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里下河地区土质粘重,小麦苗期普遍发育迟缓,不易形成壮苗越冬,从而影响小麦单产的进一步提高.近两年来,我们在兴化县的稻茬乌粘土上,就不同栽培条件对促进麦苗早发的效果进行了系统观察研究,现将结果整理如下:两年追踪观察结果表明,早发壮苗是小麦高产的基础.冬前壮苗根系发达,单株叶面积大,带蘖多,干物质积累多,有利于争多穗、大穗.据1982年对22个处理800多株分蘖追踪结果,不同时期发生的分蘖,以冬前
Lixiahe area soil sticky, wheat seedling generally sluggish, not easy to form strong winter, thus affecting the further improvement of wheat yield.In the past two years, we Xinghua County rice stubble, on different cultivation conditions on The results of the two-year follow-up observation showed that early seedling emergence is the basis of high yield of wheat. The root system of winter seedlings developed, with large leaf area per plant and tiller More and more dry matter accumulation, is conducive to fight more spike, big spike.According to 1982 to 22 to deal with more than 800 lines of tillers tracking results, tillering occurs at different times, before winter