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氮磷钾三要素的配合使用是提高棉花产量的一项重要措施。以往我们在棉花施肥问题上往往存在着“四多四少”现象:即化肥多有机肥料少,追肥多基肥少,苗肥多花铃肥少,氮肥多磷钾肥料少。特别是忽视磷钾肥料的配合施用,影响到棉花干物质的积累和抗逆能力,影响着棉花产量的提高。在缺磷的红、黄壤和缺乏有机质的烧沙地反映得更为明显。为了进一步摸索磷钾肥料对棉花的增产作用,我们进行了一些试验研究。一、试验方法一九八○年,我们在水西公社五星大队第二生产队进行了磷钾肥料施用对比试验,
The combination of three elements of NPK is an important measure to increase cotton yield. In the past, we often had the phenomenon of “more than 4, 4 less” on the issue of cotton fertilization: that is, less organic manure, more topdressing fertilizer, less seedling fertilizer, less nitrogen fertilizer, In particular, ignoring the phosphorus and potassium fertilizer with the application, affecting the accumulation of cotton dry matter and resilience, affecting the increase in cotton production. Reflected in phosphorus deficiency of red, yellow soil and the lack of organic matter burning sand is more obvious. In order to further explore the phosphorus and potassium fertilizer on cotton yield, we conducted some experimental research. First, the test method In 1980, we Shui West commune Five Star Brigade production team conducted a comparative test of phosphorus and potassium fertilizer application,