Soilless culture substrate

Abstract

The invention relates to a soilless culture substrate. The substrate is coconut coir processed into blocks, is processed from coconut husk, and is 5.5-6.5 in pH value. The soilless culture substrate specifically comprises 650g of coconut bricks, 5kg of coconut coir and 5kg of coconut blocks, wherein the coconut bricks are water-washed desalted coconut bricks of which the particle sizes are 6 millimeters, the sizes are 20*10*6 centimeters and the weights are 640- 660g; the coconut bricks can be used after being fully soaked to 6-7 liters; the coconut coir is water-washed desalted coconut coir of which the particle size is 6 millimeters, the size is 30*30*13 centimeters and the weight is 4,950-5,050g; the coconut coir can be used after being fully soaked to 60-70 liters; the coconut blocks are desalted medium-grained particles of which the particle sizes are 1-1.5 centimeters and the sizes are 30*30*15 centimeters. According to the method, broken coconut husk with higher permeability and inertia than perlite and vermiculite is taken as the substrate. The coconut coir is naturally degradable, so that environmental pollution is prevented. The substrate can be used circularly, is clean and sanitary, and has high cost performance; water and fertilizers are saved, and the quality and yield of crops are improved.

Description

technical field [0001] The invention relates to a soilless cultivation substrate, which belongs to the technical field of soilless cultivation. Background technique [0002] As an important representative of new agriculture, soilless cultivation has helped humans successfully overcome the obstacles of continuous cropping such as soil desertification, salinization, and compaction. It also has many advantages such as high yield, high quality, controllability, and pollution-free crops. The substrate is an important part of the soilless cultivation system. The research on the substrate reflects the development level of the soilless cultivation technology to a certain extent. The function of the substrate has four aspects: fixed crop root system, water supply, fertilizer supply and gas exchange. Substrate cultivation is a soilless cultivation method that fixes plant roots with a solid substrate (medium) and absorbs nutrient solution and oxygen through the substrate. There are ma...

AI Technical Summary

Problems solved by technology

[0003] The substrate of traditional soilless cultivation is the deployment of various organic matter, making it equivalent to the improved soil. After the substrate is prepared and planted several crops, the organic components and microorganisms in the substrate will change, and the organic components cannot Supplement, and it is impossible to remove microorganisms in a targeted manner. Generally, this kind of substrate can only be used for 3 years, and then it will not be able to exert its advantages