| 南安市花生氮磷钾推荐施肥指标研究 |
| |
| 引用本文： | 戴树荣,洪彩(誌). 南安市花生氮磷钾推荐施肥指标研究[J]. 福建农业学报, 2010, 25(4) |
| |
| 作者姓名： | 戴树荣 洪彩(誌) |
| |
| 作者单位： | 福建省南安市土壤肥料技术站,福建,泉州,362300 |
| |
| 基金项目： | 国家测土配方施肥项目 |
| |
| 摘 要： | 在南安市花生主产区土壤养分条件下,研究氮磷钾对花生的增产效应以及推荐施肥指标,结果表明:氮磷钾增产效果为NPK,施肥效益为NKP,氮磷钾产投比分别为6.2、3.8和4.0。土壤速效养分含量与相应肥料利用率呈现负相关。土壤碱解氮、有效磷和速效钾低肥力等级临界指标含量分别为65mg.kg-1、14.8 mg.kg-1、36 mg.kg-1;土壤碱解氮、有效磷和速效钾的高肥力等级临界指标分别为120 mg.kg-1、52.6 mg.kg-1、133 mg.kg-1。氮磷钾推荐施肥量随土壤碱解氮、有效磷、速效钾含量的提高而减少,花生平均最高产量施N量为96.3±17.5 kg.hm-2,N∶P2O5∶K2O为1∶0.53∶1.29,经济施N量85.9±19.6 kg.hm-2,N∶P2O5∶K2O为1∶0.51∶1.25。
|
| 关 键 词： | 花生 氮磷钾 产量 养分丰缺指标 |
Recommendation for peanut fertilization in Nanan |
| |
| DAI Shu-rong,HONG Cai-zhi. Recommendation for peanut fertilization in Nanan[J]. Fujian Journal of Agricultural Sciences, 2010, 25(4) |
| |
| Authors: | DAI Shu-rong HONG Cai-zhi |
| |
| Affiliation: | DAI Shu-rong,HONG Cai-zhi(Soil and Fertilizer Technology Station in Nanan,Quanzhou,Fujian 362300,China) |
| |
| Abstract: | NPK fertilization is important in order to increase the crop yield and income for peanut farmers in Nanan with its existing soil conditions.Effect of fertilizer application on yield were found to be N > P>K,and the fertilization benefit N>K>P.The output/input ratio of N,P2O5 and K2O were 6.2,3.8 and 4.0,respectively.There was a negative correlation between the available NPK in soil and the nutrient utilization.The critical indices of low effective phosphorus content of critical index on alkali-hydrolyzable ... |
| |
| Keywords: | Peanut NPK yield critical index |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
