Conservation tillage practices on the western Loess Plateau, China

Guangdi Li, Kwong Yin Chan, L. L Li, Y. Y Shen

Research output: Book chapter/Published conference paperConference paper

Abstract

For the development of more sustainable farming systems, two conservation tillage field experiments were conducted on the western Loess Plateau at Dingxi and Xifeng, Gansu, China from 2001-2005. Dingxi had a lower rainfall (400 mm) with one crop a year, whereas Xifeng had higher rainfall (550 mm) with 3 crops in two years. The crop rotation was spring wheat-field pea at the Dingxi site and corn-winter wheat-soybean at the Xifeng site. The basic design was a 2 x 2 factorial design (tillage x straw cover) with 4 replicates for both experiments with plastic cover as additional treatments at the Dingxi site. Both experiments were designed as fully phased experiments that each crop presented at least once in each year and two years as one cycle. At the Dingxi site, results showed that no-till with straw cover treatment had the highest grain yield for both spring wheat (2.4 t/ha) and field pea (1.8 t/ha), which were 16% and 15% higher than those on the conventional practice with repeated ploughing and stubble removal, respectively. However, no-till without stubble cover had the lowest grain yield. This highlights the importance of stubble retention in contributing to crop yield increases and the deleterious effect on crop yield of adoption no-till alone. Plastic film cover had risk of environmental problem although it could increase grain yield in short term. At the Xifeng site, there were no yield advantage for no-till practice, but stubble cover increased grain yield significantly for soybean (P < 0.01), but not for corn and winter wheat. The labour and energy savings from reduction of tillage operations could be attractive for the adoption of conservation tillage. In addition, the long-term effects of conservation tillage on soil physical and chemical properties would be beneficial to the farmers in managing these highly erodible soils.
Original languageEnglish
Title of host publicationASA-CSSA-SSSA 2007
Subtitle of host publicationCentury of integrating crops, soils and environment2007 International Annual Meetings
Place of PublicationNew Orleans, Louisiana
PublisherASA
Publication statusPublished - 2007
EventInternational Annual Meetings of the American Society of Agronomy (ASA), Crop Science Society of America (CSSA) and Soil Science Society of America (SSSA) - New Orleans, Louisiana, New Zealand
Duration: 04 Nov 200708 Nov 2007

Conference

ConferenceInternational Annual Meetings of the American Society of Agronomy (ASA), Crop Science Society of America (CSSA) and Soil Science Society of America (SSSA)
CountryNew Zealand
Period04/11/0708/11/07

Fingerprint

conservation tillage
stubble
loess
no-tillage
plateaus
grain yield
China
spring wheat
winter wheat
crop yield
straw
tillage
peas
soybeans
rain
corn
plastic film
crop year
plowing
sustainable agriculture

Cite this

Li, G., Chan, K. Y., Li, L. L., & Shen, Y. Y. (2007). Conservation tillage practices on the western Loess Plateau, China. In ASA-CSSA-SSSA 2007: Century of integrating crops, soils and environment2007 International Annual Meetings New Orleans, Louisiana: ASA.
Li, Guangdi ; Chan, Kwong Yin ; Li, L. L ; Shen, Y. Y. / Conservation tillage practices on the western Loess Plateau, China. ASA-CSSA-SSSA 2007: Century of integrating crops, soils and environment2007 International Annual Meetings. New Orleans, Louisiana : ASA, 2007.
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abstract = "For the development of more sustainable farming systems, two conservation tillage field experiments were conducted on the western Loess Plateau at Dingxi and Xifeng, Gansu, China from 2001-2005. Dingxi had a lower rainfall (400 mm) with one crop a year, whereas Xifeng had higher rainfall (550 mm) with 3 crops in two years. The crop rotation was spring wheat-field pea at the Dingxi site and corn-winter wheat-soybean at the Xifeng site. The basic design was a 2 x 2 factorial design (tillage x straw cover) with 4 replicates for both experiments with plastic cover as additional treatments at the Dingxi site. Both experiments were designed as fully phased experiments that each crop presented at least once in each year and two years as one cycle. At the Dingxi site, results showed that no-till with straw cover treatment had the highest grain yield for both spring wheat (2.4 t/ha) and field pea (1.8 t/ha), which were 16{\%} and 15{\%} higher than those on the conventional practice with repeated ploughing and stubble removal, respectively. However, no-till without stubble cover had the lowest grain yield. This highlights the importance of stubble retention in contributing to crop yield increases and the deleterious effect on crop yield of adoption no-till alone. Plastic film cover had risk of environmental problem although it could increase grain yield in short term. At the Xifeng site, there were no yield advantage for no-till practice, but stubble cover increased grain yield significantly for soybean (P < 0.01), but not for corn and winter wheat. The labour and energy savings from reduction of tillage operations could be attractive for the adoption of conservation tillage. In addition, the long-term effects of conservation tillage on soil physical and chemical properties would be beneficial to the farmers in managing these highly erodible soils.",
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Li, G, Chan, KY, Li, LL & Shen, YY 2007, Conservation tillage practices on the western Loess Plateau, China. in ASA-CSSA-SSSA 2007: Century of integrating crops, soils and environment2007 International Annual Meetings. ASA, New Orleans, Louisiana, International Annual Meetings of the American Society of Agronomy (ASA), Crop Science Society of America (CSSA) and Soil Science Society of America (SSSA), New Zealand, 04/11/07.

