Solar greenhouse partitioned drop irrigation and carbon dioxide enrichment system and application method thereof

Abstract

The invention relates to a solar greenhouse partitioned drop irrigation and carbon dioxide enrichment system. The solar greenhouse partitioned drop irrigation and carbon dioxide enrichment system comprises partitioned drop irrigation devices and a carbon dioxide enrichment device, wherein the partitioned drop irrigation devices are arranged in the middle drop irrigation zone of a planting field aswell as side drop irrigation zones on both side of and parallel to the middle drop irrigation zone, the drippers of the middle drop irrigation zone and those of the side drop irrigation zones are distributed in a staggered mode; the carbon dioxide enrichment device comprises a gas storage device connected with a gas outlet pipe, an electromagnetic valve mounted on the gas outlet pipe, and a timecontrol switch electrically connected with the electromagnetic valve. The solar greenhouse partitioned drop irrigation and carbon dioxide enrichment system applies the drop irrigation technology in the planting conditions of solar greenhouses, arranges drop irrigation zone internals and dripper intervals more accurately, discloses a partitioned drop irrigation mode, and by matching with carbon dioxide enrichment, greatly improves the yield and the moisture utilization rate of crops planted in the solar greenhouses.

Description

technical field [0001] The invention relates to the field of facility agriculture cultivation, in particular to high-yield and water-saving cultivation in a solar greenhouse, and specifically to a solar greenhouse partition drip irrigation and carbon dioxide enrichment system and an application method. Background technique [0002] In 2015, the Ministry of Agriculture formulated and promulgated the "Implementation Opinions of the Ministry of Agriculture on the Battle of Agricultural Non-point Source Pollution Prevention and Control", which clearly requires that by 2020, the goal of "one control, two reductions and three basics" be achieved, and it is clearly pointed out that water use efficiency must be improved and achieve zero growth in fertilizer use. In recent years, my country's facility vegetable industry has blindly increased irrigation in order to pursue economic benefits, which has brought about a series of problems such as low water use efficiency, poor vegetable q...

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Problems solved by technology

However, the currently applied controlled alternating irrigation technology still has deficiencies, which will cause premature senescence in some plants, and the senescence process is faster than that of plants treated with conventional irrigation. , accelerated leaf chlorosis and yellowing, slow extension of new leaves, etc.; through the statistics of the yield data of the entire fruiting period, it was found that at the end of fruiting period, the yield of plants treated with existing alternate drip irrigation was lower than that of plants treated with conventional irrigation. The premature senescence and yield reduction of crops under controlled alternating irrigation treatment are called "side effects" of controlled alternating irrigation technology

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