Reasonable intercropping can effectively use land and light energy and exert marginal resources. At present, in addition to winter soybeans, the following two forms should be promoted. (1) The young orchard orchard orchard soil fertility is not very high, and the effect of other intercropping plants is poor or unfavorable to fruit trees. If the early-maturing soybean varieties are used and the appropriate early sowing between the species, they can receive the effect of short-term growth and mutual promotion. (2) Wide-line corn intercroppings often have occasional flooded lands on both sides of the river. There is a certain risk of planting medium- and late-maturing crops. The risk of using broad-line maize intercroppings as early-spring maturing soybeans can be reduced. A reasonable line of business is often inconclusive, but according to the experience of the Institute of Agricultural Sciences in Zigong City, 2.5-2.67 meters in the car, and a narrow line of 0.5 meters in corn, the remaining wide line of 4 rows of soybeans works well.
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