棉花氮磷钾肥效及其营养动态研究

• 作 者: 王佐堃 杨福诚 夏爱美
• 机 构: 河南省农科院经作所,河南省农科院经作所,河南省农科院经作所,
• 出 处: 河南农业科学
• 发表日期: 1988年01期
• 关键词: 棉花高产 棉花生育 土壤气候 氮磷钾肥 皮棉 合理施肥 籽棉产量 苗龄 蕾期 棉花现蕾

经济合理施肥,是棉花高产优质的重要措施之一。近半个世纪以来,研究棉花施肥的资料很多;争取棉花高产(每亩皮棉100—150公斤)是广大科技人员的愿望。但是研究结果与高产实际相符合的较少。原因是棉花高产因素是多方面的,而肥效的发挥作用,也受多种可变条件的干扰,虽然同种、同量肥料,在不同土壤气候、栽培制度和技术等条件下,其反应在棉花生育和产量上,并不完全一致。所以这是一个难度很大的课题,还必须从多方面深入细致地继续研究。

Economic and rational fertilization is one of the important measures of high yield and quality of cotton. Nearly half a century, many studies on cotton fertilization information; for cotton yield (100-150 kg per acre lint) is the wish of the majority of scientific and technological personnel. However, the results of this study are less in line with the actual production of high yield. The reason is that high yield factors of cotton are various, and the effect of fertilizer efficiency is also disturbed by a variety of variable conditions. Although the same type and the same amount of fertilizer, under different soil climate, cultivation system and technology, the reaction is in Cotton growth and yield, is not entirely consistent. Therefore, this is a very difficult topic, but many aspects must be further and carefully studied.