natural nutrient/mineral levels. There are several plants that won't grow here due to salt (IN THE AIR). Our high rainfall (5 to 6 ft a yr) washes out salts and nutrients. Addition of organic matter helps retain nutrients and add trace minerals, but unless you have a farm lot full of animals, it is almost impossible to maintain a productive healthy garden without frequent additions of commercial fertilizers. |
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All of the fertilizer samples in the image below contain chemicals: some non-synthetic, some synthetic.
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So for the most part you two agree with what this person posted?
SBL, when you say " it is almost impossible to maintain a productive healthy garden without frequent additions of commercial fertilizers." are you 1, referring to the sandy soil in your area, and 2, what is your definition of "comercial fertilizers"? Are you in this specific post talking about chemical ferts or anything packaged and sold at a profit that feeds the plants including organic (non chemical and non synthesized) plant food. Richard, I see you quoted me and want to make clear that is not my writing, it's something I found while surfing. |
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[/quote] SBL, when you say " it is almost impossible to maintain a productive healthy garden without frequent additions of commercial fertilizers." are you 1, referring to the sandy soil in your area, and 2, what is your definition of "comercial fertilizers"? Are you in this specific post talking about chemical ferts or anything packaged and sold at a profit that feeds the plants including organic (non chemical and non synthesized) plant food.[/quote] I am talking about our sandy soil as that is what I know about. The commercial fertilizers I am talking about are typical granular fertilizer used on farms. Various NPK ratios depending on the plants and needs--including things like Ammonium sulfate, ammonium nitrate, urea, diammonium phosphate, potassium nitrate. The truth is if organic fertilizers like cottonseed meal were as cheap as available and as effective I would use them--I don't have anything against them, but I would have to drive 50 mile to get such materials in addition to the fact that they cost more and work more slowly. The most effective organic material I get is my neighbors grass clippings--once composted it is about as good as manure. |
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You're going to end up providing unneeded chemicals to your plants by using only organic materials since you can't pick and choose the exact nutrient you want to use. With "chemical" fertilizers you can provide exactly what is needed. |
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As for the environmental consequences of excess nutrients, much of the problem could be reduced by better land management--buffer zones to absorb runoff, retention areas and reduced application rates. Many corn farmers over apply fertilizer for that 1 yr in 5 when the have sufficient rainfall to use the extra fertilizer.
As Turtile said P from intensive animal farms (hogs, chickens and cows) is as much of the problem as row crops. However, I still think that in coastal waters, overfishing is as much of the problem as nutrient input. |
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As for the info momoese posted... I think I summed it up about right. Sure I dumbed it down, but in essence, it seems as though mismanagement of nutrients is the main problem in that example. |
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So SBL, let me be clear here. You are trying to tell me and everyone else that at some point we are going to have to apply chemical fert in order to grow our gardens? If that's really what your trying to say which I think it is I have one word for you, hogwash! My garden is as nice as anyone else's and produces as much fruit with zero point zero chemical fert added, never have and never will. My garden is all natural and organic with no synthentic or chemical fert, pesticides, or herbicides. The organic garden where some of my pups came from has been organic for 30 some years, it looks and grows awesome with no chemical or synthentic anything added. They use fish scraps and plant matter, that's all!
If faced with driving 50 miles and paying double for organic material to feed my garden that's exactly what I would do! As a matter of fact I just did not long ago to aquire some composted chicken manure from organic chickens. :) |
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The reason I ask is because I have several different types of fruit trees. I also grow veggies and have a few ornamentals. I have mangos, sapodillas, bananas, jaboticabas, atemoya, avocado, lime, orange, fig, cacao, black pepper, papaya, and I also grow veggies according to season. The ornamentals I have are purple queen, birds of paradise, hibiscus, and another tree I don't know the name of. If you can give me recommendations for all, that are also cost friendly of course, I would appreciate it. All of the above mentioned trees have their own set of requirements. How could I possibly meet all of those different trees needs by organic means without spending an arm and a leg? You mention you don't mind driving 50 miles and spending twice as much.. but some people don't have the option. I personally can afford it, but prefer to spend my extra money on travel and entertainment...most other things, I can best be described as "camino con los codos".. Lorax should be able to translate. :) |
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Come to think of it, the requirements for each of my trees are according to my specific area. So, logic dictates that one would need something far different in another part of the country as opposed to here in Miami, FL. There is no one solution no matter what your beliefs.
