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合理密植是增产的重要手段,密植后群体结构将发生一系列的变化。我们在前年研究的基础上,对银川地区丰产春小麦不同群体结构光能利用率及群体结构特点进行了研究,为挖掘和探索不断提高银川地区春小麦光能利用率的潜力和途径,夺取春小麦高产再高产提供理论依据。该项试验在我院实验农场进行。自春小麦分蘖盛期起,每十天对不同密度田块测定植株叶面积、干物质,乳熟期用大田切片法测定其群体结构及光能分布。各观测地块春小麦基本情况列于表1。
Reasonable close planting is an important means to increase production, and the population structure will undergo a series of changes after close planting. Based on the previous year’s research, we studied the light utilization efficiency and population structure of different groups of high-yielding spring wheat in Yinchuan. In order to explore and explore the potential and ways to improve the light energy utilization efficiency of spring wheat in Yinchuan area, Provide a theoretical basis for high yield. The experiment in our hospital experimental farm. From the tillering stage of spring wheat, the leaf area, dry matter and milky ripening stage of different density plots were measured every ten days. The population structure and light energy distribution were determined by field slicing method. The basic situation of spring wheat in each observation plot is shown in Table 1.