黑龙江八一农垦大学学报2011，Vol.23Issue(4)：15-19,5.
寒地水稻磷素适宜施用量的研究
The Study on Reasonable Dosage of Phosphate Fertilization in Paddy in Cold Areas
刘海涛 1童良军 2赵立琴 3王玉良4
作者信息
- 1. 黑龙江省农垦总局建三江分局大兴农场,富锦156300
- 2. 建三江分局二道河农场
- 3. 黑龙江八一农垦大学
- 4. 北大荒农业股份有限公司七星种子公司
- 折叠
摘要
Abstract
The reasonable dosage of P2O5 in Paddy in Cold Areas is studied by the comparative method and random block design,The cultivar used was kongyu 131,which was transplanted at 30×13.3 cm spacing in plots of 3×10 m.The results showed that the amount of P2O5 provided by the soil was 58.7 kg·hm-2 when available phosphorus of tested soil was 22~26 mg·kg-1,which can meet the rice conventional production with lower utilization rate of phosphorus fertilizer,poorer economic returns,lower output investment ratio.The amount of P2O5 on the best production were 19.4 and 26.4 kg·hm-2 respectively in two years,which was only about 35% of agricultural production in the present.For production,fertility equal or higher soil accounts for about 90%,thus,phosphorus dosage must be reduced to make huge saving space of phosphate.关键词
水稻/磷肥/施用量/经济效益Key words
paddy/phosphate/the dosage/economic benefits分类
农业科技引用本文复制引用
刘海涛,童良军,赵立琴,王玉良..寒地水稻磷素适宜施用量的研究[J].黑龙江八一农垦大学学报,2011,23(4):15-19,5.
