间作与清种玉米农艺性状及产量的比较研究

Comparison on Maize Agronomic Traits and Yield of Intercropping and Monoculture

以清种玉米为对照,设计玉米/大豆4∶2间作,在间作区内实行3年轮作处理,对玉米的农艺性状、产量及产量因素进行研究。结果表明,生长前期间作玉米株高和叶面积高于清种,后期间作相对较低,差异不显著。间作条件下,玉米根系总长、表面积、体积均高于清种,差异极显著。产量构成因素中,间作玉米穗长和行粒数均高于清种,差异显著;穂粗、穗行数和百粒重差异不显著。单纯比较玉米产量,处理间无显著差异;间作的单位面积子粒总产量明显高于对照。

In this experiment, maize monoculture as control, maize/soybean 4∶2 intercropping and crop rotation in the design of intercropping regions shall be three years to study the maize agronomic traits, yield constituents and yield. The results showed that the intercropping maize plant height and leaves area were higher than monoculture treatments in earlier stage, whereas the intercropping is lower in latter stage, but the difference was not significant. Intercropping maize root length of treatment, surface area and volume are maize total root length, surface area and root volume in intercropping treatment were higher than the monoculture, and the difference was significant. In the yield constituents of maize, the intercropping treatment of ear length and grains per row were higher than the monoculture, the difference was significant. The differences between treatments of ear perimeter, rows per ear and 100-grain weight were not significant. Simply compared the maize yield, it was no significant difference;the unit area grain yield intercropping significantly higher than controls.