If I understand correctly, my soil should be similar to sbl's(judging by his comments)...just not the climate. I doubt our soil is the same as in say...southern California |
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Mitchell,
You have every right to be proud of your garden and fruit production -- I have been envious of your fruit on more than one occasion. But to say your garden is chemical free propagates a lot of misunderstanding. It furthers the marketing goals of those who wish to cast "chemical" as a negative term. Fact is, we would all be in bad shape without the chemical oxygen. The worm castings in your garden are about 1% nitrates, 0.5% phosphates, and 0.5% potash, plus about another 0.1% minors and micros by weight. These chemical salts are manufactured for you by your wild and untamed worms! Beer is every bit as synthetic as water soluble fertilizers -- it even contains a surfactant. If you use beer to control slugs and snails in your garden then you are using a synthetic pesticide. |
Re: Oil and Water.(Conventional vs. Organic)
I grow mostly desert bananas, canna, ginger, tanglad, Ti, heliconia, plumeria, blueberry, strawberry, mango, citrus, babaco, passion fruit, tomato, lettuce, bamboo, palm, night blooming jasmine, hot peppers, giant bird of paradise, geranium, many types of succulents, aloe, agave, lawn for the dogs to play, weeds (they like it here too), many herbs, pineapples, kangaroo paw, yucca, puya, and soon kei apple. I'm sure I missed a bunch of things but you get the point. The acid loving plants receive some coffee grounds, otherwise they all find what they need from the soil. No problems with insects, they eat and get eaten by others, and few holes in my lettuce doesn't scare me.
I'm perfectly happy with the results and as the saying goes, if it aint broke don't fix it. |
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I've found Pepsi cans from the 70's, wooden fence posts, chain fence posts, orange construction netting, glass beer bottles, shoes, milk jugs, roof tiles and other construction materials, a leather glove, a sock, rope, and a ton of small budweiser beer cans in my yard while digging holes for my trees and veggie garden. My point is that "organic" practices have best results in places with rich soil to begin with. What about those in nutrient defficient soils? Jaboticaba is native to Brazil while Figs are from the Mediterranean, yet they are both growing in my yard. The Jaboticaba has far more nutrient needs here than most figs for obvious reasons. So, how could I meet the nutrient demand for my different trees without resorting to a convenient, cheap fertilizer? |
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My point is that I do my best to keep it free of toxic chemicals and anything synthetic and the results have been satisfactory. BTW, I'll take the Oxygen, you can have the Dioxin. ;) |
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One of the things I like about growing organic the way I do is that I never have to break out a calculator to avoid burning the plants with chemical ferts. I could grow bananas right in my compost pile just fine, and if I spill a whole 5 gallon bucket of compost tea on a plant no biggie! |
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But i live in a wash area were the soil is 80% gypsum and 15% calcium with 5% non specific micro nutrients. I have done every thing in my power to provide a complex and beneficial organic life to my soil. In the end its poor soil to keep much of any thing in place long enough to benefit the plants. So i must resort to additions to my practices which is what we should be talking about "practices Not Additives". Its in how you use your tools that makes the biggest difference to how your soil reacts to thees chemicals. there all the same more of less if they are pure. i understand the out rage to the commercial farm industries Practices of using 10 times the Fertilizers. Most home gardeners don't fall in to that kind of meager mismanagement of soil resources. Ultimately if one looks a farm practices in the last 10 year you would see that farmers are moving away from some of the bad ways and on to new more innovative management. I understand that they have a long way to go before one could in any stretch of the imagination call them sustainable. but I'm sure with time they will move to better ways. Besides ultimately they will have to change! we simply do not have the remaining resources to maintain these damaging and wasteful farming strategies. I don't want to change the subject. but what we need to be focusing on is how are we going to feed the Peoples of this world on organic Techniques. i don't see at this point how that will be possible. i believe one of the meager reasons we have moved forward technically and culturally is that was have not had to struggle to feed are selves. what if that changes? what then? how will we care for are plaint if its vary life is being sucked away by massive over population. i don't care what subject you are talking about in are modern life its aways comes back to this one topic "Over Population" this is the stresser, the catalyst if you were for many of bad things that have happened war famine plague they all come back to this! |
Re: Oil and Water.(Conventional vs. Organic)
Clay soil is very rich in minerals and retains nutrients much better than our sand, This sandy soil is almost the same as pure sandbox sand--no color, no minerals and no capacity to retain nutrients. Organic material aded to the soil, --say 3-4 inches of compost is gone in a yr due to our heat humidity and rainfall--over 5ft on a dry yr and almost 7 ft in some years. It is difficult to maintain a balance of any kind with that kind of leaching. I do not have to worry about burning--I have to add a small amount frequently. I use about 5 pounds a yr of trace mineral mix containing a wide variety of chemical salts, of Iron, Copper, Zinc, Boron, Magnesium, Manganese, and Sulfur. I have a compost pile that is about 4 x 4 x 8 ft--I go through that entire pile in about 6 months adding 2-3 wheelbarrow loads a week.
