Formula fertilization can not ignore farmyard manure

First, the meaning of formula fertilization

Formulated fertilization is based on crop fertilizer requirements, soil fertility performance and fertilizer effect. Based on the application of farmyard manure, the appropriate amount and proportion of nitrogen, phosphorus, potassium fertilizer and trace elements are proposed. And the corresponding fertilization techniques. It can also be said that formula fertilization is to adjust the supply and demand balance of nutrients required for soil fertilization and crops through fertilization, to find the optimal dosage and suitable ratio, and to be scientific, rational, quantitative, and time-oriented.

Second, the active ingredients of farmyard manure (organic fertilizer)

At present, the amount of nitrogen, phosphorus and potassium used in formula fertilization refers to the amount of chemical fertilizer, and generally does not include the amount of farmyard fertilizer applied. However, in order to properly reduce the amount of chemical fertilizer. It is necessary to refer to the formulation for various crops. Now briefly introduced as follows:

Human urine contains N0.5-0.8%, P2O50.2-0.4%, K2O0.2-0.3%; pig manure contains N0.45%, P2O50-0.19%, K2O0.6%; horse manure contains N0.58%, P2O50.28%, K2O0.53%; burdock fertilizer contains N0.34%, P2O50.16%, K2O0.4%; sheep ring fertilizer contains N0.83%, P2O50.23%, K2O0.67%, compost contains N0. 4%-0.5%, P2O50.18-0.26%, K2O0.45-0.7%; high temperature compost contains N1.05-2%, P2O50.3-0.82%, K2O0.47-2.53%; cake fertilizer includes bean cake and rapeseed Cakes, peanut cakes, sesame cakes, etc. contain N1 - 7%. P2O50.3-3%, K2O1-2.5%.

Third, the content of nitrogen, phosphorus and potassium in farmer's fertilizer per ton

Human urine is equivalent to 25-40 kg of ammonium. 13-25 kg of superphosphate, 4-6 kg of potassium sulfate; pig excrement is equivalent to 17 kg of ammonium sulfate, 21 kg of superphosphate, 10 kg of potassium sulfate; cow feces equivalent to 16 kg of ammonium sulfate, 16 kg of superphosphate, 3 kg of potassium sulfate; Excrement is equivalent to 28kg of ammonium sulfate, 19kg of superphosphate, 5kg of potassium sulfate; sheep manure is equivalent to 3.3kg of ammonium sulfate, 31kg of superphosphate, 5kg of potassium sulfate, rabbit feces is equivalent to 86kg of ammonium sulfate, 150kg of superphosphate, potassium sulfate 20kg;

The pig manure is equivalent to 23kg of ammonium sulfate, 10kg of superphosphate and 8kg of potassium sulfate; the beef manure is equivalent to 17kg of ammonium sulfate, 10kg of superphosphate and 6kg of potassium sulfate; the common compost is equivalent to 20-25kg of ammonium sulfate. 11-16kg, potassium sulfate 9-11kg.

As can be seen above, farmyard manure is rich in nitrogen, phosphorus, potassium and a small amount of medium and trace elements. In recent years, Baoqing County has neglected the farmyard manure in the formula fertilization work, and only used chemical fertilizers to fertilize the soil. Not enumerated one by one. Therefore, formula fertilization is based on the application of farmyard manure, and the use of chemical fertilizers to supplement crops that require insufficient nutrients to ensure increased yield and quality. Therefore, it is necessary to actively increase the application of farmyard manure to maintain the potential of soil fertility, and at the same time is an important agricultural measure to increase crop yield and quality. (Yu Changhong)
Farmers' Friends of Riches
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