Conservation tillage practices on the western Loess Plateau, China. / Li, Guangdi; Chan, Kwong Yin; Li, L. L; Shen, Y. Y.

ASA-CSSA-SSSA 2007: Century of integrating crops, soils and environment2007 International Annual Meetings. New Orleans, Louisiana : ASA, 2007.

Research output: Book chapter/Published conference paperConference paper

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AU - Li, Guangdi

AU - Chan, Kwong Yin

AU - Li, L. L

AU - Shen, Y. Y

N1 - Imported on 03 May 2017 - DigiTool details were: publisher = New Orleans, Louisiana: ASA, 2007. Event dates (773o) = 4-8 Nov 2007; Parent title (773t) = International Annual Meetings of the American Society of Agronomy (ASA), Crop Science Society of America (CSSA) and Soil Science Society of America (SSSA).

PY - 2007

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N2 - For the development of more sustainable farming systems, two conservation tillage field experiments were conducted on the western Loess Plateau at Dingxi and Xifeng, Gansu, China from 2001-2005. Dingxi had a lower rainfall (400 mm) with one crop a year, whereas Xifeng had higher rainfall (550 mm) with 3 crops in two years. The crop rotation was spring wheat-field pea at the Dingxi site and corn-winter wheat-soybean at the Xifeng site. The basic design was a 2 x 2 factorial design (tillage x straw cover) with 4 replicates for both experiments with plastic cover as additional treatments at the Dingxi site. Both experiments were designed as fully phased experiments that each crop presented at least once in each year and two years as one cycle. At the Dingxi site, results showed that no-till with straw cover treatment had the highest grain yield for both spring wheat (2.4 t/ha) and field pea (1.8 t/ha), which were 16% and 15% higher than those on the conventional practice with repeated ploughing and stubble removal, respectively. However, no-till without stubble cover had the lowest grain yield. This highlights the importance of stubble retention in contributing to crop yield increases and the deleterious effect on crop yield of adoption no-till alone. Plastic film cover had risk of environmental problem although it could increase grain yield in short term. At the Xifeng site, there were no yield advantage for no-till practice, but stubble cover increased grain yield significantly for soybean (P < 0.01), but not for corn and winter wheat. The labour and energy savings from reduction of tillage operations could be attractive for the adoption of conservation tillage. In addition, the long-term effects of conservation tillage on soil physical and chemical properties would be beneficial to the farmers in managing these highly erodible soils.

AB - For the development of more sustainable farming systems, two conservation tillage field experiments were conducted on the western Loess Plateau at Dingxi and Xifeng, Gansu, China from 2001-2005. Dingxi had a lower rainfall (400 mm) with one crop a year, whereas Xifeng had higher rainfall (550 mm) with 3 crops in two years. The crop rotation was spring wheat-field pea at the Dingxi site and corn-winter wheat-soybean at the Xifeng site. The basic design was a 2 x 2 factorial design (tillage x straw cover) with 4 replicates for both experiments with plastic cover as additional treatments at the Dingxi site. Both experiments were designed as fully phased experiments that each crop presented at least once in each year and two years as one cycle. At the Dingxi site, results showed that no-till with straw cover treatment had the highest grain yield for both spring wheat (2.4 t/ha) and field pea (1.8 t/ha), which were 16% and 15% higher than those on the conventional practice with repeated ploughing and stubble removal, respectively. However, no-till without stubble cover had the lowest grain yield. This highlights the importance of stubble retention in contributing to crop yield increases and the deleterious effect on crop yield of adoption no-till alone. Plastic film cover had risk of environmental problem although it could increase grain yield in short term. At the Xifeng site, there were no yield advantage for no-till practice, but stubble cover increased grain yield significantly for soybean (P < 0.01), but not for corn and winter wheat. The labour and energy savings from reduction of tillage operations could be attractive for the adoption of conservation tillage. In addition, the long-term effects of conservation tillage on soil physical and chemical properties would be beneficial to the farmers in managing these highly erodible soils.

KW - Grain yield

KW - No-till

KW - Straw cover

M3 - Conference paper

BT - ASA-CSSA-SSSA 2007

PB - ASA

CY - New Orleans, Louisiana

ER -

Li G, Chan KY, Li LL, Shen YY. Conservation tillage practices on the western Loess Plateau, China. In ASA-CSSA-SSSA 2007: Century of integrating crops, soils and environment2007 International Annual Meetings. New Orleans, Louisiana: ASA. 2007