BTW, I grow tomatoes (no blossom end rot), peppers, eggplant, beans, peas, okra, lettuce, onions, cabbage, broccoli, herbs (dill, thyme, basil, cilantro), snow peas, turnips, kale, mustard greens, and ginger all in an area about 25 x 30 ft. As for fruit trees, I have 7 citrus trees, bananas, peaches, pineapples, pears, pecans, avocados, and figs. Ornamentals--too many to mention. Edit:I forgot about my blueberries. |
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SBL. if you were to truck in a mass amount of clay to mix with your sand what would happen?
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My problem is not about using or not using organic/inorganic production methods and pesticides. MY PROBLEM is with the clueless hypocrites who have found religion through organics and have no idea they should be thanking technology in agriculture on a daily basis for every modern convenience they use on a daily basis. What if Einstein, Ford and the Wright brothers had to spend every day working their own garden just to survive on a daily basis rather than have time to create their inventions. Well we would be using oil lamps, the whales would be extinct*, and we would be riding horses. * If you think whales are an endangered today, do some research on the kerosene lamp. Prior to the advent of kerosene and kerosene lamp, the fuel of choice was whale oil. The change over from an organic source of oil to a 'synthetic' source exponentially reduced the systematic killing of these creatures. |
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Back to growing for me...........enough! |
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Btw, take at easy with all that bold text, Richard may become skeptical of your writings. |
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"Found Religion through organics?...........did you really go there?:( I'm not going to dignify this behavior here any longer in what has previously been and remains to be a place for banana growers to compare notes and help each other out despite our personal differences for the love of the hobby we should celebrate sharing. It doesn't sound at all as if you have been encouraged to do that.:basketbalhooplnaner As of now maybe I'd like to swap notes in a separate forum for the like minded so we can all go back to getting along. There will be no more response from me here. Your's truly , that silly whale killing , and clueless hypocrite Bob |
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Yeah, I did get carried away on my bold text. Do you think three words is excessive? Have a good day but did I really mean it. I have to get back to writing my lesson plans for my little miscreants that will be showing up on Monday. LOL Oh and Bob, Unless you have been following and reading all 80 posts, which I know is probably very difficult to see and do from your perch on that flagpole, it is understandable how you can be so ignorant as to my comments. |
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To me it means repeatable productivity of healthy plants. If I tried to grow plants on the soil that was here when the white man first got here without any additions, most plants would produce little or nothing in this sand--if they survived at all. Native plants here are sea oats and prickley pear cactus. Addition of natural available organic material (pine straw and live oak leaves) would help some but they are very poor in nutrients. With the addition of lawn grass clippings (fed chemical fertilizers) I can do much better, but still not as good as the same additions with commercial fertilizers and minerals--to me that is improving the soil---how do you think it has hurt the soil? |
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SBL suggested that clay holds nutrients better so I thought that was what we were talking about, not the water retention of that product. Maybe you just wanted to post the name for more Google hits? Is this something you plan to sell or maybe already are? Quote:
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Previous thread: http://www.bananas.org/f312/organic-...izer-7785.html Here's a great quote from our friend organicbananac...probably the perfect example of what TX is upset about.. Quote:
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Eventhough we have lots of rain we do need to enhance water retention--it can rain 6 inches here in a day and the garden needs watering 3 to 4 days later. |
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You live near an ocean use seaweed; heavy mulching I would think helps prevent erosion so does the roots of plants.
The soil here is weird; heavy clay with little organic matter and little sand yet it drains very well. But it'll turn to a brick during the summer without proper mulching. Also wouldn't adding clay to sand or vice versa simply create an adobe when it drys? |
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Permaculturekidd, Your arguments are valid when talking about the fertile soils in the amazon...other than that...I think your point is lost. However, that is my opinion and I am in no way an expert. |
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We don't get much seaweed on the beach here-- some years there is a big raft of sargasum that washes ashore, but other than that 1 in 10 yr event the beaches here are pure sand with a few shells.
Mario is right about the mulch-- I do mulch most of my garden and trees--except citrus--they have bare ground under them after I lost several to root rot from mulching. But mulch alone will not supply the nutrition needed for most plants. My blueberries are a good example of the problem here--my blueberries have a thick layer of mulch--at least 6 inches and I apply a new layer of several inches a yr. I also apply a little ammonium sulfate at bloom time and normally again in June (about 2 oz per tree) . This yr I ran out before I could make the June application--Ace Hardware was out as well, so I was not able to make the June application before the mid season growth spurt--the new growth is very yellow--the mulch has lost all of it's nutritional value. |
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