内蒙古扎赉特旗大豆玉米带状复合种植带型试验研究

Experimental Study on Belt Type of Soybean Maize Compound Planting in Jalaid Banner,Inner Mongolia

旨在探索最适宜扎赉特旗地区大豆玉米带状复合种植的带型设置,分析4种模式下大豆玉米带状复合种植的优势和经济效益。于2019—2022年扎赉特旗科技示范园区好力保镇五道河子村设置了大豆玉米带状复合种植2:2模式、4:4模式、6:4模式、4:2模式的带型设计,大豆产量与每公顷的株数呈显著正相关。与单种玉米相比,4:4模式每公顷最多增收246.9元;与单种大豆相比,4:2模式每公顷最多增收11707.65元。从田间表现看,2:2模式大豆倒伏相对较重,不适宜机械化作业,4:4模式和现有农机具配套,利于机械化作业,各种带型玉米带没有达到理想密度,大豆带密度较大,对试验结果有一定影响,通过对比分析得出,最适宜扎赉特旗地区推广的大豆玉米复合种植模式为4:2模式。

The purpose of this paper is to explore the most suitable belt type of soybean corn composite planting in Jalaid Banner area,and analyze the advantages and economic benefits of four models of soybean corn belt composite planting.The belt designs of 2:2 mode,4:4 mode,6:4 mode and 4:2 mode of soybean corn belt composite planting had been set up in Wudaohezi Village,Haolibao Town,Jalaid Banner Science and Technology Demonstration Zone from 2019 to 2022.The soybean yield was significantly positively correlated with the number of plants per hectare.Through economic benefit analysis,compared with single planting corn,the 4:4 mode had a maximum income increase of 246.9 yuan per hectare;compared with single soybean,the 4:2 mode had a maximum increase of 11707.65 yuan per hectare in income.From the field performance,the lodging of soybean in 2:2 mode was relatively heavy,which was not suitable for mechanized operation.The 4:4 mode was matched with the existing agricultural machinery,which was conducive to mechanized operation.Various belt types of corn belt did not reach the ideal density,and the density of soybean belt was high,which had a certain impact on the test results.Through comparative analysis,it is concluded that the most suitable soybean corn composite planting mode for promotion in Jalaid Banner is the 4:2 mode.