中国土壤与肥料
中國土壤與肥料
중국토양여비료
SOIL AND FERTILIZER SCIENCES IN CHINA
2015年
3期
79-83
,共5页
万水霞%朱宏斌%唐杉%郭熙盛%王允青
萬水霞%硃宏斌%唐杉%郭熙盛%王允青
만수하%주굉빈%당삼%곽희성%왕윤청
紫云英%土壤微生物%微生物活度%土壤肥力
紫雲英%土壤微生物%微生物活度%土壤肥力
자운영%토양미생물%미생물활도%토양비력
Astragalus sinicus%soil microbes%soil microbial activity%soil fertility
在安徽沿江双季稻区，通过4年田间定位试验研究了不同用量紫云英绿肥与化肥配施对水稻产量、土壤肥力和土壤微生物数量及活度的影响。结果表明，施用紫云英绿肥比不施肥增产40．75%~92．10%，比单施化肥处理增产26．30%~36．49%；与纯施化肥相比较，施用紫云英处理的微生物总量增加了48．26%~115．78%，微生物活度增加了5．88%~29．41%，且施用紫云英土壤全 N、碱解 N、有效 P、速效 K 和有机质含量均较高。简单相关分析表明，土壤微生物特性与土壤全 N、碱解 N 之间具有极显著的相关性。施肥土壤有机质含量与细菌总数之间无直接相关性，而与真菌、放线菌数量及微生物活度正相关。土壤微生物及土壤养分分析发现，化肥量70%与紫云英22500 kg·hm -2配施比较适宜于安徽沿江双季稻区早稻生产。
在安徽沿江雙季稻區，通過4年田間定位試驗研究瞭不同用量紫雲英綠肥與化肥配施對水稻產量、土壤肥力和土壤微生物數量及活度的影響。結果錶明，施用紫雲英綠肥比不施肥增產40．75%~92．10%，比單施化肥處理增產26．30%~36．49%；與純施化肥相比較，施用紫雲英處理的微生物總量增加瞭48．26%~115．78%，微生物活度增加瞭5．88%~29．41%，且施用紫雲英土壤全 N、堿解 N、有效 P、速效 K 和有機質含量均較高。簡單相關分析錶明，土壤微生物特性與土壤全 N、堿解 N 之間具有極顯著的相關性。施肥土壤有機質含量與細菌總數之間無直接相關性，而與真菌、放線菌數量及微生物活度正相關。土壤微生物及土壤養分分析髮現，化肥量70%與紫雲英22500 kg·hm -2配施比較適宜于安徽沿江雙季稻區早稻生產。
재안휘연강쌍계도구，통과4년전간정위시험연구료불동용량자운영록비여화비배시대수도산량、토양비력화토양미생물수량급활도적영향。결과표명，시용자운영록비비불시비증산40．75%~92．10%，비단시화비처리증산26．30%~36．49%；여순시화비상비교，시용자운영처리적미생물총량증가료48．26%~115．78%，미생물활도증가료5．88%~29．41%，차시용자운영토양전 N、감해 N、유효 P、속효 K 화유궤질함량균교고。간단상관분석표명，토양미생물특성여토양전 N、감해 N 지간구유겁현저적상관성。시비토양유궤질함량여세균총수지간무직접상관성，이여진균、방선균수량급미생물활도정상관。토양미생물급토양양분분석발현，화비량70%여자운영22500 kg·hm -2배시비교괄의우안휘연강쌍계도구조도생산。
In double cropping rice areas along the Yangtze River in Anhui Province, a 4-year site-specific field experiment was carried out to investigate the effect of different amount of Astragalus sinicus with chemical fertilizers application on rice yield, soil fertility and the number and activity of microorganisms. Results showed that, under the application of Astragalus sinicus, the yield was increased by 40. 75% ~ 92. 10% than no fertilizer treatment and 26. 30% ~ 36. 49% than chemical fertilizer treat-ment. Compared with chemical fertilizers, when Astragalus sinicus was applied, the microbial amount increased by 48. 26% ~115. 78% , and microbial activity increased by 5. 88% ~ 29. 41% . In addition, the soil total N, available N, available P, available K and organic matter content were much higher. The results of correlation analysis revealed that there were significant positive correlations between microbial characteristics and soil total N and available N. The organic matter content was not di-rectly correlated to the numbers of bacteria but had a positive correlation with the numbers of fungi, actinomycetes and microbi-al activity. The results implied that combined application of 70% chemical fertilizer with 22 500 kg·hm - 2 Astragalus sinicus was more suitable for early rice production along the Yangtze river in Anhui.
