Special fertilizer for citrus orchard garden and method for applying fertilizer once or twice every year

Abstract

The invention discloses a special fertilizer for a citrus orchard garden, and method for applying the fertilizer once or twice every year. In the special fertilizer, the total weight of nitrogen, phosphorus and potassium in an organic fertilizer takes up about 60%. The organic fertilizer can ensure that soil forms a good granular structure, improve the water retention and fertilizer retention capability of soil so as to prolong the fertilizer effect, the organic fertilizer can also provide trace elements essential to the growth and development of various citruses, and the yield and quality of citruses can be improved; the times of fertilizer application can be reduced, the labor intensity and labor cost of farmers can be lowered, the fertilizer is applied from last ten day of June to the first ten day of July every year according to the method for applying fertilizer once, and the fertilizer application is conducted once yearly about one week before the end of second physiological fruit dropping period of citruses. According to the method for applying fertilizer twice, the urea in the special fertilizer is applied from the last ten day of January to the middle ten day of the February to complete the first-time fertilizer application; the fertilizer is applied from last ten day of June to the first ten day of July, and the application of fertilizer in the special fertilizer is conducted about one week before the end of second physiological fruit dropping period of citruses to complete the second-time fertilizer application.

Description

technical field [0001] The invention relates to the field of citrus planting, in particular to a special fertilizer for citrus orchards and a method for fertilizing once or twice a year. Background technique [0002] A large number of people working in rural areas have gone out, and many places have piled up land. The relative concentration of land, scale, specialization, modernization, and standardization are the inevitable trends in the development of agricultural modernization. However, my country's policy is that rural farmland is owned by collectives, and the land contract policy remains unchanged for 30 years. Therefore, farmland in rural areas is transferred and used for compensation at the voluntary condition of farmers. Modernization and standardization must rent farmers' land. Under the influence of the above factors, the production and management cost per unit area must be reduced. At the same time, with the development of science and technology, advanced technolo...

AI Technical Summary

Problems solved by technology

In this context, the citrus production in my country has the following problems: First, most of the citrus orchards in my country are located in mountainous and hilly areas, where the slope of the land is large, and the water and soil are easy to lose; It dissolves quickly in the soil. If it is applied too much at one time, it will not only damage the root system, but also cause the loss of nitrogen and potassium fertilizers and the fixation of phosphorus fertilizers by the soil, resulting in waste of fertilizers and eutrophication of rivers and lakes. Documents related to non-point source pollution violate the spirit

[0005] The multiple application of chemical fertilizers has the following disadvantages: First, it increases the labor intensity and labor costs of farmers. In the current shortage of migrant workers and the sharp rise in labor costs, this defect is becoming more and more obvious; second, fertilization at the end of May will promote summer harvest. shoots, causing contradictions between shoots and fruits, aggravating fruit drop, and affecting yield; third, although the amount of fertilization of pig urine and feces is large, it has a large water content, less organic matter, and insufficient active ingredients of nitrogen, phosphorus, and potassium, which cannot meet the needs of citrus production; It is the application of chemical fertilizers and the problems mentioned in the first natural paragraph of this background technology

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