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在初步明确了连作早稻氮肥施用量以后,对于氮肥的不同施用方法,就成为争议最多的技术问题。本文就1984年早稻氮肥不同施肥模式试验结果综述于后。一、试验方法和经过试验按统一设计进行,小区面积0.05亩,三次重复,五个处理,共分四种模式。5号处理同为习惯施肥模式,而施肥量增加了15
After preliminary identification of continuous cropping nitrogen application rates, different application methods of nitrogen fertilizer have become the most controversial technical issues. In this paper, the results of different fertilization modes of nitrogen fertilizer in 1984 are summarized in later. First, the test methods and tested according to a unified design, the plot area of 0.05 acres, three repetitions, five treatment, is divided into four modes. No. 5 is the same as the conventional fertilization mode, while the amount of fertilizer increased by 15