小麦拔节期正是根、茎、叶、穗全面生长的阶段,这个时期营养条件的好坏,对麦穗大小、麦粒多少及有效分蘖率的高低有着决定性的影响,要适时浇水追肥,过好夺穗、攻穗关。今年河北省石家庄专区冬小麦自2月中旬开始返青,2月下旬进入返青盛期,早浇返青水的,地温提高1—2度,返青早,永久根增加,分叶多,苗子粗壮,已奠定丰产的基础。要把这个基础巩固下来,主要在于拔节期继续搞好田间管理。小麦进入拔节期后,植株生长旺盛,需要大量的水肥。但是浇水追肥要根据土壤含水肥多少和麦苗生长情况进行,根据安 Wheat jointing stage is the root, stem, leaf, ear full growth stage, the nutritional condition of this period is good or bad, the size of the wheat, wheat and the number of effective tillering rate has a decisive impact, it is necessary to timely water top dressing, To take a good spike, attack spike off. This year, Hebei Province, Shijiazhuang Prefecture winter wheat since mid-February began to return to green, late February into the peak return period, early glauber water, ground temperature increased by 1-2 degrees, early spring green, permanent roots increased, more leaves, seedling sturdy, has been laid The basis of high yield. It is necessary to consolidate this foundation, mainly in the jointing stage and continue to improve field management. After the wheat enters the jointing stage, the plant grows vigorously and needs a large amount of water and fertilizer. However, top-dressing should be based on the amount of water-rich soil and wheat seedling growth, according to Ann