The author discovered in the countryside in recent years that there are problems in the purchase and application of fertilizers by peasant households who are unaware of the correct purchase and use of chemical fertilizers. It is recommended that farmers should pay attention to applying scientific and rational fertilizers in the following aspects:
The first is to increase the ability to identify the authenticity of fertilizers when purchasing chemical fertilizers. Through the "see, smell, burn, dissolve" and other simple methods to identify the authenticity of fertilizer. For example, "see" is to see whether the product identity is in line with the norms, to see the nutrient content of fertilizers, to see whether the manufacturer is a legitimate production enterprise; "smell" is that most fertilizers have a specific smell, and they know if they are inferior products by smelling the fertilizer. In addition can also be identified by burning, melting and other methods.
The second is to buy fertilizer to calculate the economic account. Fertilizer varieties on the market today are "many, chaotic, and miscellaneous." When buying fertilizers, it is not only cheaper to calculate fertilizers, but it is necessary to calculate economic accounts based on nutrient content. For example, the market for diammonium phosphate currently sold in our city is 64% (N-P2O5 is 18-46), and 57% (N-P2O5 is 15-24). Therefore, it is not only necessary to look at the price when purchasing fertilizer, but to calculate whether the price of pure nutrients is higher. (kg price / nutrient content = pure nutrient price)
The third is to master the application method. At present, there are some blended fertilizers containing urea or urea-based compound fertilizers on the market. They contain certain “biuret†during the conversion of the soil into crops or during the production process. The biuret affects the seed germination and emergence process. It will cause "deficient seedlings". Therefore, when applied, acupuncture should not be applied to separate the seed fertilizer.
The fourth is to grasp the amount of use. At present, many simple seed drills generally use more than 7.5-10 kilograms of fertilizer per mu, while slow-release fertilizers (also known as controlled-release fertilizers) use one-time base fertilizer, and the amount of fertilizer applied per mu is more than 30-40 kg. There may be insufficient fertilization, resulting in later defermentation, or even a reduction in yield, which will result in losses for farmers. Therefore, it is recommended that the farmers grasp the amount of fertilization according to the type and characteristics of the fertilizer.
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