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2013年,小麦播种期间,无有效降雨,造成小麦播种期延长,小麦弱苗较多,种类复杂,在管理上,注意分清小麦形成弱苗的原因,分类加强管理,促进弱苗转壮,为明年丰收奠定基础。因干旱造成弱苗播种时底墒不足或整地粗糙、透风跑墒的麦田。表现为麦苗叶色灰绿、分蘖少、心叶短小、生长缓慢、下部叶片发黄干枯、根少而细。在管理上,结合浇水或趁降雨、降雪,每667平方米追施碳铵15千克。
In 2013, during the sowing period of wheat, there was no effective rainfall, resulting in the prolongation of wheat sowing time. There were more wheat with weak seedlings and more complex species. In management, attention should be paid to distinguish the reasons for the formation of weak seedlings in wheat and to strengthen management to promote the transformation of weak seedling to Next year harvest foundation. Due to the drought caused by lack of planting or planting of seedlings at the end of rough soil preparation, ventilation and moisture sowing wheat fields. The performance of barley leaf color gray green, less tillers, short leaf heart, slow growth, the lower leaves yellow dry, small and thin roots. In the management, combined with watering or rainfall, snowfall, topdressing 15 kg of ammonium bicarbonate per 667 square meters.