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文章分析了旱地作物光合作用的特点,早地作物光合作用与产量形成的关系,光合作用和光能利用的诸方面因素。着重指出提高旱地作物光合作用的4条途径:1.通过鉴定根系的发达程度筛选抗旱性较强的作物品种。2.通过增施磷肥可显著地促进光合产物向子粒转运的速度。从而提高了群体的光能利用率。3.通过反复的干旱锻炼增强了作物的渗透调节能力和促进根系深生,进而增进机体的抗旱能力。4.通过化学药剂,如CaCl_2、CCC、
The article analyzes the characteristics of photosynthesis of dryland crops, the relationship between early photosynthesis and yield formation, photosynthesis and utilization of light energy. Highlight four ways to improve photosynthesis in dryland crops: 1. Screening for drought-tolerant crop varieties by identifying the extent of root development. Through the application of phosphate fertilizer can significantly promote photosynthetic products to the particle transport speed. Thus improving the group’s light energy utilization. 3. Increased ability of crops to penetrate and adjust to drought through repeated drought exercises, thereby enhancing the ability of the body to resist drought. 4. Through chemical agents, such as CaCl 2, CCC,