| 滴灌条件下不同施肥处理对马铃薯水分和肥料利用率的影响 |
| |
| 引用本文： | 张洋,张荣.滴灌条件下不同施肥处理对马铃薯水分和肥料利用率的影响[J].黑龙江农业科学,2014(12):46-51. |
| |
| 作者姓名： | 张洋 张荣 |
| |
| 作者单位： | 青海省农林科学院土壤肥料研究所,青海西宁,810016 |
| |
| 基金项目： | 青海省科技厅资助项目(2012-N-164) |
| |
| 摘 要： | 为探讨干旱区农业发展新途径,研究在滴灌条件下不同施肥处理对马铃薯产量、产量构成要素、水分利用效率和肥料利用率的影响。结果表明:N3P2K2(N 326.25kg·hm-2,P2O5138kg·hm-2,K2O 90kg·hm-2)处理下马铃薯株高、大(中)薯数、单株薯重明显提高,小薯数明显降低。在N3P2K2处理下马铃薯产量达到最高,达61 516kg·hm-2。施氮量217.50kg·hm-2处理下,氮肥利用率最高为39.31%;施磷量69kg·hm-2处理下,磷肥利用率最高为16.09%;施钾量45kg·hm-2处理下,钾肥利用率最高为64.67%。N3P2K2处理下水分利用率明显提高,达到了80.17kg·hm-2·mm-1。
|
| 关 键 词： | 滴灌 干旱区 水分利用率 肥料利用率 |
Effect on Water Use Efficiency and Fertilizer Utilization Rate of Potato of Different Fertilizer Treatments Under Drip Irrigation |
| |
| ZHANG Yang
,
ZHANG Rong.Effect on Water Use Efficiency and Fertilizer Utilization Rate of Potato of Different Fertilizer Treatments Under Drip Irrigation[J].Heilongjiang Agricultural Science,2014(12):46-51. |
| |
| Authors: | ZHANG Yang ZHANG Rong |
| |
| Institution: | (Soil and Fertilizer Institute, Qinghai Academy of Agricultural Forestry Sciences, Xining, Qinghai 810016) |
| |
| Abstract: | In order to explore a new way of agricultural development in arid area,the effect of different fertilizer treatments on potato yield,yield components,water use efficiency,and fertilizer utilization rate under drip-irrigation was researched.The results showed that plant height,number of big（middle）potato and potato weight per plant increased significantly and the number of small potato decreased obviously under N3P2 K2（N326.25kg·hm-2,P2O5138kg·hm-2,K2 O 90kg·hm-2）treatment.Potato yield reached the highest level under N3P2K2 treatment which was 61 516kg·hm-2.Application N of 217.50kg·hm-2 was the highest utilization rate of nitrogen which was 39.31%.Application P of 69kg·hm-2 was the highest utilization rate of phosphate which was 16.09%.Application K of 45kg·hm-2 was the highest utilization rate of potash for 64.67%.Water use efficiency was obviously improved under N3P2K2 treatment and reached 80.17kg·hm-2·mm-2. |
| |
| Keywords: | drip-irrigation arid region water use effficiency fertilizer utilization rate |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
