The Effect of Cover Crops on Soil Water Balance in Rain-Fed Conditions

被引：34
作者：
Krstic, Dorde [1 ]
Vujic, Svetlana [1 ]
Jacimovic, Goran [1 ]
D'Ottavio, Paride [2 ]
Radanovic, Zoran [3 ]
Eric, Pero [1 ]
Cupina, Branko [1 ]
机构：
[1] Univ Novi Sad, Fac Agr, Novi Sad 21000, Serbia
[2] Univ Politecn Marche, Dept Agr Food & Environm Sci, I-60131 Ancona, Italy
[3] Chem Agrosava, Novi Beograd 11070, Serbia
来源：
ATMOSPHERE | 2018年 / 9卷 / 12期
基金：
欧盟地平线“2020”;
关键词：
cover crops; soil; water storage; silage maize; AGRICULTURAL INTENSIFICATION; NITROGEN MANAGEMENT; CROPPING SYSTEM; ORGANIC-CARBON; YIELD; MIXTURES; BENEFITS; IMPACTS; DROUGHT; STORAGE;
D O I：
10.3390/atmos9120492
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Soil and water conservation benefits of cover crops have been hypothesized as a way to mitigate and adapt to changing climatic conditions, but they can also have detrimental effects if rainfall is limited. Our objective was to quantify effects of winter cover crops on soil water storage and yield of silage maize under the agro-ecological conditions within Vojvodina Province in Serbia. The experiment was conducted under rain-fed conditions at three locations and included a control (bare fallow) plus three cover crop and two N rate treatments. The cover crop treatments were common vetch (Vicia sativa L.), triticale (x Triticosecale Wittm. ex A. Camus) and a mixture of the two species. All were managed as green manure and subsequently fertilized with either 120 or 160 kg N ha(-1) before planting silage maize (Zea mays L.). Cover crop effects on soil water storage were calculated for two periods, March-May and May-September/October. A Standardized Precipitation Index (SPI) used to characterize drought severity for 2011/2012 and 2012/2013, showed values of 3 and 9, respectively, for the two periods. Soil water storage was reduced by all cover crop treatments, with the greatest deficiency occurring during the extremely dry year of 2012. Previous studies have shown cover crop growth reduced by soil water depletion during their growing season and negative effects on early-season growth and development of subsequent cash crops such as silage maize, but if rainfall is extremely low it can also reduce cash crop yield. This detrimental effect of cover crops on soil water balance was confirmed by correlations between soil water storage and maize silage yield.
引用
收藏
页数：18
相关论文
共 44 条
[1]   Soil and human security in the 21st century [J].
Amundson, Ronald ;
Berhe, Asmeret Asefaw ;
Hopmans, Jan W. ;
Olson, Carolyn ;
Sztein, A. Ester ;
Sparks, Donald L. .
SCIENCE, 2015, 348 (6235)
[2]   Soil water improvements with the long-term use of a winter rye cover crop [J].
Basche, Andrea D. ;
Kaspar, Thomas C. ;
Archontoulis, Sotirios V. ;
Jaynes, Dan B. ;
Sauer, Thomas J. ;
Parkin, Timothy B. ;
Miguez, Fernando E. .
AGRICULTURAL WATER MANAGEMENT, 2016, 172 :40-50
[3]  
Belic M, 2013, CARPATH J EARTH ENV, V8, P171
[4]  
Clark Andy., 2008, Managing Cover Crops Profitably, V3rd, P248
[5]  
Cupina B., 2013, Agriculture and Forestry, V59, P55
[6]   Winter cover crops as green manure in a temperate region: the effect on nitrogen budget and yield of silage maize [J].
Cupina, B. ;
Vujic, S. ;
Krstic, Dj. ;
Radanovic, Z. ;
Cabilovski, R. ;
Manojlovic, M. ;
Latkovic, D. .
CROP & PASTURE SCIENCE, 2017, 68 (10-11) :1060-1069
[7]  
Cupina B, 2011, AUST J CROP SCI, V5, P839
[8]  
Daniel A., 2015, Changes in extreme precipitation events over the central United States in AOGCM-driven regional climate model simulations
[9]   The effect of cover crop and crop rotation on soil water storage and on sorghum yield [J].
De Azevedo, DMP ;
Landivar, J ;
Vieira, RM ;
Moseley, D .
PESQUISA AGROPECUARIA BRASILEIRA, 1999, 34 (03) :391-398
[10]   Nitrogen management strategies to reduce nitrate leaching in tile-drained midwestern soils [J].
Dinnes, DL ;
Karlen, DL ;
Jaynes, DB ;
Kaspar, TC ;
Hatfield, JL ;
Colvin, TS ;
Cambardella, CA .
AGRONOMY JOURNAL, 2002, 94 (01) :153-171
12345