论文部分内容阅读
为了解决季节矛盾,确保玉米全苗、匀苗、壮苗,力争玉米早熟高产,以往秋玉米一般均采用常规育苗移植,但推广杂交玉米以后,由于杂交玉米一般苗势较差,播种在高温、天晴地燥的7月中下旬,进行常规育苗移植,特别是在苗令较长的情况下,保苗十分困难。若用方格育苗,能解决以上问题。1977年我们公社春配杂交玉米塘泥方格育苗面积达70%,秋
In order to solve the contradiction of the season, to ensure corn seedlings, uniform seedlings, strong seedlings, and strive to produce high yield early corn, the previous autumn corn are generally used conventional seedling transplant, but the promotion of hybrid corn, corn hybrids generally poor seedling, sowing at high temperatures, Finely dry in late July, the conventional nursery transplant, especially in the case of longer seedlings, seedlings is very difficult. If the box nursery, can solve the above problems. In 1977, our commune spring with corn pond square grid nursery area of 70%, autumn