Analysis of nitrogen agonomic efficiency and its components in maize crosses
关于玉米杂交中的氮农学效率及其构成因素分析

摘要

随着杂交小麦栽培面积持续增加，小麦杂交种的供应量也相应增加，制种覆盖面扩大。小麦的杂优种类往往有着高产、耐久性强等优势，所以在玉米种植区，栽培杂优种类已变成农户提高产量和扩大经济收入的途径。玉米作为许多人都喜欢的食品之一，在全世界的播种面积巨大。但是，也由于当时我国农民大多是在生产平展型的小麦种，导致小麦的产量并不高，而为了能够使我国玉米的产量更高，同时收获的数量也更多，我国科学家们选择了几种优质玉米种的杂交，并以此进行了对传统玉米栽培的方法革新，并由此在很大程度上增加了小麦的产量。正基于此，本文将深入研究在不同玉米杂交种中对氮农学效能的影响，及其对在玉米杂交种中氮农学效能的构成与影响，为玉米品种获得高产提供理论基础。

Abstract

As the cultivation area of hybrid wheat continues to increase, the supply of wheat hybrids also increases correspondingly, and the coverage of seed production expands.Mixed varieties of wheat often have the advantages of high yield and strong durability, so in corn planting areas, cultivated mixed varieties have become a way for farmers to increase their yield and expand their economic income.As one of the favorite foods of many people, corn has been sown greatly around the world.However, also because our country farmers are mostly in the production of flat wheat, lead to wheat yield is not high, and in order to be able to make our country corn yield is higher, at the same time the harvest quantity is more, our country scientists chose several high quality maize species of hybrid, and to the method of traditional corn cultivation innovation, and thus to a large extent increase the yield of wheat.Based on this, this paper will deeply study the effect on nitrogen agronomy efficiency in different maize hybrids and that in maize hybrids, so as to provide a theoretical basis for obtaining high yield of maize varieties.