天津玉米高产创建示范田产量结构分析

Yield Components Analysis of Demonstration Farm to Maize High-yielding Establishing Project in Tanjin

本文依据天津市玉米高产创建的9个示范区的测产产量结果,分析了玉米产量结构构成及其对产量的贡献。结果表明:在一定范围内通过增加种植密度实现收获穗数的增加,是实现高产创建主要措施;在保证穗数的基础上,粒重大小是决定高产与否的主要因素。

In this paper, the yield structure of maize and its contribution to the field were analyzed, based on the data of maize in 9 high-- yielding establishing demonstration areas in Tianjin, The results showed that in a certain range, increasing the planting density to increase harvest spikes was the major initiative measure for achieving high--yielding establishing project; and that on the basis of certain acre spikes, grain weight determined the high--yielding.