硅酸盐菌剂的应用效果及其解钾作用的初步研究  

Effects of application of silicate bacterium fertilizer and its potassium release

作　　者：盛下放[1] 黄为一[1] 殷永娴 

机构地区：[1]南京农业大学资源与环境科学学院,南京210095

出　　处：《南京农业大学学报》2000年第1期43-46,共4页Journal of Nanjing Agricultural University

摘　　要：通过盆栽试验、田间试验以及摇瓶试验研究了硅酸盐细菌NBT菌株的解钾作用以及对作物的增产效应。结果表明 ,盆栽试验中 ,以土壤作基质时 ,硅酸盐菌剂能将部分钾矿石转化为有效钾供辣椒植株利用 ,使其中的钾含量比对照增加 2 5 4% ;以钾长石和石英砂为基质时 ,水稻植株中的钾含量比对照增加 39 8%～ 2 71 8%。田间试验中 ,硅酸盐菌剂使棉花产量比对照增加 9 0 5 % ,经方差分析 ,其差异达显著或极显著水平。摇瓶条件下 ,硅酸盐细菌能通过破坏钾长石的晶格结构 ,使矿物中的钾释放出来 ,其含量比对照增加 37 3%～ 16 2 4%。Potassium release from soil and yield increase of crops by strain NBT of silicate bacterium were studied by pot,field and shake flask experiments.The results showed that potassium content of the plant was increased by 25 4%(soil culture)and 39 8% 271 8%(sand culture)compared to controls by changing the unavailable K of soil minerals into the available K for crops,yield of cotton was increased by 9 05% in field experiment.Under shake flask study,the structure of feldspar was decomposed that the K content in fermented fluid of strain NBT was in creased by 37 3% 162 4%.

关 键 词：原生矿物 释放 硅酸盐细菌 解钾作用 速效钾 

分 类 号：S144.9[农业科学—肥料学]