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湖北省广济县石佛寺公社陈德荣大队从1972年种植甘兰型油菜以来,做到了大面积平衡增产。1978年全大队620亩油菜,单产比1977年增加45.6%,其中第四生产队117亩油菜,单产达到259斤。陈德荣大队油菜高产的一条重要经验,是他们对油菜采取了壮苗先壮根的栽培技术。一、壮根的作用油菜生长发育靠根系供应养分,因壮根是植株地上部生长的基础。壮根就是主根发达,细根、支
Chen Shirong Brigade, Shifosi commune, Guangji County, Hubei Province Since planting Brassica napus in 1972, a large area has been balanced and increased. In 1978, the whole group of 620 mus of rape, yield increased 45.6% over 1977, of which the fourth production team 117 acres of rapeseed, yield reached 259 pounds. An important experience of the high production of rapeseed by the team of Chen Derong was that they adopted the cultivation technology of strong roots and strong roots for rapeseed. First, the role of strong roots Rape growth and development by the root supply of nutrients, because of strong roots is the basis of plant growth. Strong root is the main root developed, fine roots, branch