Water-saving irrigation method for grapes in hilly areas

Abstract

The invention provides a water-saving irrigation method for grapes in hilly areas. A fertilizer and water retaining agent is added to water for irrigation, irrigation is performed one time before sprouting and at a shoot growth stage and a young fruit expanding stage respectively, irrigation is performed one time at a fruit expanding stage, and irrigation is performed one time at a dormancy stage, wherein the fertilizer and water retaining agent is prepared by mixing urea, potassium chloride, ammonium phosphate, starch grafted acrylic acid and sodium polyacrylate. A macromolecular water retaining agent and a fertilizer are compounded and mixed to prepare the fertilizer and water retaining agent, and the fertilizer and water retaining agent is added into water for irrigation. On one hand, the water absorption function of the fertilizer and water retaining agent is utilized to store irrigation water so as to save later water amount for irrigation; on the other hand, the carrier effect of the macromolecular water retaining agent is utilized to load the fertilizer so as to decrease the use amount of the fertilizer, and the utilization rate of the fertilizer is improved.

Description

technical field [0001] The invention belongs to the technical field of agricultural irrigation, and in particular relates to a water-saving irrigation method for grapes in hilly areas. Background technique [0002] The cultivated land area of ​​Zhenjiang City is 147,000 hectares, of which 95,000 hectares are hilly cultivated land, accounting for about 65% of the entire cultivated land area, and the low- and medium-yielding fields account for about 60% of the city's cultivated land area, including 33,000 hectares of hilly and dry land, which is prone to flooding and drought The area is about 67,000 hectares. The distribution of rainfall is uneven in time and space, and the amount of rainfall varies greatly between years and regions. Generally, the water use efficiency of dryland farmland is only about 40% to 50%. Due to the complex topography and fragile ecological environment in this area, the utilization rate of precipitation in the hills is not high, and the ability to ...

AI Technical Summary

Problems solved by technology

However, my country's water use efficiency is extremely low, and water resources are wasted seriously.

Most of the traditional orchard irrigation systems still rely on manual operation, relying on experience and feeling to irrigate the orchard, which does not save water resources, and at the same time consumes man-hours. Extensive irrigation methods also affect the yield and quality of fruit