A kind of soybean optimization recommended fertilization method

Abstract

The invention discloses a method for optimizing and recommending fertilization of soybeans. The recommended fertilization method includes the following steps: Step 1) Determine the target yield of the soil according to the previous soybean yield level of the soil; Step 2) Determine the soil nutrient supply level and soybean fertilization yield response and agronomic efficiency; Step 3) Combine the target yield, yield Response, agronomic efficiency and soil nutrient supply level are calculated to obtain the recommended amount of nitrogen, phosphorus and potassium fertilization required for soybeans to obtain the target yield; step 4) fertilize the soil according to the recommended amount of fertilizer. The method is based on soil basic nutrient supply, soybean nutrient demand, fertilizer yield response and agronomic efficiency, and based on the principle of optimal nutrient management of nutrient synergistic optimization, while considering the balanced application of nutrients, a reasonable recommendation is finally given after simulation calculation Fertilizer rates can be applied without a soil test. This recommended fertilization method is not only suitable for my country's small farmers as the main business model, but also can achieve regional-scale fertilizer recommendation, which is an important way to increase soybean production and efficiency and improve its comparative advantage.

Description

technical field [0001] The invention relates to a method for optimizing and recommending fertilization of soybeans, which belongs to the field of agricultural resources and environment. Background technique [0002] my country is the origin of soybeans, with a history of 5,000 years of soybean cultivation. Soybeans are rich in plant protein and are often used to make various soy foods, extract soybean oil, brew soy sauce and extract protein. Bean dregs or meal can also be used as livestock and poultry feed. It is one of the important grain and oil crops in my country. However, my country is a major importer of soybeans, especially after China's accession to WTO, my country's soybean production and trade have been severely impacted. The reason is mainly because my country's soybean production technology is relatively backward and the cost input is relatively high, resulting in a significant decline in its comparative advantage. [0003] Among them, a large amount of fertili...

AI Technical Summary

Problems solved by technology

However, the practical problem is that soil testing and laboratory analysis are time-consuming, labor-intensive, and require a certain amount of financial investment. Influenced by the limitations of the test method, the soil nutrient test value cannot fully reflect the soil nutrient supply status

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