不同氮肥处理下玉米中营养成分的分析

doi:10.11924/j.issn.1000-6850.2011-3850

摘要/Abstract

摘要： 为考察氮肥对玉米品质的影响和探讨玉米合理的氮肥处理，采用田间试验和室内分析相结合的方法，研究不同氮肥处理下玉米中蛋白质、脂肪、氨基酸和维生素的含量。结果表明：在玉米的不同生长阶段都施以不同数量的氮肥（基肥：68 kg/hm²；拔节期：52 kg/hm²；大喇叭口期：30 kg/hm²；开花期：30 kg/hm²；灌浆期：45 kg/hm²），氮肥施用总量为225 kg/hm²时，玉米中蛋白质和脂肪含量最高，分别可达12.82%和9.68%，分别比对照（处理1）高86%和72%；而且在该处理条件下，所检测的所有氨基酸和维生素B1、B2和B6的含量高于其他处理。与其他施肥方式相比，此处理氮肥施入总量最少，因此合理的施肥方式不仅能改善玉米中营养成分的含量，而且能减少肥料的施加量，节约成本。

关键词: 烟草, 烟草

Abstract: To investigate the effect of N fertilizer on nutrient components of maize and rational N fertilizer treatment, the experiment, combining field experiment and laboratory analysis, was conducted to study protein, lipids, amino acids and vitamin contents of maize with different N fertilizer treatment. The results showed that, when the different input of N fertilizer was applied in different growth periods of maize (basic fertilizer was 68 kg/hm², at jointing stage was 52 kg/hm², at big trumpet stage was 30 kg/hm², at anthesis stage was 30 kg/hm², at grain filling stage was 45 kg/hm²), and the total input of N fertilizer was 225 kg/hm², protein and lipids contents were highest, which could reach 12.82% and 9.68%, and were 86% or 72% higher than that of the control (treatment 1), respectively. Also contents of all of detected amino acids and part of vitamins, including B1, B2 and B6, were higher than that with the others’treatment. With this treatment, the total input of N fertilizer was least. So rational treatment of fertilizer could not only improve the crop quality, but also decrease fertilizer input.

徐芳. 不同氮肥处理下玉米中营养成分的分析[J]. 中国农学通报, 2013, 29(3): 59-62.

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