论文部分内容阅读
光叶紫花苕子是长江流域的主要冬季绿肥品种之一。由于光叶苕子抗逆性强,适应性广,鲜草产量高、质量好,极受群众欢迎。但种子产量低,远不能满足迅速扩种的需要。 根据江苏省盐城专区多年来的试验和观察结果,苕子种子产量低的主要原因,是由于苕子匍匐性较强,封壠后,植株郁闭,在长江流域5月份多雨的情况下,往往造成土壤湿度过大,下部茎叶腐烂,光合作用减弱,因而形成大量的落花和不孕。近年来,在苕子留种田普遍提倡带播支架作物或搭支架,使苕子发挥攀缘生长的特性,充分地利用空
Light leaf Zizania caduci is one of the major winter green manure varieties in the Yangtze River basin. Due to the strong resistance to light leaf prickly heat, wide adaptability, fresh grass yield, good quality, very popular with the masses. However, the low seed yield far can not meet the needs of rapid expansion. According to the Yancheng Prefecture in Jiangsu Province over the years of tests and observations, the main reason for the low seed yield is because the stoloniferous prosthesis is strong. After the seal is closed, the plant is closed. In the case of the rainy May in the Yangtze River Basin, Resulting in soil moisture is too large, the lower stems and leaves rot, photosynthesis weakened, resulting in a large number of falling and infertility. In recent years, it is generally advocated in Shizi-stay farming that the sowing crops are supported or scaffolded so that the shizuoka can play the role of climbing growth and make full use of the space