Fertilization method under the condition of drip irrigation under film film

Abstract

The invention discloses a fertilization method under the condition of drip irrigation cultivation under corn film, which belongs to the field of agricultural planting technology. The method is: mechanical fertilization, the fertilizer applicator is set with three fertilization ports, three rows of fertilizer are applied on each large ridge, and the middle row of fertilizer is applied to the ridge In the middle, the distance between the fertilization openings on the outermost two sides is 50-55cm; apply 60% fertilizer in the middle, and 20% fertilizer on each side; apply 15-17cm deep in the middle, and 8-10cm deep on both sides place. The beneficial effects are as follows: 1. Cross-layer fertilization. In the early stage of corn growth, its root system is short and can absorb shallow fertilizer, while in the middle and late stages of corn growth, its root system is longer and can absorb deep fertilizer; 2. Fertilize on both sides. There are fertilizers on both sides of the corn plant, and the closest distance to the fertilization belt is 5cm, which fully exerts the absorption of the fertilizer by the whole plant and improves the utilization rate of the fertilizer; 3. Fertilize on demand. Corn needs more fertilizer at the jointing and booting stage. At this time, the root system is longer and can absorb deep-level fertilizers, and the deep-level fertilizers account for a large proportion, which can just meet the needs of corn for fertilizers.

Description

technical field [0001] The invention belongs to the technical field of agricultural planting. Background technique [0002] Drip irrigation cultivation technology under mulch film is a brand-new cultivation technology. If the traditional method of fertilization is continued, it cannot meet the fertilizer demand of corn in each growth period. The specific performance is as follows: First, the traditional fertilization method (strip application) has the same fertilization depth. When the corn root system does not grow to the fertilization position, the corn cannot absorb the applied fertilizer. 10% of the required fertilizer), but it is not unnecessary, so the applied fertilizer cannot be absorbed at the time, thus affecting the growth of corn. The second is that in the traditional fertilization method, only one line of fertilizer is applied to each ridge. Part of the root system of corn plays the role of absorbing fertilizer, and some roots are not in the fertilization area,...

AI Technical Summary

Problems solved by technology

[0002] Drip irrigation cultivation technology under mulch film is a brand-new cultivation technology. If the traditional method of fertilization is continued, it cannot meet the fertilizer demand of corn in each growth period.

The specific performance is as follows: First, the traditional fertilization method (strip application) has the same fertilization depth. When the corn root system does not grow to the fertilization position, the corn cannot absorb the applied fertilizer. 10% of the required fertilizer), but it is not unnecessary, so the fertilizer can not be absorbed at the time, thus affecting the growth of corn

The second is that the traditional fertilization method only applies one line of fertilizer per ridge. Part of the root system of corn plays the role of absorbing fertilizer, and part of the root system is not in the fertilization area, so it cannot play the role of fertilizer absorption, and the fertilizer utilization rate is low.