论文部分内容阅读
追肥后及时、合理灌水,可以改善作物吸肥状况,促进生长。碳酸氢铵因有效成分低、易挥发,追后更应及时灌水。 为探讨水追碳酸氢铵的经济效果,我们以施肥后不灌水为对照,进行了追完就及时灌水、追肥后5天灌水、追肥后10天灌水的试验。结果是,追完就灌的比对照增产36.9％,追后5天灌水的增产22.9％,追后10天再灌水仅增产7.1％。据
Time after the top dressing, irrigation, can improve the status of crops to absorb fertilizer and promote growth. Ammonium bicarbonate because of the low active ingredient, volatile, after chasing more timely irrigation. In order to explore the economic effect of water chasing after ammonium bicarbonate, we used no irrigation after fertilization as a control, after chasing finished timely irrigation, top dressing five days after irrigation, top dressing after 10 days of irrigation test. As a result, 36.9% more yield was achieved after chasing irrigation, 22.9% more irrigation was chased after 5 days and 7.1% more after 10 days of reperfusion. according to