Long-term yield and water use efficiency under various tillage systems in Mediterranean rainfed conditions

被引:82
作者
Cantero-Martinez, C.
Angas, P.
Lampurlanes, J.
机构
[1] Univ Lleida, Dept Prod Vegetal & Ciencia Forest, Lleida 25198, Spain
[2] Univ Lleida, Dept Ingn Agroforestal, Lleida 25198, Spain
关键词
conservation tillage; no tillage; water use; water use efficiency; winter cereal; winter crops; CONSERVATION TILLAGE; CROP-ROTATION; ROOT-GROWTH; SOIL; MANAGEMENT; BARLEY; WHEAT; ENVIRONMENT; STORAGE; REGION;
D O I
10.1111/j.1744-7348.2007.00142.x
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
Conservation tillage (CT) can be beneficial for soil, water and soil organic matter conservation in Mediterranean areas that are prone to soil erosion and where water availability for crops is the main factor for sustainability. CT is the best option to protect the soil from erosion, improve infiltration, reduce soil evaporation and so conserve rainwater to increase crop water use (WU) and also water use efficiency (WUE). While CT can play an important role in reaching the stability and sustainability of these agricultural systems, performance depends upon the choice and adoption of an appropriate soil management (tillage) system. In rainfed areas of the Ebro Valley, winter cereals are the main crop sown. This paper presents the results of 15 years of research in different soil and climatic conditions of the area of CT on water conservation, WU and WUE. Long-term experiments, comparing different tillage systems, were established in 1987, 1990 and 1992, at three locations in the Ebro Valley, chosen according to their degree of aridity (Selvanera, Agramunt and El Canos). Results reveal that CT was most effective in increasing yield under the driest conditions at Agramunt (10-15%), still effective with a smaller advantage under slightly wetter conditions at El Canos (5-10%) but ineffective at Selvanera, the wettest site. CT only increased WU in some years at Agramunt and never at the other two sites. The benefits of CT to both increased yield at Agramunt and El Canos were determined by improved WUE arising from changes in the pattern of WU before and after anthesis.
引用
收藏
页码:293 / 305
页数:13
相关论文
共 39 条
[1]  
[Anonymous], 1994, Keys to Soil Taxonomy
[2]  
[Anonymous], AGROCLIMATOLOGIA SEG
[3]  
[Anonymous], 1966, CLIMATES WORLD THEIR
[4]  
[Anonymous], IRRIGATION AGR CROPS
[5]   Yield-rainfall relationships in cereal cropping systems in the Ebro river valley of Spain [J].
Austin, RB ;
Cantero-Martinez, C ;
Arrue, JL ;
Playan, E ;
Cano-Marcellan, P .
EUROPEAN JOURNAL OF AGRONOMY, 1998, 8 (3-4) :239-248
[6]   Growth, yield and water productivity of barley (Hordeum vulgare L.) affected by tillage and N fertilization in Mediterranean semiarid, rainfed conditions of Spain [J].
Cantero-Martínez, C ;
Angas, P ;
Lampurlanés, J .
FIELD CROPS RESEARCH, 2003, 84 (03) :341-357
[7]  
CANTEROMARTINEZ C, 2005, TIERRAS, V117, P32
[8]  
CANTEROMARTINEZ C, 2004, MEDITERRANEAN RAINFE, V60
[9]   IMPROVING WATER-USE EFFICIENCY OF ANNUAL CROPS IN THE RAIN-FED FARMING SYSTEMS OF WEST ASIA AND NORTH-AFRICA [J].
COOPER, PJM ;
GREGORY, PJ ;
TULLY, D ;
HARRIS, HC .
EXPERIMENTAL AGRICULTURE, 1987, 23 (02) :113-&
[10]   THE INFLUENCE OF RAINFALL ON THE YIELD OF WHEAT IN SOUTH AUSTRALIA [J].
CORNISH, EA .
AUSTRALIAN JOURNAL OF SCIENTIFIC RESEARCH SERIES B-BIOLOGICAL SCIENCES, 1950, 3 (02) :178-218