| 孙克刚,李丙奇,和爱玲,金修哲.砂姜黑土区麦田土壤有效磷丰缺指标及推荐施磷量研究[J].干旱地区农业研究,2010,28(2):159~161 |
| 砂姜黑土区麦田土壤有效磷丰缺指标及推荐施磷量研究 |
| Abundance and deficiency indices of soil available P for wheat and fertilization recommendation in Shajiang black soil areas |
| |
| DOI：10.7606/j.issn.1000-7601.2010.02.33 |
| 中文关键词: 砂姜黑土区 麦田 土壤有效磷 丰缺指标 |
| 英文关键词:wheat ASI phosphorus abundance and deficiency indices |
| 基金项目:“十一五”国家科技支撑计划“华北小麦-玉米一体化施肥关键技术研究与示范”(2008BADA4B07)； 河南省科技厅攻关项目“小麦玉米一体化栽培、施肥简化优化措施研究”(092102110041)；国际植物营养研究所(IPNI)北京办事处资助项目 |
|
| 摘要点击次数: 497 |
| 全文下载次数: 348 |
| 中文摘要: |
| 2004～2008连续4年在砂姜黑土区布置小麦肥料效应田间试验。用ASI土壤分析方法对试验田基础土壤样品进行测试分析，并以缺磷素区（NK）比推荐施肥区(NPK)冬小麦相对产量＜50％，50%～65％，65%～75％，75%～95％和>95％为标准，分别将对应的土壤有效磷分成“极低”、“低”、“中”、“较高”和“高”5级。结果显示：砂姜黑土区土壤有效磷“极低”指标为<7 mg/L，“低”指标为7～12 mg/L，“中”指标为12～18 mg/L，“较高”指标为18～38 mg/L，“高”指标为＞38 mg/L。在上述五级指标下，推荐施磷量依次为：135、105、90、75 kg/hm2及不施或者微施磷肥。 |
| 英文摘要: |
| To provide theoretic support for formula fertilization in wheat production by soil testing in Shajiang black soil areas, field experiments on fertilizer efficiency of winter wheat were carried out. The study used ASI (Agro Services International) method to test soil samples and calibrate ASI soil test according to the typical response categories (50%, 65%，75% and 95% of relative yield to soil nutrient values) to establish the abundance and deficiency indices of soil available P for wheat in Shajiang black soil areas based on ASI soil testing and fertilizer recommendation. The very low, low, medium, high and very high indices for soil available P were ＜7 mg/L, 7～12 mg/L, 12～18 mg/L, 18～38 mg/L, and＞38 mg/L, respectively. This experiment suggested that the recommended fertilization rates were 135 kg/hm2, 105 kg/hm2, 90 kg/hm2 and 75 kg/hm2. When soil available P was＞38 mg/L, the fertilization rate can be very little or even not applied. |
| 查看全文 查看/发表评论 下载PDF阅读器 |