滨海盐渍土壤苜蓿保苗技术的研究

STUDY ON THE TECHNIQUE OF KEEPING A FULL STAND OF SEEDLINGS OF ALFALFA IN COASTAL SALINIZED SOIL

对于滨海中度盐化土壤，在夏末秋初表层盐分低于其他季节的时期，整地开沟１０～１５ｃｍ播种苜蓿（Ｍｅｄ－ｉｃａｇｏｓａｔｉｖａＬ．）可基本上保证其正常出苗和生长。另外，苜蓿与油菜（ＢｒａｓｓｉｃａｃａｍｐｅｓｔｒｉｓＬ．）混播也可提高苜蓿的保苗率。

For coastal middle level salinized soil, the salt concentration on soil’s surface is lower in late summer and early autumn.In this period,preparing for soil gutterring by10～15cm in deep and planting alfalfaCould assure normal rate of emergence and growing.In addition,mixed sowing alfalfa with rape could in-crease survival rate of Seedlings.