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草木樨是河西地区的主要麦田绿肥。一般在小麦灌头、二水时套入麦田。我们对当年生草木樨的不同密度、株高和产草量进行了广泛调查,通过统计分析,探讨了其间的相关关系,从而提出了几项栽培技术措施,供草木樨绿肥生产的参考。一、草木樨当年产草量与密度及株离的关系。了解草木樨产草量与其群体和个体状况的依赖程度,是制定行之有效的栽培技术措施的重要依据。1979年在北地大队试验地和大田进行了多点调查,对产草量与密度及株高的关系,进行了多重回归分析(表一)。
Grass mulberry is the main wheat field green manure in Hexi area. Generally in the wheat head, two sets of water into the wheat field. We conducted an extensive survey of different density, plant height and grass yield of the annual plant, and discussed the correlation between them through statistical analysis, and put forward several cultivation techniques for the reference of the production of green plant fertilizer. First, the vegetation that year and the density of grass and plant off the relationship. It is an important basis for developing effective cultivation techniques and measures to understand the dependence of grass yield on its population and individual status. In 1979, a large number of surveys were conducted between the northern brigade test site and Daejeon. Multiple regression analysis was conducted on the relationship between grass yield, density and plant height (Table 1).