论文部分内容阅读
小麦拔节转入旺盛生长期,穗、叶、茎等器官一起迅速生长,是决定成穗率和争取壮秆大穗的关键时期。这一阶段管理好坏,对穗数多少、穗部性状好坏和产量高低都有密切关系。在拔节至孕穗期增施水肥一般不会有因群体过大、茎叶茂盛而造成田间遮光郁蔽的后顾之忧。所以在管理措施上要严防脱肥脱水,坚持节节促进,一管到底。抓紧有利时机,根据苗情、地力、气候等特点,做到巧施水肥巧管理,增粒增重夺丰收。
Wheat jointing into the vigorous growth stage, spikes, leaves, stems and other organs grow rapidly together, is to determine the rate of spike and strive for large stalks spike a critical period. Management of this stage is good or bad, the number of ears, the quality of the ear traits and the level of production are closely related. In the jointing to booting stage of the application of water and fertilizer are generally not as a result of the group is too large, stems and leaves lush and gloomy field caused by the worry. Therefore, the management measures to prevent fat and dehydration, adhere to the section promotion, a tube in the end. Seize the favorable opportunity, according to the characteristics of seedlings, fertility, climate and other characteristics, so that clever water and fertilizer Qiao management, increase grain weight gain bumper harvest.