eprintid: 11515
rev_number: 11
eprint_status: archive
userid: 3170
dir: disk0/00/01/15/15
datestamp: 2020-06-12 05:52:24
lastmod: 2020-06-12 05:52:24
status_changed: 2020-06-12 05:52:24
type: article
metadata_visibility: show
creators_name: Peng, Z
creators_name: Wang, L
creators_name: Xie, J
creators_name: Li, L
creators_name: Coulter, J A
creators_name: Zhang, R
creators_name: Luo, Z
creators_name: Kholova, J
creators_name: Choudhary, S
creators_gender: Female
icrisatcreators_name: Kholova, J
icrisatcreators_name: Choudhary, S
affiliation: Gansu Provincial Key Laboratory of Aridland Crop Science, Gansu Agricultural University, (Lanzhou)
affiliation: College of Agronomy, Gansu Agricultural University, (Lanzhou)
affiliation: Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul
affiliation: College of Resource and Environment, Gansu Agricultural University, Lanzhou
affiliation: ICRISAT (Patancheru)
country: China
country: India
title: Conservation Tillage Increases Water Use Efficiency of Spring Wheat by Optimizing Water Transfer in a Semi-Arid Environment
ispublished: pub
subjects: S21
subjects: s2.3
subjects: wa1
divisions: CRPS4
full_text_status: public
keywords: Conservation tillage, Water potential gradient, Water transfer resistance, Transpiration, Water use e�fficiency
abstract: Water availability is a major constraint for crop production in semiarid environments.
The impact of tillage practices on water potential gradient, water transfer resistance, yield, and water
use e�ciency (WUEg) of spring wheat was determined on the western Loess Plateau. Six tillage
practices implemented in 2001 and their e�ects were determined in 2016 and 2017 including
conventional tillage with no straw (T), no-till with straw cover (NTS), no-till with no straw (NT),
conventional tillage with straw incorporated (TS), conventional tillage with plastic mulch (TP),
and no-till with plastic mulch (NTP). No-till with straw cover, TP, and NTP significantly improved
soil water potential at the seedling stage by 42, 47, and 57%, respectively; root water potential at the
seedling stage by 34, 35, and 51%, respectively; leaf water potential at the seedling stage by 37, 48,
and 42%, respectively; tillering stage by 21, 24, and 30%, respectively; jointing stage by 28, 32, and 36%,
respectively; and flowering stage by 10, 26, and 16%, respectively, compared to T. These treatments
also significantly reduced the soil–leaf water potential gradient at the 0–10 cm soil depth at the
seedling stage by 35, 48, and 35%, respectively, and at the 30–50 cm soil depth at flowering by 62,
46, and 65%, respectively, compared to T. Thus, NTS, TP, and NTP reduced soil–leaf water transfer
resistance and enhanced transpiration. Compared to T, the NTS, TP, and NTP practices increased
biomass yield by 18, 36, and 40%; grain yield by 28, 22, and 24%; and WUEg by 24, 26, and 24%,
respectively. These results demonstrate that no-till with straw mulch and plastic mulching with
either no-till or conventional tillage decrease the soil–leaf water potential gradient and soil–leaf water
transfer resistance and enhance sustainable intensification of wheat production in semi-arid areas.
date: 2019-09
date_type: published
publication: Agronomy (TSI)
volume: 9
number: 583
publisher: MDPI
pagerange: 1-18
id_number: doi:10.3390/agronomy9100583
refereed: TRUE
issn: 2073-4395
official_url: https://doi.org/10.3390/agronomy9100583
related_url_url: https://scholar.google.com/scholar?hl=en&as_sdt=0%2C5&q=10.3390%2Fagronomy9100583&btnG=
related_url_type: pub
funders: Research Program of the Gansu Provincial Key Laboratory of Aridland Crop Science
funders: Gansu Agricultural University
funders: National Natural Science Foundation of China
funders: Department of Education of Gansu Province
citation:   Peng, Z and Wang, L and Xie, J and Li, L and Coulter, J A and Zhang, R and Luo, Z and Kholova, J and Choudhary, S  (2019) Conservation Tillage Increases Water Use Efficiency of Spring Wheat by Optimizing Water Transfer in a Semi-Arid Environment.  Agronomy (TSI), 9 (583).  pp. 1-18.  ISSN 2073-4395     
document_url: http://oar.icrisat.org/11515/1/17.Agronomy-Conservation%20Tillage%20%282019%29.pdf