Chinese Agricultural Science Bulletin ›› 2012, Vol. 28 ›› Issue (19): 245-248.doi: 10.11924/j.issn.1000-6850.2012-0334
Special Issue: 园艺
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The aim was to study the rational fertilization of autumn cabbage 87-114. Field experiments was carried out with "3414" design of the optimal regression test, the conventional fertilization of nitrogen, phosphorus and potassium were 360 kg/hm2, 180 kg/hm2 and 180 kg/hm2. The results showed that based fertility test area was 86.3%, three fertilizer contribution rate of K>N>P. Fertilizer recommended rates were stimulated by the models of one-factor. The results indicated that the optimum fertilizer rates of nitrogen (N), phosphorus (P2O5) and potassium (K2O) were 334 kg/hm2, 106 kg/hm2 and 140 kg/hm2 respectively. The ratio of nitrogen, phosphorus and potassium was 2.39:0.9:1. "3414" test could determine nitrogen, phosphorus and potassium application and reduce the three fertilizer application under the existing conditions of soil fertility.
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URL: https://www.casb.org.cn/EN/10.11924/j.issn.1000-6850.2012-0334
https://www.casb.org.cn/EN/Y2012/V28/I19/245