Cultivation trough for stably supplying soil water for tap root crops

Abstract

The invention relates to a cultivation trough for stably supplying soil water for tap root crops. The cultivation trough comprises a trough body with an obconical cutting head, the upper portion of the trough body is wider than the lower portion of the trough body, a plurality of columnar micropore clay pipes similarly parallel to a main root are arranged in the trough body, a turbinate cutting head is defined by the micropore clay pipes on the periphery of the longitudinal central line of the trough body, the micropore clay pipes are all in a hollow column shape, the micropore clay pipes are jointly connected with a water pipe, the water pipe extends out of the trough body and is communicated with an external water supply device, dynamic stable supply of the water needed by the tap root crops is truly achieved, therefore, the drought stress damage of the crops due to the fact that the soil water is in lack and the situation cannot be reflected in time is avoided, water and fertilizer can be efficiently utilized, and waste of the water and nutrients is avoided.

Description

technical field [0001] The invention relates to an irrigation device for maintaining normal growth of crops, in particular to a cultivation tank for maintaining stable water supply of tap root crops, belonging to the field of agricultural science and technology. Background technique [0002] Water is the lifeblood of human beings and a necessary condition for the normal growth of crops. Against the background of global warming, regional droughts and periodic droughts occur frequently, and under the severe situation of increasingly scarce water resources, water conservation and efficient water use are the themes of agricultural production and even various industries around the world. At present, the national agricultural irrigation water is about 350 billion m3 / a, accounting for 90% of the total agricultural water use and 63% of the national total water use. Due to the rapid increase of urban and industrial water use, the proportion of agricultural water use in the country's...

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Problems solved by technology

[0005] For another example, a negative head irrigation system disclosed in Chinese patent document CN1788542A (patent number: 200510123974.X), a negative pressure automatic irrigation basin disclosed in Chinese patent document CN 201830706U (patent number: 201020528940.5), and a negative pressure automatic irrigation basin disclosed in Chinese patent document CN 101185413A (patent No.: 200710178527.3) discloses a device for automatically controlling the constant soil water potential. The water supply trays or water supply pipes of the above devices are all arranged at the bottom of the root system, and there are no different soil moisture stable supply cultivation devices and realization technologies designed according to the characteristics of the root system of specific crops. The operating method cannot maximize the study of the characteristics of stable water and nutrient supply of different crops, and the structure is complex, the operating cost is high, and the timely demand for water by the root system cannot be met, which affects the normal growth of crops.

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