棉花等氮量追肥试验简报

• 作 者: 陈光婉
• 机 构: 湖北省农业科学院棉花所
• 出 处: 湖北农业科学
• 发表日期: 1981年06期
• 关键词: 试验简报 蕾期 增产效果 联合试验 生物学产量 生殖器官 硝态氮含量 花铃期 代谢作用 分配量

氮素营养是棉花高产最重要的因子,代谢作用强弱大多取决于土壤中氮素的多少。因此氮素供应状况如何,决定着棉花营养器官与生殖器官的形成,最后明显地影响到产量和品质。为了做到合理施用氮肥,协调棉株营养与生殖生长,提高棉花产量,从1975年以来,我们在棉麦两熟栽培制度条件下,与棉产区协作进行了总用氮量相等、等氮量追肥对棉花增产效果的联合试验。现将结果简报如下。

Nitrogen nutrition is the most important factor for high cotton yield. The metabolism is mostly dependent on the amount of nitrogen in the soil. Therefore, the status of nitrogen supply determines the formation of vegetative organs and reproductive organs of cotton, and finally affects yield and quality obviously. In order to achieve the rational application of nitrogen fertilizer and coordinate the nutrition and reproductive growth of cotton plants and increase the cotton yield, since 1975, under the condition of cotton and wheat double cropping system, The amount of fertilizer on cotton yield increase joint test. The result is now as follows.