摘要
在赤红壤发育的旱坡地柑桔园开展不同有机无机肥料配施肥效试验,结果表明,与单施化肥相比,有机肥配施化肥能显著提高柑桔的产量和食用品质,其中沙糖桔增产率为16.3%～18.4%,年桔增产率为7.8%～16.4%。此外,施用有机肥处理能显著提高柑桔园土壤微生物量,在施用等氮量条件下,随着有机肥施用量的增加土壤微生物量碳和氮呈递增趋势,说明施用有机肥对柑桔园土壤微生物量碳和氮有显著的影响。
Orchard trials were carried out to investigate effects of different combinations of organic and inorganic fertilizers on sloping citrus with latosolic red soils in Guangdong. Results showed that, in comparison to only application of chemical fertilizers, combination of organic fertilizers and inorganic fertilizers significantly enhanced yields and improved quality of the fruits. The increasing rates were 16.3%-18.4% for the Shatangju and 7.8%-16.4% for the Nianju. In addition, application of organic fertilizers obviously increased microbial biomass in the soils. In condition of the same N rate, soil microbial C and N kept increasing with larger ratio of organic fertilizers, indicating that application of organic fertilizers could benefit the activity of soil microorganisms.
出处
《广东农业科学》
CAS
CSCD
2008年第7期65-67,共3页
Guangdong Agricultural Sciences
基金
"十一五"国家科技支撑计划重点项目(2006BAD25B08-2)
关键词
坡地柑桔同
有机肥
化肥
效应
sloping citrus
organic fertilizer
chemical fertilizer
effects
