摘要
通过５种不同土壤的水稻盆栽试验、土壤培育试验和幼苗试验，对锡宝牌生物钾肥（钾细菌肥，下同）的解钾和解磷效果进行了研究。结果表明：（１）盆栽水稻在不施任何肥料情况下，土壤中缓效钾转化为有效态钾是水稻钾素营养的主要给源；（２）在两期水稻幼苗试验中，生物钾处理的水稻，其植株中钾和磷的含量均未见明显增加；（３）在淹水培育环境下，生物钾肥对土壤中难溶性钾的分解效力不高，土壤钾素的有效化过程不明显。
The efficiency of 'Xibao brand'biological K fertilizer(bacterial K fertilizer)indecomposing insoluble K or P compound into plant-available K or P compound was studiedthrough rice pot culture,soil incubation and rice shoot culture tests with 5 types of soils. Thetest results show that in case of rice pot culture without applying any fertilizer,the availableK transformed from slowly available K in soil is the main K nutrition source of rice ;in thetwo rice shoot culture tests,the K,P levels in rice plants in the treatment with biological Kfertilizer are not significantly increased;in case of flooded culture,the efficiency of biologicalK fertilizer in decomposing soil insoluble K compound is not high and the process of transforming unavailable K into available K in soil is not obvious.
出处
《上海农业学报》
CSCD
1999年第1期63-68,共6页
Acta Agriculturae Shanghai
关键词
生物钾肥
解钾
解磷
肥效
Biological K fertilizer
Decomposition of insoluble K compound
Decomposition of insoluble P compound
Efficiency of fertilizer
