Nutrient Absorption and Distribution of Spring Maize in Different Ecological Zones of Jilin
A field experiment was conducted to analysis the absorption, distribution and translocation of nitrogen (N) , phosphorus (P) and potassium (K) of spring maize in Gongzhuling and Qian'an of Jilin Province. The results were shown as follows, N and P uptake after silking in Gongzhuling were 26. 1% , 20. 5% of total uptake respectively, which were 28. 0% , 25. 8% in Qianan. K uptake before silking in Gongzhuling and Qianlan were 84. 2% , 92. 3% of maximum K uptake respectively. Trends of N and P accumulation coincided with the transfer of growth center, while K not. The maximum accumulation of N, P and K in Gongzhuling was higher than that in Qianan , while the accumulation of K in Gongzhuling was a little lower than that in Qianlan at maturity stage. Regional difference was related to better soil nutrients, higher accumulated temperature, more rainfall and longer growth period in Gongzhuling. Xianyu335 shows a higher accumulation of N, P and K than Zhengdan958 in both regions.
国家科技期刊平台
NSTL
万方数据
维普
