| 罗照霞,杨志奇,俄胜哲,袁金华,车宗贤,郭永杰.旱地不同施肥对冬油菜产量及土壤水分状况的影响[J].干旱地区农业研究,2017,35(5):164~168 |
| 旱地不同施肥对冬油菜产量及土壤水分状况的影响 |
| Effects of different fertilization on winter rapeseed yield and soil water in dry land |
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| DOI：10.7606/j.issn.1000-7601.2017.05.24 |
| 中文关键词: 施肥 旱地 冬油菜 产量 土壤水分 水分利用效率 |
| 英文关键词:fertilization dry-land rapeseed yield soil water water use efficiency |
| 基金项目:十二五国家科技支撑计划“中低产田障碍因子消减与地力提升共性关键技术研究”(2012BAD05B06)；甘肃省农业科学院农业科技创新专项，创新基地土壤肥料长期定位试验科研协作网建设(2013GAAS12) |
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| 中文摘要: |
| 研究了不同施肥处理下黄绵土区冬油菜产量、土壤水分状况及其水分利用效率的变化。结果表明：有机肥与化肥配施明显提高了冬油菜籽粒产量和水分利用效率，较不施有机肥平均提高了12.95%和10.74%；冬油菜产量以有机肥配施氮磷钾处理最高，为1 180.05 kg·hm-2，较对照（不施肥料）提高了369.32%，耗水量和水分利用效率也最高，分别为489.73 mm和2.41 kg·hm-2·mm-1，较对照分别提高了6.40%和338.18%；冬油菜收获后不同处理不同土层土壤含水量较播前大幅度下降，0～20 cm土层土壤含水量较播前下降了8个百分点左右，0～100 cm土层土壤储水量以不施肥处理最大，为244.36 mm。肥料配施提高了作物产量，但也增加了土壤耗水量，土壤干燥化程度也将加剧。 |
| 英文摘要: |
| A study on the effects of different fertilization conditions on the yield of winter rapeseed, soil water and water use efficiency was carried out in dry land of Loess Plateau. The results showed that the yield of winter rapeseed and water use efficiency were extremely increased in manure combined with chemical fertilizer, it was increased by 12.95% and 10.74% respectively compared to that without manure. The highest yield and soil water consumption and water use efficiency were 1 180.05 kg·hm-2 and 489.73 mm and 2.41 kg·hm-2·mm-1 under the MNPK treatment，compared to CK treatment，it was enhanced by 369.32% and 6.40% and 338.18% respectively. Of all the treatments, compared to that before sowing，soil water content decreased quickly under different treatments in different soil layers，soil water content decreased by about 8% in 0～20 cm soil layer after harvest，the soil water storage of 0～100 cm soil layer of CK treatment was highest which was 244.36 mm. Combined fertilizer could enhanced crop yield, but it also could increase water consumption at the same time, the soil appeared a dry trend. |
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