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为了查明在新疆自然条件下,土壤水份和光照强度对大豆干物质生产和生态的影响,进行了4种灌溉量和4种光照率处理的裂区试验,在开花期处理1个月.试验期间使用了计算机控制下的数据采集系统,对供试作物在缺水和遮阴条件下,大豆群体内的光环境进行了调查,对大豆的物质生产、生态和受光态势的变化进行了研究.结果证明,缺水和遮阴都会使大豆叶面积减少,最终导致干物质生产量减少.水分和光环境的变化都将影响干物质分配率、株型和受光态势,但所影响的内容却不完全相同.缺水和遮阴都将影响单产和干物质生产量,特别是缺水对所有的产量构成要素均产生不利的影响,缺水还将促使叶片提早老化,使大豆植株早衰,对大豆产生不可逆的极大的影响.
In order to find out the effects of soil moisture and light intensity on dry matter production and ecology of soybean under natural conditions in Xinjiang, we conducted split-zone experiments of four kinds of irrigation amount and four kinds of illumination rates and processed them in flowering stage for one month. During the experiment, a computer-controlled data acquisition system was used to investigate the light environment in the soybean population under water deficit and shading conditions and to study the changes in material production, ecology and light receiving status of soybean The results showed that both water deficit and shading decreased the leaf area of soybean, which eventually led to the decrease of dry matter production.Water and light conditions will affect the dry matter partition ratio, plant type and light receiving situation, but the impact of the content is not The same lack of water and shading will affect yields and dry matter production, especially water deficit on all yield components have a negative impact, lack of water will also promote leaf premature aging, soybean plants premature aging, soybeans Produce irreversible great influence.