Wide-ridge mulching furrow-irrigation method in greenhouse

Abstract

The invention discloses a wide-ridge mulching furrow-irrigation method in a greenhouse. According to the wide-ridge mulching furrow-irrigation technology method, 60% water regulated deficit irrigationtreatment is performed in the seedling stage, 70% water regulated deficit irrigation treatment is performed in the flowering and fruit setting stages, and 70% water regulated deficit irrigation treatment is performed in the fruiting stage. In the test, greenhouse tomatoes are used as research objects, and three level irrigation lower limits are set to be 50%, 60% and 70% of field water capacity,and influences of the wide-ridge mulching furrow-irrigation technology on the growth, water consumption and yield and water utilization efficiency of the sunlight greenhouse tomato fruits and plants are studied. The technical method provided by the invention saves water 25% or more than conventional furrow irrigation; the method improves the soil temperature, and effectively inhibits growth of weeds; the method can effectively reduce the air humidity in the greenhouse, and reduce the disease incidence rate and the disease index; and method facilitates improvement of the yield and the water utilization efficiency, and promotes growth of a root system. At the same time, mulching at the furrow bottom can increase horizontal lateral infiltration, accelerate an advance speed of a water flow infurrows, and improve the irrigation uniformity and irrigation efficiency while reducing vertical seepage.

Description

Technical field [0001] The invention relates to the technical field of agricultural irrigation, in particular to a method for wide-ridge mulching and furrow irrigation in a greenhouse. Background technique [0002] Irrigation is the only source of water in the cultivation of protected crops. The study found that the proportion of irrigation water consumption under border irrigation in the facility is distributed. Biomass formation accounts for only 3%, transpiration accounts for 27%, evaporation accounts for 20%, and leakage accounts for 50%. Obviously border irrigation and Furrow irrigation has become "the most water-wasting irrigation". However, advanced drip irrigation and other micro-irrigation technologies have high investment, and the clogging of the irrigation system causes crop yields to increase and increases production costs. Undoubtedly, micro-irrigation technology has become the "most expensive water saving". According to the survey, in the production of facility agr...

AI Technical Summary

Problems solved by technology

[0003] Insufficient existing technology: At present, wide-ridge film-covered furrow irrigation technology is mainly used in field crop research, and it is beneficial to rainwater collection and irrigation in semi-arid areas

However, there is little research on the application in greenhouses

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