Proper use of compost
2022-09-10 12:04:51
The growth and development of vegetables requires a variety of nutrients. Most of the chemical fertilizers we usually buy contain only one element or two elements. For example, urea, ammonia, ammonium bicarbonate, etc. are very single nitrogen fertilizers. Potassium chloride is also very single. Potassium fertilizer, only a few compound fertilizers contain a variety of nutrients. In production, two or more kinds of fertilizers are often mixed and applied, which can reduce the number of fertilizations.
In the process of composting, pay attention to the following points: First, the physical properties of the fertilizer after mixing can not produce adverse changes, such as from granular to massive. Second, fertilizer nutrients should not be lost. The third is to improve the fertilizer effect.
Mixing between different chemical fertilizers 1. Mixing conditions: ammonium sulphate and superphosphate, ammonium sulphate and phosphate rock, urea and phosphate fertilizer, ammonium nitrate and potassium chloride. When they are mixed, they form a nitrogen, phosphorus and nitrogen-potassium compound fertilizer, which not only has no loss of nutrients, but also reduces the adverse effects of various fertilizers when applied alone and improves the fertilizer efficiency. For example, after mixing ammonium nitrate and potassium chloride, the deliquescence is small and has good. The physical properties are easy to apply. The application of ammonium sulfate and phosphate rock powder can increase the solubility of phosphate rock powder and improve the fertilizer efficiency of phosphate rock powder.
Second, it can be temporarily mixed but not for a long time: some fertilizers should be applied immediately after mixing, which will not cause adverse effects on vegetable crops. However, if mixed for a long time, it will cause the effective nutrient content to decrease and the physical properties to deteriorate. If calcium superphosphate and nitrate nitrogen fertilizer (ammonium nitrate, etc.) are mixed, it is more prone to deliquescence, and can also cause the gradual decomposition of nitrate nitrogen, resulting in nitrogen loss. When urea is mixed with potassium chloride, lime nitrogen and potassium chloride for a long period of time, it also increases the hygroscopicity and deteriorates the physical properties of the fertilizer.
Third, the situation can not be mixed: This type of fertilizer will cause nutrient loss and reduce fertilizer efficiency. If ammonium nitrogen fertilizer (ammonium nitrate, ammonium sulfate, etc.) is mixed with alkaline fertilizer (such as lime, steel slag phosphate, lime nitrogen or grass ash, etc.), it will cause nitrogen loss. If fast-acting phosphorus fertilizer such as superphosphate is mixed with alkaline fertilizer lime nitrogen, lime, steel slag phosphate, grass ash, etc., it will cause phosphate degradation and reduce the effective phosphorus content. The poorly soluble phosphate fertilizer is mixed with the alkaline fertilizer, making the phosphorus in the poorly soluble phosphate fertilizer more difficult for the crop to absorb and utilize. Mixing of organic fertilizers and chemical fertilizers 1. Mixing conditions: such as manure, compost and calcium, magnesium and phosphorus fertilizers, organic acids produced by fermentation of compost and compost can promote the decomposition of poorly soluble phosphorus. The combination of strontium, compost and superphosphate can reduce the contact of available phosphorus in the phosphate fertilizer with the soil and prevent the fixation of phosphorus by the soil. Acidic strong organic fertilizers, such as high-grade coke and alkaline fertilizers (such as lime, steel slag phosphate, lime nitrogen or grass ash, etc.), the alkaline in the alkaline fertilizer can neutralize the acidity of the charcoal. Mixing a small amount of superphosphate with human excrement can form diammonium phosphate, which reduces and prevents the loss of ammonia volatilization.
Second, it is not suitable to mix: some unfertilized manure, compost can not be mixed with nitrate fertilizer, otherwise it will easily produce denitrification, causing nitrogen loss. Fresh, organic matter containing a lot of fibrous matter, it is best not to mix with mineral fertilizers, should wait until it is decomposed and then mixed with mineral fertilizers, but there are exceptions, even if the decomposed human excrement should not be mixed with alkaline fertilizer. So as not to accelerate the evaporation of ammonia.
In the process of composting, pay attention to the following points: First, the physical properties of the fertilizer after mixing can not produce adverse changes, such as from granular to massive. Second, fertilizer nutrients should not be lost. The third is to improve the fertilizer effect.
Mixing between different chemical fertilizers 1. Mixing conditions: ammonium sulphate and superphosphate, ammonium sulphate and phosphate rock, urea and phosphate fertilizer, ammonium nitrate and potassium chloride. When they are mixed, they form a nitrogen, phosphorus and nitrogen-potassium compound fertilizer, which not only has no loss of nutrients, but also reduces the adverse effects of various fertilizers when applied alone and improves the fertilizer efficiency. For example, after mixing ammonium nitrate and potassium chloride, the deliquescence is small and has good. The physical properties are easy to apply. The application of ammonium sulfate and phosphate rock powder can increase the solubility of phosphate rock powder and improve the fertilizer efficiency of phosphate rock powder.
Second, it can be temporarily mixed but not for a long time: some fertilizers should be applied immediately after mixing, which will not cause adverse effects on vegetable crops. However, if mixed for a long time, it will cause the effective nutrient content to decrease and the physical properties to deteriorate. If calcium superphosphate and nitrate nitrogen fertilizer (ammonium nitrate, etc.) are mixed, it is more prone to deliquescence, and can also cause the gradual decomposition of nitrate nitrogen, resulting in nitrogen loss. When urea is mixed with potassium chloride, lime nitrogen and potassium chloride for a long period of time, it also increases the hygroscopicity and deteriorates the physical properties of the fertilizer.
Third, the situation can not be mixed: This type of fertilizer will cause nutrient loss and reduce fertilizer efficiency. If ammonium nitrogen fertilizer (ammonium nitrate, ammonium sulfate, etc.) is mixed with alkaline fertilizer (such as lime, steel slag phosphate, lime nitrogen or grass ash, etc.), it will cause nitrogen loss. If fast-acting phosphorus fertilizer such as superphosphate is mixed with alkaline fertilizer lime nitrogen, lime, steel slag phosphate, grass ash, etc., it will cause phosphate degradation and reduce the effective phosphorus content. The poorly soluble phosphate fertilizer is mixed with the alkaline fertilizer, making the phosphorus in the poorly soluble phosphate fertilizer more difficult for the crop to absorb and utilize. Mixing of organic fertilizers and chemical fertilizers 1. Mixing conditions: such as manure, compost and calcium, magnesium and phosphorus fertilizers, organic acids produced by fermentation of compost and compost can promote the decomposition of poorly soluble phosphorus. The combination of strontium, compost and superphosphate can reduce the contact of available phosphorus in the phosphate fertilizer with the soil and prevent the fixation of phosphorus by the soil. Acidic strong organic fertilizers, such as high-grade coke and alkaline fertilizers (such as lime, steel slag phosphate, lime nitrogen or grass ash, etc.), the alkaline in the alkaline fertilizer can neutralize the acidity of the charcoal. Mixing a small amount of superphosphate with human excrement can form diammonium phosphate, which reduces and prevents the loss of ammonia volatilization.
Second, it is not suitable to mix: some unfertilized manure, compost can not be mixed with nitrate fertilizer, otherwise it will easily produce denitrification, causing nitrogen loss. Fresh, organic matter containing a lot of fibrous matter, it is best not to mix with mineral fertilizers, should wait until it is decomposed and then mixed with mineral fertilizers, but there are exceptions, even if the decomposed human excrement should not be mixed with alkaline fertilizer. So as not to accelerate the evaporation of ammonia.
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