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一、化肥深施 经济合理施用化肥是水稻增产的重要措施。但是水稻的主要生育期中田面处于淹水状态,化肥按通常采用表层撒施方法,养分损失非常严重。根据国内多点试验资料,化学氮肥利用率仅30—50％;磷肥利用率更低,一般只有10—20％。 近两年来,阿克苏垦区农垦二团在化肥的使用上有了新的改进,重视氮磷配合,在播前将部分氮肥与全部磷肥或全部氮磷肥一
First, the deep application of chemical fertilizer Economic and rational application of fertilizers is an important measure for rice yield. However, during the main growth period of rice, the surface of the paddy field is flooded, and the fertilizers usually adopt the method of surface spreading and the nutrient loss is very serious. According to the domestic multi-point test data, the utilization rate of chemical nitrogen fertilizer is only 30-50%; the utilization rate of phosphate fertilizer is lower, generally only 10-20%. In the past two years, Aksu Reclamation Reclamation Troupe 2 has made new improvements in the use of chemical fertilizers, attaching importance to nitrogen and phosphorus cooperation. Before sowing, some nitrogenous fertilizers and all or a combination of nitrogen and phosphorus fertilizers