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我省黑龙港地区除分布有沙碱薄地外,粘重型土壤面积也占有相当的比例。由于该类型土壤有机质含量高,保水保肥效果好,后期发苗能力强,种植棉花增产潜力大,效益高,近年来发展较快。但粘土地还有“发老苗不发小苗”的特性。特别在早春,地温回升慢,发苗迟缓。若管理不当,很容易造成贪青晚熟,霜后花量增大,影响棉花的品质和产量。故此,保
In addition to the distribution of sandy alkali area in Heilongjiang Province in our province, viscous heavy soil area also occupies a considerable proportion. Due to the high content of organic matter in this type of soil, the effect of water and fertilizer is good, the ability of seedling emergence in the later period is strong, the yield potential of planting cotton is large, and the benefit is high. In recent years, it has developed rapidly. However, there are clay “hair seedlings do not send seedlings,” the characteristics. Especially in early spring, ground temperature slow recovery, hair delay. If not properly managed, it can easily lead to late blooming and late blooming, which will affect cotton quality and yield. So, Paul