摘要
用自行分离出的5株解磷细菌制成液体菌剂,进行小油菜盆栽试验。结果表明,使用解磷细菌可使小油菜明显增产,其中溶磷菌12-7和解磷菌y9-4增产幅度较大,其次为溶磷菌5-2。作物收获后,土壤速效磷含量变化较大,使用溶磷菌12-7和解磷菌y9-4的土壤速效磷含量降低较少,比对照变化值少23.4%和34.8%。解磷细菌对土壤pH和全磷含量影响不明显。试验表明,溶磷菌12-7、5-2和解磷菌y9-4是青海省石灰性土壤中使用效果较好的菌种。
Phosphorus bacteria inoculum prepared from phosphorus dissolving bacteria strains which were separated by our group was used for rape pot experiment. The results showed that phosphorus dissolving bacteria could significantly increase the yield of rape. Phosphorus-solubilizing bacteria strain 12-7 and y9-4 improved the production mostly, followed by strain 5-2. After harvesting, soil a- vailable-P content changed widely. The content of soil available-P was decreased on the condition of phosphorus-solubilizing bacteria 12-7 and phosphorus bacteria y9-4, less than the control change value of 23.4%and 34.8%. P-Solubilizing bacteria had no obvious effect on soil pH and total phosphorus. Tests showed that phosphorus-solubilizing bacteria 12-7, 5-2 and phosphorus bacteria y9-4 were better strains used in calcareous soil in Qinghai.
出处
《西北农业学报》
CAS
CSCD
北大核心
2014年第7期197-200,共4页
Acta Agriculturae Boreali-occidentalis Sinica
基金
青海省农业科技成果转化项目(2012-N-516)
科技部农业科技成果转化项目(2012GB2G200472)
青海省农林科学院院创新基金(2011-NKY-04)
国家科技支撑项目(2012BAC08B06)
关键词
解磷细菌
小油菜
产量
土壤磷含量
PH
P-solubilizing bacteria
Rape
Yield
Content of soil P
pH
