A cultivation tank for stably supplying soil moisture for tap root crops

Abstract

The invention relates to a cultivation tank for stably supplying soil moisture for taproot crops, which comprises a truncated inverted conical tank body with a wide top and a narrow bottom, and a plurality of columnar microporous clay pipes that are nearly parallel to the main root are arranged in the tank body. Porous clay pipes form a truncated inverted cone on the periphery of the longitudinal centerline of the tank body. The microporous clay pipes are all hollow cylinders, and each microporous clay pipe is connected to a water pipe, which extends to the outside of the tank and supplies water to the outside. The device is connected, which truly realizes the dynamic and stable supply of water required by taproot crops, thereby avoiding drought stress damage to crops caused by soil water shortages that cannot respond in time, and can achieve efficient use of water and fertilizers and avoid waste of water and nutrients.

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 CN201830706U (patent number: 201020528940.5), and a negative pressure automatic irrigation basin disclosed in Chinese patent document CN101185413A (patent number: 200710178527.3) discloses a device for automatically controlling the constant soil water potential. The water supply tray or water supply pipes of the above devices are all arranged at the bottom of the root system, and there is no design of different soil moisture stable supply cultivation devices according to the characteristics of the specific crop root system and the operation of the realization technology method, it is impossible to study the characteristics of stable water and nutrient supply of different crops to the maximum extent, 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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