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首页> 外文期刊>Agricultural Water Management >The influence of different tillage practices on water content of soil and crop yield in vetch-winter wheat rotation compared to fallow-winter wheat rotation in a high altitude and cool climate
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The influence of different tillage practices on water content of soil and crop yield in vetch-winter wheat rotation compared to fallow-winter wheat rotation in a high altitude and cool climate

机译：与高原和凉爽气候条件下秋冬小麦轮作相比，不同耕作方式对v秋冬小麦轮作土壤水分和作物产量的影响

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Fallow-winter wheat crop rotation under conventional tillage conditions is an agricultural system widely used in semi-arid regions. Water content of soil required for seed germination and plant growth can be improved performing tillage practices. Moreover, a crop rotation allowing sustainable and continuous production can be created. Therefore, the effect of four different tillage practices in a Hungarian vetch-winter wheat crop rotation (CR1) compared to fallow-winter wheat crop rotation (CR2) for water use efficiency was investigated in a semi-arid region with a high altitude (similar to 1750 m a.s.l.) for three years (2011-12, 2012-13 and 2013-14). Tillage practices consisted of; TS1: Conventional tillage (moldboard plough + cultivator + combined harrows + precision seeder); TS2: Reduced tillage-1 (cultivator + combined harrows + precision seeder); TS3: Reduced tillage-2 (rotary power harrow + precision seeder) and TS4: No-tillage (no-till seeder). Experiment was conducted applying randomized complete block design based on split-plot trial plan. The water content of soil in the CR1 was higher than the contents in the CR2. The TS4 practice significantly increased (P 0.01) the water content of soil in all measurement periods (sowing, winter, spring, harvesting and the whole year) and in soil layers (0-30 cm, 30-60 cm and 60-90 cm) compared to the other tillage practices. Water contents of soil were the lowest in the TS1. For the 0-30-cm depth, compared to the TS1 practice, the TS4 practice provided higher water contents of soil by 21.3, 22.1, 14.4, 15.7 and 17.4% in sowing, winter, spring, harvesting and the whole year periods, respectively. Water contents in 30-60 and 60-90 cm soil layers in the TS4 practice also were higher than the TS1 practice values. Higher water contents of soil of the sowing period in TS4 provided higher stand density. Although the amount of weeds in winter wheat plots was the highest in the TS4 practice (67.4 kg ha(-1)) when considering three-year average values, grain yield in TS4 was also high (2652 kg ha(-1)) and statistically similar to TS1 (2762 kg ha(-1)). There was no clear effect on water use efficiency of winter wheat of the no-tillage practice compared to conventional tillage practice. Stand density and fodder yield of vetch were the highest in TS4. Our results indicated that the no-till vetch-winter wheat rotation could be more suitable than the conventional tilled fallow-winter wheat rotation due to the opportunity of high crop production in semi-arid regions. (C) 2015 Elsevier B.V. All rights reserved.
机译：常规耕作条件下的秋冬小麦轮作是半干旱地区广泛使用的一种农业系统。进行耕作可提高种子发芽和植物生长所需的土壤水分。此外，可以创建允许可持续和连续生产的作物轮作。因此，在高海拔的半干旱地区，研究了四种v耕方式在匈牙利紫etch冬小麦轮作（CR1）与休闲冬小麦轮作（CR2）相比对水分利用效率的影响。至3年（2011-12、2012-13和2013-14）。耕作方式包括： TS1：常规耕作（mol刨犁+中耕机+组合耙+精密播种机）; TS2：减少耕种1（耕地机+联合耙+精密播种机）; TS3：减少耕作2（旋耕耙+精密播种机）和TS4：免耕（免耕播种机）。应用基于分割图试验计划的随机完整块设计进行实验。 CR1中的土壤水分含量高于CR2中的土壤水分含量。在所有测量时期（播种，冬季，春季，收获和全年）和土壤层（0-30厘米，30-60厘米和60-90厘米）中，TS4做法均显着增加（P <0.01）土壤含水量厘米）相比其他耕作方式。 TS1中的土壤水分最低。对于0-30厘米深度，与TS1耕作相比，TS4耕作在播种，冬季，春季，收获和全年期间分别提供较高的土壤含水量21.3％，22.1％，14.4％，15.7％和17.4％。 。 TS4实践中30-60和60-90 cm土层中的水分含量也高于TS1实践值。 TS4播种期土壤水含量越高，林分密度越高。尽管考虑三年平均值，冬小麦田中杂草的数量在TS4实施中最高（67.4 kg ha（-1）），但TS4中的谷物产量也很高（2652 kg ha（-1）），统计上类似于TS1（2762 kg ha（-1））。与常规耕作相比，免耕对冬小麦的水分利用效率没有明显影响。紫etch的林分密度和饲料产量在TS4中最高。我们的结果表明，由于半干旱地区有高产的机会，免耕v菜冬小麦轮作可能比常规耕种休耕冬小麦轮作更合适。 （C）2015 Elsevier B.V.保留所有权利。

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