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本试验于1961-1963进行,结果表明:1.在亩产干茶300斤,施肥水平为纯氮36斤的茶园,增加追肥次数可提高施肥效果。如以追2次的三年平均产量为100的话,年追3次的为116.6,年追5次的为125.5。2.土壤中 N 素的变化,五次追肥区从3—10月有效 N 出现五个高峰,三次追肥只有三次
The test was carried out in 1961-1963, the results showed that: 1. 300 kg of dry tea per mu, fertilization level of 36 kg of pure nitrogen tea garden, increasing the number of top dressing can improve the fertilization effect. If chase two times the average yield of three years, then 100, chasing three times a year to 116.6, five times a year to 125.5.2. Changes in soil N, five top-dressing areas from March to October effective N There are five peaks, three times the top dressing only three times