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应用系统工程理论,对“两旱一水”大麦和玉米间套作农艺的主要技术因子进行了研究,明确了玉米品种、间套作方式、密度、氮化肥用量与产量的关系,为此获得了95％保证率下大麦和玉米组合每公顷产量高于9750kg的优化农艺方案一套:玉米品种掖单-13、间套作方式玉米=大麦=玉米、密度80.1～82.7千株/ha、纯氮量231.0～253.5kg/ha。为大麦和玉米间套作高产稳产栽培措施决策提供了科学依据,对上海等长江下游地区发展“两旱一水”三熟制有一定参考意义。
Based on the theory of system engineering, the main technical factors of intercropping agronomic between “two dry and one water” barley and maize were studied. The relationship between corn variety, intercropping method, density, nitrogen fertilizer dosage and yield was clarified. A set of optimized agronomic schemes with a yield of more than 9,750 kg per hectare for a combination of barley and maize at a 95% guaranteed rate: maize variety Yeda -13, intercropping maize = barley = corn, density 80.1-82.7 thousand plants / ha, Nitrogen content 231.0 ~ 253.5kg / ha. Which provided a scientific basis for decision-making of high-yielding and stable cultivation of barley and maize, and had certain reference meaning for the development of “three drylands and one water” three-cropping system in the lower reaches of the Yangtze River in Shanghai.