|
|||||
|
|
| 高磷土壤施用磷肥对小白菜和苋菜产量及肥料利用率的影响 | |
| 引用本文： | 梁林洲,沈仁芳,伊晓云,陈志长,赵学强. 高磷土壤施用磷肥对小白菜和苋菜产量及肥料利用率的影响[J]. 江苏农业学报, 2010, 26(1) |
| 作者姓名： | 梁林洲 沈仁芳 伊晓云 陈志长 赵学强 |
| 作者单位： | 1. 中国科学院南京土壤研究所土壤与农业可持续发展国家重点实验室,江苏,南京,210008;中国科学院研究生院,北京,100049 2. 中国科学院南京土壤研究所土壤与农业可持续发展国家重点实验室,江苏,南京,210008 |
| 基金项目： | 中国科学院知识创新工程重要方向项目(KSCX2-YW-N-002);;国家科技支撑项目(2006BAD05B08) |
| 摘 要： | 采用土培试验,在高磷(O lsen-P为117 mg/kg土)条件下种植小白菜和苋菜,施用0 mg/kg,50 mg/kg,100 mg/kg,200 mg/kg,400 mg/kg磷肥(P2O5),探讨高磷土壤施用磷肥对小白菜和苋菜产量及肥料利用率的影响。结果表明:与不施用磷肥相比,在高磷土壤上施用50 mg/kg,100 mg/kg,200 mg/kg磷肥(P2O5)并未提高小白菜和苋菜产量,施用400 mg/kg磷肥(P2O5)对小白菜有显著增产效果,但对苋菜没有增产效果;随磷肥施用量的增加,小白菜和苋菜地上部磷积累量都有增加的趋势,施用400 mg/kg磷肥(P2O5)处理小白菜和苋菜地上部磷积累量均最高,且分别显著高于对应的不施用磷肥处理;小白菜各施磷肥处理间磷肥利用率均没有显著差异,施用50 mg/kg磷肥(P2O5)处理的磷肥利用率为6.70%,小白菜其它施磷肥处理和苋菜的所有施磷肥处理磷肥利用率均低于5.00%;随着磷肥施用量的增加,小白菜体内磷利用效率下降;与不施磷肥处理相比,各施磷肥处理苋菜体内磷素利用效率没有下降。 |
| 关 键 词： | 高磷土壤 磷肥 小白菜 苋菜 磷肥利用率 磷利用效率 |
Effects of Phosphate Fertilizer Application in High Phosphorus Soil on Yield and Phosphorus Fertilizer Uptake Efficiency of Pak Choi and Amaranth |
|
| LIANG Lin-zhou,,SHEN Ren-fang,YI Xiao-yun ,CHEN Zhi-chang,ZHAO Xue-qiang. Effects of Phosphate Fertilizer Application in High Phosphorus Soil on Yield and Phosphorus Fertilizer Uptake Efficiency of Pak Choi and Amaranth[J]. Jiangsu Journal of Agricultural Sciences, 2010, 26(1) | |
| Authors: | LIANG Lin-zhou SHEN Ren-fang YI Xiao-yun CHEN Zhi-chang ZHAO Xue-qiang |
| Affiliation: | 1.State Key Laboratory of Soil and Sustainable Agriculture/a>;Institute of Soil Science/a>;Chinese Academy of Sciences/a>;Nanjing 210008/a>;China/a>;2.Graduate School of Chinese Academy of Sciences/a>;Beijing 100049/a>;China |
| Abstract: | A pot culture experiment was conducted with different contents(0 mg,50 mg,100 mg,200 mg and 400 mg in 1 kg soil) of phosphorus fertilizer(P2O5) to determine the yield and phosphorus fertilizer uptake efficiency of pak choi and amaranth in high phosphorus testing soil with an olsen-P of 117 mg/kg.The results showed no evident increase in yield of pak choi and amaranth at phosphorus fertilizer(P2O5) of 50 mg,100 mg,200 mg,compared to the control.At P2O5 400 mg/kg,pak choi's yield had significant increase,whil... |
| Keywords: | high phosphorus soil phosphorus fertilizer pak choi amaranth phosphorus fertilizer uptake efficiency phosphorus utilization efficiency |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |