| In this paper, Ningxia Yellow River Irrigation solved rainfed rice water saving micro-irrigation under film, based on the Yinchuan eight teams Ping Ji Fort agricultural experiment and demonstration bases, orthogonal test, comparison test methods for micro-irrigation of rice in Ningxia Yellow River Irrigation cropping patterns and the optimal combination of fixed and frequency for a more systematic experimental study, the main results are as follows:(1) Through the rainfed rice three kinds of micro-irrigation method comparison test, clearly defined in the irrigation and irrigation frequency under the same conditions, drip pattern matching micro jet and jet with micro-sprinklers microjet model high yield.(2) through irrigation methods, irrigation scheduling, irrigation frequency three-factor orthogonal experiment, a clear priority of factors for the irrigation frequency> irrigation quota> irrigation methods, and photosynthesis of the law, to determine the optimal combination of various factors the actual process water demand and crop coefficient.(3) There are three ways under micro-irrigation and narrow width film film comparison test, a clear width drip cover microjet cover film and the jet with a narrow film better. |
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