有机-矿物缓释材料对氮素吸收及玉米产量的影响

利用盆栽试验研究了不同有机-矿物缓释材料一次性基施对玉米产量及氮素吸收的影响。结果表明,有机-矿物缓释材料对玉米的吸氮量及在不同器官的氮素营养转化率均有明显的影响,不同程度地促进了玉米对氮的吸收,增加了氮在茎叶和子粒中的分配比例。处理F2吸氮量最高为46.1%,其次为F1>N2>N1;茎叶中氮营养转化率比对照提高,其顺序为N2>F2>F1>N1,根系中氮营养转化率有所下降;对玉米产量增产的次序为F2>F1>N2>N1,其中F2比对照增产41.7%。

The Effect of Organic- Minerals of Slowly-release Material on N Absorbed and Maize Yield

A pot experiment was studied the effect of organic-minerals of slowly-release material with single basal application on N absorbed and maize yield. The results showed that with the application of such inorganic nutrient NPK comparisons, organic-minerals nitrogen of slowly-release material uptake N and the different organs of nitrogen conversion rate had the obvious influence, varying degrees of nitrogen for the corn on the absorption and increase the distribution of nitrogen in leaf and conducive to high-yield seeds. F2 nitrogen uptook a maximum of 46.1%, followed by F1 > N2 > N1, shoot nitrogen conversion rate was increased its order N2 > F2 > F1 > N1. Root nitrogen conversion rates had decreased, F2 > F1 > N2 > N1 order to increase the yield of corn, which was increased by 41.7% compared with F2.