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为探索在怎样的施肥水平和施肥技术条件下,才能发挥杂交水稻最大的增产潜力,我们于一九七七年早造进行了试验,现将试验结果整理如下,供参考。一、试验方法品种:汕优二号试验田土壤含有机质3.46％,全氮0.18％,全磷(P_2O_5)0.18％,全钾(K_2O)1.74％,PH值5.8,属高肥力粘土田。试验处理: 第一组:氮磷钾按2∶1∶3递增
In order to explore what fertilization level and fertilization technology can we achieve the maximum yield potential for hybrid rice, we conducted a trial in early 1977. The test results are summarized below for reference. First, the test methods Variety: Shanyou two experimental soil organic matter content 3.46%, 0.18% total nitrogen, total phosphorus (P_2O_5) 0.18%, total potassium (K_2O) 1.74%, PH value 5.8, is a high fertility clay field. Test treatment: The first group: NPK 2: 1: 3 increments