Water and fertilizer integrated fertilization method based on crop root growth distribution rule

Abstract

The invention belongs to the technical field of crop fertilization, and discloses a water and fertilizer integrated fertilization method based on a crop root growth distribution rule, and the method comprises the following steps: planting crops and reference crops at the same time; calculating root system distribution of the reference crop through a calculation terminal, generating different soil layers along a vertical line direction through simulation, and calculating water and fertilizer proportions of the different soil layers; detecting root system distribution conditions of reference crops in different soil layers through a detection device; burying an infiltrating irrigation pipeline in the infiltrating irrigation pit by taking the crop stalk as a circle center; mixing the crop fertilizer with water to obtain a liquid fertilizer; the irrigation water mixed with the liquid fertilizer flows into the soil through the infiltrating irrigation pipeline for fertilization, and the flow of the liquid fertilizer output by the infiltrating irrigation pipeline is controlled according to the three-dimensional fertilization proportion control model. According to the invention, the root system distribution of the reference crop is calculated through the calculation terminal, so that the water-fertilizer proportion and the infiltrating irrigation time required by crop roots in different soil depths can be accurately determined.

Description

technical field [0001] The invention belongs to the technical field of crop fertilization, and in particular relates to a water and fertilizer integrated fertilization method based on the growth and distribution rules of crop roots. Background technique [0002] At present, my country is one of the countries with serious shortage of water resources. Agricultural water accounts for more than 60% of the country's total water use. The annual shortage of agricultural water seriously restricts the sustainable development of my country's agriculture. However, the root system is the only way for crops to absorb nutrients from the soil. Organs, fertilizer and water management have gradually become the bottleneck for many orchards to increase production and income. [0003] However, the traditional methods of drip irrigation and sprinkler irrigation are to apply water to the soil surface, the water is easy to evaporate, and it will also cause the root system of the fruit tree to float...

AI Technical Summary

Problems solved by technology

[0004] Through the above analysis, the existing problems and defects of the prior art are: the traditional drip irrigation and sprinkler irrigation measures are to apply water to the soil surface, the water is easy to evaporate, and it will also cause the root system of the fruit tree to float up, which is not conducive to the drought resistance and cold resistance of the fruit tree, and there is also insufficient fertilization. Uniformity, excessive waste of fertilizer, inconvenient farming operations, etc.

Images