Abstract:
Two technical models of "six row of soybean+four row of maize" and "four row of soybean+two row of maize" were selected to carry out the experiment of row spacing and variety matching of soybean maize zonal composite planting technology. The results showed that under the model of "6 rows of soybean +4 rows of maize", the combination of maize variety MC121 with 60 cm row spacing and soybean variety Wandou 37 with 30 cm row spacing was the best economic benefit. In the mode of "4 rows of soybean +2 rows of maize", the combination of maize variety Dika 517 with 40 cm row spacing and soybean variety Jindou 99 with 25cm row spacing is the best economic benefit. The experiment can provide support for the promotion of local soybean and maize belt composite planting technology.