多年来的试验和生产实践表明:土壤中磷素含量高低是影响柽麻压青增产效果的关键之一。如在缺磷土壤上压青必须结合施磷,否则不仅当季增产不显,甚至还可能减产。即使在不太缺磷的土壤上压青,也需配合施用磷肥。这是因为,柽麻吸磷能力特别强,在生长期中大量吸收土壤中的磷素养分,压青后 Tests and production practices over the years show that: the level of phosphorus in soil is one of the key factors that affect the yield of pressed flax. As in the lack of phosphorus on the grass green pressure must be combined with phosphorus, or not only not increase the season seasonal significant output may even be reduced. Even in the soil is not less phosphorus on the green pressure, but also with the application of phosphate fertilizer. This is because, particularly high capacity of flammable phosphorus absorption, a large number of absorption in the growth of phosphorus in soil nutrients, after pressing