施肥和混播对退化草地土壤和牧草产量的影响1
Effects of fertilization and mixed sowing on soil and pasture yield in degraded grassland
[目的]研究施肥和混播牧草对松嫩平原黑龙江省西部退化草地土壤养分和牧草产量的影响,探索本地区天然退化草地修复的最佳施肥量和牧草混播比例。[方法]试验以黑龙江省西部天然轻度退化草地为研究对象,设 6个水平氮磷钾施肥组合、2种豆禾牧草(沙打旺Astragalus adsurgens Pall.和披碱草Elymus dahuricus Turcz。)混播比例,探讨施肥和混播对土壤养分变化及对牧草产量的影响。[结果]在确定混播比例的情况下,施肥能显著提高…查看全部>>
[Objective]The effects of fertilization and mixed sowing on soil nutrients and pasture yield in degraded grassland of Songnen Plain in western Heilongjiang province were studied in order to determine the optimal amount of fertilization and the ratio of legume to grass in mixed sowing for restoration of natural degraded grassland in this area.[Methods]The experiment took the natural light degraded grassland in Songnen Plain of western Heilongjiang province as…查看全部>>
方玉凤;曹志伟;孙洪升;韩勤;闫敦梁;温宝阳;任秀彬;
S812.2
Songnen Plain degraded grassland fertilizer legume-grass mixed sowing soil nutrient pasture yield
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