Precautions for applying micro-fertilizer

The normal growth and development of crops requires a variety of trace elements, and the lack of which one will affect the normal development and growth of crops, severely lacking, and even death. Various elements are important for crop growth and cannot be substituted for each Other. After increasing the application of nitrogen, phosphorus and potassium fertilizers in the field, it is necessary to pay attention to the physiological manifestations of crops and timely determine the deficiency of crops. Only a small amount of trace elements can meet the needs of normal crop growth. However, the critical range of various trace elements from lack to excess is small. A slight deficiency or excess can cause serious damage to crops. Therefore, the application of trace element fertilizers should be very careful, should pay attention to the following points: Do not over-spray micro-fertilizer solution or spread micro-fertilizer particles, be uniform, and avoid repeated application; the concentration should not be higher than the specified concentration, if high concentration is required , not exceeding 20% ​​of the specified concentration. Adding organic fertilizers and applying organic fertilizers have three advantages for micro-fertilizers: one is to increase the organic acid of the soil, so that the trace elements are available; the second is to reduce the toxicity of micro-fertilizer when the micro-fertilizer is excessive; the third is organic fertilizer There are a large number of trace elements in their own variety. Combined with a large amount of elemental fertilizer, the micro-fertilizer must exhibit obvious effects of promoting ripening and yielding under important conditions such as nitrogen, phosphorus and potassium. If the trace elements are sufficient, and a large number of elements remain constant, a large number of elements will become The limiting factor for prospering and increasing production. The application of micro-fertilizer field crops in a targeted manner is generally less prone to micronutrient deficiencies under conditions of reasonable rotation and fertilizer application. Therefore, the application of micro-fertilizers should be targeted and should be applied to crops due to crops. For perennial plants (fruit trees, etc.) and for many years of continuous plots (protected vegetables, etc.). Pay attention to the performance of the deficiency. In a region, the abundance of an element must be determined through analysis and experimentation, so that the targeted micro-fertilization can be applied in a targeted manner to achieve the purpose of promoting ripening and increasing yield.

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