摘要
用巴西固氮螺菌菌肥对小麦“云麦29”拌种进行了田间实验。对照折合每亩施有机肥1000公斤、尿素10公斤、过磷酸钙50公斤作为基肥。处理1将有机肥和尿素减少1/2,处理2减少3/4,处理3施基肥与对照相同。结果表明,处理1小麦增产23％,收割后比播种前土壤含氮量折合每亩增加41.6公斤;处理2粮食增产14％,土壤含氮量增加41.8公斤;处理3增产5.8％,土壤含氮量增加22.8公斤。
Yunmai 29', a winter wheat variety of Yunnan was tested for its yield and soil total N response to inoculation with azospirillum brasilense.The normal quantity of base fertilizer (1000kg manure; 10kg urea; 50kg calcium superphosphate per mu) was applied to the subsoil as control of the test. The quantity of the manure and urea were decreased to a half in treatment l.one fourth in treatment 2. It was same as the control in treatment 3. The results were observed that the inoculation of azotobacter increased by 23 percent in grain yield of the wheat and 41.6kg of per N per mu soil in treatment 1; 14 percent in grain yield and 41.8kg per N per mu soil in treatment 2; 5.3 percent and 22,8kg in treatment 3.
出处
《贵州农业科学》
CAS
1993年第2期29-31,共3页
Guizhou Agricultural Sciences
关键词
小麦
固氮螺菌
拌种
azospirillum brasilence
wheat
inoculation
