Small soilless culture method and device

Abstract

The invention relates to a small soilless culture method and device. A nutrient solution is contained in a culture disk or a nutrient solution storage pool; crops are planted into the nutrient solution; a soil copy material is added into the nutrient solution; the soil copy material comprises the following raw materials in parts by weight: 20-90 parts of organic matter and 2-80 parts of nonmetal mineral substance, wherein the organic matter is one or mixture of peat, fermented straw, fermented bagasse and fermented livestock and poultry manure; the nonmetal mineral substance is one or mixtureof coal ash, steel slag, zeolite, bentonite, opal, attapulgite mineral soil, pearlite, vermiculite, rectorite clay, sepiolite clay and kieselguhr; and the proportion of the nutrient solution to the soil copy material is (5-2):1. By adding the soil copy material into the nutrient solution, the nutrient charge concentration can be improved, the nutrient charge frequency is reduced, and the labor cost is reduced; meanwhile, when the concentration is reduced due to the absorption of the nutrients, the concentration reduction range is slower, and a deficiency symptom caused by lacking nutrients ofplants is lightened; in addition, trace elements needed by plants can be also supplemented.

Description

technical field [0001] The invention relates to a cultivation technique for crops, in particular to a small-scale soilless cultivation method for a nutrient-controlled release nutrient solution, and belongs to the technical field of agricultural planting. Background technique [0002] With the continuous growth of population and the rapid development of urbanization, land resources are becoming more and more scarce. Especially in recent years, the rapid growth of car ownership in cities has occupied more and more scarce land. People who live in the concrete forest made up of high-rise buildings in the city seem to have a luxury to fully enjoy the sunshine and green space. In addition, in cities and surrounding areas, due to the pollution of industrial waste gas, waste residue, and wastewater, the soil structure and micro-ecological environment have been damaged, and the quality of agricultural products has also declined year by year. Based on the above-mentioned status quo,...

AI Technical Summary

Problems solved by technology

However, the current soilless cultivation technology has problems such as large one-time investment, high technical requirements, and difficult management.

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