A kind of substrate soil binary cultivation method

Abstract

The invention provides a matrix soil binary-cultivation method for controlling root system deep layer distribution, preventing a death disease, increasing the yield and improving the water and fertilizer utilization rate. The matrix soil binary-cultivation method comprises the following steps of land preprocessing, holing or furrowing, fertilization, matrix backfilling, laying, watering and film coverage. In the step of land preprocessing, filling is performed with great water for 5 days, the water depth is 4 cm, and rotary tillage of 25 cm is performed after 7 days. Black mulching films are laid, filling continues for 10 days, the filling is completed when soil oxidization-reduction level is reduced to 45-50 mv, sealed treatment with laid black mulching films is performed for 7-9 days, and the films are opened when the CO2 content at the deep position of 30 cm of soil reaches 15-18%. The fusarium solani number in the soil treated by adopting the method is 0.8 spore / g, and the cellulase activity of the soil is 0.54 mg of glucose / (10g-72h). The method is applied to cucumbers, the root rotoccurrence rate is 0.6%, the yield increase rate is 34.3%, the fruit uniformity is high, and thefruit diameter is 30-31 cm.

Description

technical field [0001] The invention belongs to the technical field of agricultural cultivation, and relates to a substrate soil binary cultivation method for controlling root systems, in particular to a substrate soil binary cultivation method for controlling the deep distribution of roots, preventing dead tree diseases, increasing yield and improving water and fertilizer utilization. Background technique [0002] If the temperature and humidity of the soil surface are suitable for the growth of plants, and the supply of water and fertilizer is sufficient, most of the roots of the plants will be distributed on the soil surface. [0003] In the middle and late stages of plant growth, the sunlight in summer is too strong, the temperature of the soil surface is too high, and the root system on the soil surface is heated and rotted, resulting in dead trees; the temperature difference between day and night in autumn and winter is large, the temperature of the soil surface changes...

AI Technical Summary

Problems solved by technology

The water retention of the soil is strong, and the air cannot be replenished into the soil for a long time, resulting in the lack of oxygen in the root system in the soil, resulting in the death of retting roots

At the same time, due to the strong water retention of the soil, sufficient water and fertilizer supply to the root system for a long time inhibits the growth and diffusion of the root system, and cannot form a huge root system.