【摘要】 １９９３～１９９７年在碳酸盐黑钙土上进行了化肥、有机肥、有机肥化肥配施的试验。结果表明，各施肥区均不同程度地改善了土壤理化性状，提高了作物产量。无肥区产量低而不稳，有下降趋势，且土壤肥力逐年下降。更多还原

【Abstract】 The fertilizer test was conducted with fertilizer, manure and fertilizer+manure on carbonate black calcium soil from 1993 to 1997. The results are as follows. The physical and chemical soil characters ere improved in every experimental plot, and the crop yield was increased in varying degrees. The crop yied of experimental plot without fertilizer (or manure) was lower and unstable and the soil fertility dropped year by year.更多还原