The main technical regulations for integrated water-saving irrigation in orchards: 1. Design the water supply system according to crop water physiological and soil conditions (soil bulk density, field water capacity, soil thickness, etc.) and formulate the irrigation system (irrigation quota, time per irrigation, Irrigation cycle, number of irrigations and irrigation quota). 2. According to crop nutrient physiology, target yield and soil conditions (soil nutrients, soil texture, configuration, etc.), determine the fertilization system (fertilization time, frequency, quantity, formula ratio), and reasonably implement water and fertilizer coupling. 3, water and fertilizer coupling operation procedures: First, the fruit tree special red fertilization dissolved in the fertilizer container. Before adding fertilizer, the irrigation system is run for 15-30 minutes. After all the sprinklers in the irrigation area are sprayed normally, the fertilizer pump is started to add fertilizer to the water delivery pipe. Adjusting the pressure of the fertilizer pump must be greater than the outlet pressure of the pump to control the rate of fertilizer addition so that the fertilizer concentration in the orchard is less than 1/1000: After the fertilizer is added, the irrigation system must continue to operate for 30 minutes to more than 1 hour to scrub the pipeline. , to ensure that all the fertilizer applied to the orchard soil, and infiltration to the required depth. Effect analysis: Through the project area test, the effect of integrated water-saving irrigation technology of orchard in orchards is significant, the effect of fertilizer-saving is 50%, the investment of mu-saving is 90 yuan, the effect of water-saving is 50%, and 100 mu of water is saved per mu. The 1,000-mu demonstration area will save 90,000 yuan annually and save 100,000 square meters of water.
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