不同种植方式对河套灌区玉米生长动态及产量形成特性的影响

针对河套平原灌区玉米种植模式传统单一和再增产潜力较大等实际问题,于2018年在五原县进行玉米不同种植模式田间小区试验,探究了一穴双株、一穴3株、无膜浅埋滴灌绿色种植、超高产种植和割苗种植5种种植模式对玉米生育特性及产量的影响。结果表明,不同种植模式对玉米生长发育和产量影响显著,无膜浅埋滴灌绿色种植模式下,玉米株高表现良好;一穴双株和超高产种植下,玉米植株叶片数和叶面积指数以及果穗性状表现最好。在产量方面,一穴双株种植模式增产效果最显著(P<0.05),与其他模式相比,分别增产22.7%、37.4%、28.8%和15.9%。综上所述,一穴双株种植模式可作为河套灌区高产栽培模式推广应用。

Effects of different planting methods on growth dynamics and yield formation of corn in Hetao irrigated area

Corn planting patterns in Hetao plain irrigation area of traditional single and potential yield practical problems such as large again, in 2018 in Wuyuan County different planting patterns in corn field plot test, to explore a cave double strains, and for this reason a hole, no green planting, cultivation of super-high-yield membrane shallow embedding and cutting seedling planting 5 kinds of planting pattern"s influence on the growth characteristics and yield of corn. The results showed that different planting patterns had significant effects on the growth and yield of corn. The leaf number, leaf area index and ear traits of corn plants were the best under the cultivation of two plants in one hole and super high yield. In terms of yield, the two-plant planting mode with one hole had the most significant increase in yield (P<0.05), which increased by 22.7%, 37.4%, 28.8% and 15.9%, respectively, compared with other modes. The average yield of different planting patterns was shown as > seedlings of two plants in one hole and > seedlings of three plants in one hole. In conclusion, the one-hole two-plant planting model can be applied as a high-yield cultivation model in Hetao irrigation area.