当年播种苜蓿的收获量往往比较低,一般在第二年或第三、四年的产量较高;尤其在当年播种后的第一次收割,由于根系生长比较细弱,地上部份的产量就不能提高。为此,如何提高当年播种苜蓿的收益问题,在农业技术上很有研究的必要。晋源农场在1955年试行了春小麦和苜蓿间播,从收获量上看,间播小麦的产量虽然比单种春小麦的产量稍低一些,但从土地的利用和它的经济价值来说, The annual harvest of alfalfa is often relatively low, usually in the second year or the third and fourth years of higher yields; especially after the first sowing in that year, due to the relatively weak root growth, the above-ground production can not improve. Therefore, how to improve the income of sowing alfalfa in the current year is very necessary in agricultural technology. Jinyuan Farm piloted spring wheat and alfalfa sowing in 1955. Although the yield of sowing wheat is slightly lower than the output of a single spring wheat from the point of view of the harvest, in terms of land utilization and its economic value,