松嫩平原西部粮草轮作技术途径与效应的研究

STUDIES ON THE TECHNOLOGICAL WAYS AND EFFECT OF THE GRAIN-GRASS ROTATION IN THE WEST REGION OF SONGNEN PLAIN

松嫩平原西部分布着大面积沙化盐化的中低产耕地土壤,根据当地草木樨第二年的鲜草的数量与质量都好于当年的特点,实行小麦与草木樨混播,次年翻压绿肥复种大豆,第三年种玉米或杂粮。三年粮肥轮作试验取得了不占季发展绿肥而改土培肥增产增收的效果。

There are large area of desertification and salinity fields which are low yield in the west region of Songnen Plain.Mixed sowing the field with wheat and sweet clover then next year turning under green manure soja bean is sowed,because of the number and quality of the green grass yield of local sweet clover are better in the next year than this year.The third year corn or minor cereal crops were sowed the field.