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田菁是一年生豆科夏季绿肥,插种范围广,我们青浦县二年的试种结果表明,以后季稻秧田插种田菁效果最好。既能增加有机肥料,又能促进稻苗生长,提高秧苗素质,而且拔秧容易。去年,我们全县后季稻秧田插种田菁3929亩,今年要大面积推广应用。据我们观察,后季稻秧田插种田菁有以下几个作用: 1.提高秧苗素质田菁的根瘤菌能固定空气中的氮素,为后季稻秧苗的生长提供氮素营养,有利于培育壮秧。因此,无论田菁与秧苗共生时间长,还是共生时间短,插种田菁的秧苗素质都比对照好(见下表)。
Tian Jing is an annual leguminous summer green manure, a wide range of intercropping, our two years of Qingpu County, the results of the trial showed that after planting rice seedling Sesbania effect is best. Both to increase organic fertilizer, but also to promote the growth of rice seedlings, improve the quality of seedlings, and pull rice easy. Last year, our county after season rice seedling Tianjing 3929 acres, this year a large area to promote the application. According to our observations, the latter quarter of rice seedling Sesbania has the following effects: 1. To improve the quality of seedlings Sesbania rhizobium can fix nitrogen in the air for the growth of rice seedlings to provide later nitrogen nutrition is conducive to breeding Strong seedlings. Therefore, no matter the symbiosis of Sesbania and the seedlings is long or the symbiosis time is short, the quality of the Sesbana seedlings is better than that of the control (see table below).