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Water-use efficiency of dryland wheat in response to mulching and tillage practices on the Loess Plateau.

Wang LF, Shangguan ZP - Sci Rep (2015)

Bottom Line: The sequence of water use efficiency (WUE) effect sizes was similar to that of wheat yield for the practices.Wheat yields were more sensitive to soil water at planting covered by plastic film, wheat straw, liquid film, water-permeable plastic film and sand compared to NT, ST and RT.This synthesis demonstrates that RFM was better for avoiding the risk of reduced production due to lack of precipitation; however, under conditions of better soil moisture, RT and MTMC were also economic.

View Article: PubMed Central - PubMed

Affiliation: 1] State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, Shaanxi 712100, China [2] Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China.

ABSTRACT
Mulching and tillage are widely considered to be major practices for improving soil and water conservation where water is scarce. This paper studied the effects of FM (flat mulching), RFM (ridge-furrow mulching), SM (straw mulching), MTMC (mulching with two materials combined), MOM (mulching with other materials), NT (no-tillage) ST (subsoiling tillage) and RT (rotational tillage) on wheat yield based on a synthesis of 85 recent publications (including 2795 observations at 24 sites) in the Loess Plateau, China. This synthesis suggests that wheat yield was in the range of 259-7898 kg ha(-1) for FM and RFM. The sequence of water use efficiency (WUE) effect sizes was similar to that of wheat yield for the practices. Wheat yields were more sensitive to soil water at planting covered by plastic film, wheat straw, liquid film, water-permeable plastic film and sand compared to NT, ST and RT. RFM and RT increased the yields of wheat by 18 and 15%, respectively, and corresponding for WUE by 20.11 and 12.50%. This synthesis demonstrates that RFM was better for avoiding the risk of reduced production due to lack of precipitation; however, under conditions of better soil moisture, RT and MTMC were also economic.

No MeSH data available.


Relationships between grain yield of wheat and soil water content at sowing under five different mulching practices (including conventional tillage) based on published data on the Loess Plateau.a: flat mulching (FM); b: ridge-furrow mulching (RFM); c: straw mulching (SM); d: mulching with two materials combined (MTMC); e: mulching with other materials (MOM).
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f2: Relationships between grain yield of wheat and soil water content at sowing under five different mulching practices (including conventional tillage) based on published data on the Loess Plateau.a: flat mulching (FM); b: ridge-furrow mulching (RFM); c: straw mulching (SM); d: mulching with two materials combined (MTMC); e: mulching with other materials (MOM).

Mentions: The yields increased linearly with the soil water at planting. The results showed that the relationship between grain yield and soil water at planting under different management practices of FM, RFM, SM, MTMC, MOM, NT and ST were significant (P < 0.01) (Fig. 2, Fig. 3a,b). The relationship between the grain yield and soil water at planting was not significant under the tillage practice of RT (P > 0.05) (Fig. 3c). The degrees of correlation between soil water at planting and wheat yield under different mulching and tillage practices were ranked in the orders of FM > MOM > SM > MTMC > RFM and NT > ST > RT, respectively.


Water-use efficiency of dryland wheat in response to mulching and tillage practices on the Loess Plateau.

Wang LF, Shangguan ZP - Sci Rep (2015)

Relationships between grain yield of wheat and soil water content at sowing under five different mulching practices (including conventional tillage) based on published data on the Loess Plateau.a: flat mulching (FM); b: ridge-furrow mulching (RFM); c: straw mulching (SM); d: mulching with two materials combined (MTMC); e: mulching with other materials (MOM).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4507400&req=5

f2: Relationships between grain yield of wheat and soil water content at sowing under five different mulching practices (including conventional tillage) based on published data on the Loess Plateau.a: flat mulching (FM); b: ridge-furrow mulching (RFM); c: straw mulching (SM); d: mulching with two materials combined (MTMC); e: mulching with other materials (MOM).
Mentions: The yields increased linearly with the soil water at planting. The results showed that the relationship between grain yield and soil water at planting under different management practices of FM, RFM, SM, MTMC, MOM, NT and ST were significant (P < 0.01) (Fig. 2, Fig. 3a,b). The relationship between the grain yield and soil water at planting was not significant under the tillage practice of RT (P > 0.05) (Fig. 3c). The degrees of correlation between soil water at planting and wheat yield under different mulching and tillage practices were ranked in the orders of FM > MOM > SM > MTMC > RFM and NT > ST > RT, respectively.

Bottom Line: The sequence of water use efficiency (WUE) effect sizes was similar to that of wheat yield for the practices.Wheat yields were more sensitive to soil water at planting covered by plastic film, wheat straw, liquid film, water-permeable plastic film and sand compared to NT, ST and RT.This synthesis demonstrates that RFM was better for avoiding the risk of reduced production due to lack of precipitation; however, under conditions of better soil moisture, RT and MTMC were also economic.

View Article: PubMed Central - PubMed

Affiliation: 1] State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, Shaanxi 712100, China [2] Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China.

ABSTRACT
Mulching and tillage are widely considered to be major practices for improving soil and water conservation where water is scarce. This paper studied the effects of FM (flat mulching), RFM (ridge-furrow mulching), SM (straw mulching), MTMC (mulching with two materials combined), MOM (mulching with other materials), NT (no-tillage) ST (subsoiling tillage) and RT (rotational tillage) on wheat yield based on a synthesis of 85 recent publications (including 2795 observations at 24 sites) in the Loess Plateau, China. This synthesis suggests that wheat yield was in the range of 259-7898 kg ha(-1) for FM and RFM. The sequence of water use efficiency (WUE) effect sizes was similar to that of wheat yield for the practices. Wheat yields were more sensitive to soil water at planting covered by plastic film, wheat straw, liquid film, water-permeable plastic film and sand compared to NT, ST and RT. RFM and RT increased the yields of wheat by 18 and 15%, respectively, and corresponding for WUE by 20.11 and 12.50%. This synthesis demonstrates that RFM was better for avoiding the risk of reduced production due to lack of precipitation; however, under conditions of better soil moisture, RT and MTMC were also economic.

No MeSH data available.