柑橘“绿肥+自然生草”种植模式及替代化肥效果评价

Planting Model of 'Green Manure+Native-growing Grass' and Evaluation of Effect of Substituting Fertilizer in Citrus Production

顺昌柑橘推广"绿肥(紫云英)+自然生草"种植模式,每年每667m2可提供N 15.18kg,其中绿肥(紫云英)提供N 7.17kg,可替代25.6%化肥氮;每年每667m2可提供有机质727.8kg,每年耕层有机质可增加1.21g·kg-1;且在增产和提升果实品质等方面都有显著效果。

The planting mode of‘green manure(astragalus)+native-growing grass’was popularized on Citrus in Shunchang,which can provide N 15.18 kg per 667 m 2 per year,among which the green manure(astragalus)provides N 7.17 kg and can substitute 25.6%of fertilizer nitrogen.Also this mode could provide organic matter 727.8 kg per year with the increase of 1.21 g·kg-1 per year in the tillage layer,and had significant effect in increasing yield and fruit quality.