Improved straw management practices promote in situ straw decomposition and nutrient release, and increase crop production

Xiao Kang Guan, Li Wei, Neil C. Turner, Shou Chen Ma, Ming Da Yang, Tong Chao Wang

Research output: Contribution to journalArticle

Abstract

The annual double-cropping system of winter wheat-summer maize on the North China Plain has caused severe land degradation, particularly soil infertility due to the biannual tillage and straw removal. Two field experiments were conducted from 2012 to 2014. The in situ incubation of wheat and maize straw was measured under four management practices: (i) straw incorporated with application of chemical fertilizer (SF); (ii) straw incorporated with chemical fertilizer and manure (SFM); (iii) straw incorporated with chemical fertilizer and straw-decomposition inoculants (SFD); and (iv) only straw incorporated (CK). Our results showed that SFM and SFD significantly increased the decomposable fraction of straw mass from 64% to 66% in wheat, and 64%–65% in maize straw, as compared to 60% and 53% in wheat and maize respectively, in CKs. SFM and SFD released 77%–78% N and 84%–85% P in wheat straw, while 65%–71% N and 76%–77% P in maize straw in the following crop growing season. A significant increase in straw decomposition and nutrient release induced higher soil urease, phosphatase and invertase activities in SFM and SFD than SF and CK, which resulted higher available N and P in SFM and SFD. Thus, crop yield in the SFM and SFD treatments increased significantly up-to 18–53%. Application of straw incorporated with chemical fertilizer and manure, and their decomposition inoculant is recommended with the advantages of maintaining soil fertility and improving crop production.

Original languageEnglish
Article number119514
JournalJournal of Cleaner Production
Volume250
DOIs
Publication statusPublished - 20 Mar 2020

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Straw
crop production
straw
Nutrients
Crops
management practice
decomposition
Decomposition
nutrient
Fertilizers
wheat
maize
Manures
Soils
in situ
Management practices
Wheat
Maize
manure
Fertilizer

Cite this

@article{6563e997688949d2ad03a11b6dc40c02,
title = "Improved straw management practices promote in situ straw decomposition and nutrient release, and increase crop production",
abstract = "The annual double-cropping system of winter wheat-summer maize on the North China Plain has caused severe land degradation, particularly soil infertility due to the biannual tillage and straw removal. Two field experiments were conducted from 2012 to 2014. The in situ incubation of wheat and maize straw was measured under four management practices: (i) straw incorporated with application of chemical fertilizer (SF); (ii) straw incorporated with chemical fertilizer and manure (SFM); (iii) straw incorporated with chemical fertilizer and straw-decomposition inoculants (SFD); and (iv) only straw incorporated (CK). Our results showed that SFM and SFD significantly increased the decomposable fraction of straw mass from 64{\%} to 66{\%} in wheat, and 64{\%}–65{\%} in maize straw, as compared to 60{\%} and 53{\%} in wheat and maize respectively, in CKs. SFM and SFD released 77{\%}–78{\%} N and 84{\%}–85{\%} P in wheat straw, while 65{\%}–71{\%} N and 76{\%}–77{\%} P in maize straw in the following crop growing season. A significant increase in straw decomposition and nutrient release induced higher soil urease, phosphatase and invertase activities in SFM and SFD than SF and CK, which resulted higher available N and P in SFM and SFD. Thus, crop yield in the SFM and SFD treatments increased significantly up-to 18–53{\%}. Application of straw incorporated with chemical fertilizer and manure, and their decomposition inoculant is recommended with the advantages of maintaining soil fertility and improving crop production.",
keywords = "Nitrogen and phosphorus cycling, Soil available nutrient content, Soil enzymatic activities, Straw incorporation, Straw inoculation",
author = "Guan, {Xiao Kang} and Li Wei and Turner, {Neil C.} and Ma, {Shou Chen} and Yang, {Ming Da} and Wang, {Tong Chao}",
year = "2020",
month = "3",
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language = "English",
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journal = "Journal of Cleaner Production",
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}

Improved straw management practices promote in situ straw decomposition and nutrient release, and increase crop production. / Guan, Xiao Kang; Wei, Li; Turner, Neil C.; Ma, Shou Chen; Yang, Ming Da; Wang, Tong Chao.

In: Journal of Cleaner Production, Vol. 250, 119514, 20.03.2020.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Improved straw management practices promote in situ straw decomposition and nutrient release, and increase crop production

AU - Guan, Xiao Kang

AU - Wei, Li

AU - Turner, Neil C.

AU - Ma, Shou Chen

AU - Yang, Ming Da

AU - Wang, Tong Chao

PY - 2020/3/20

Y1 - 2020/3/20

N2 - The annual double-cropping system of winter wheat-summer maize on the North China Plain has caused severe land degradation, particularly soil infertility due to the biannual tillage and straw removal. Two field experiments were conducted from 2012 to 2014. The in situ incubation of wheat and maize straw was measured under four management practices: (i) straw incorporated with application of chemical fertilizer (SF); (ii) straw incorporated with chemical fertilizer and manure (SFM); (iii) straw incorporated with chemical fertilizer and straw-decomposition inoculants (SFD); and (iv) only straw incorporated (CK). Our results showed that SFM and SFD significantly increased the decomposable fraction of straw mass from 64% to 66% in wheat, and 64%–65% in maize straw, as compared to 60% and 53% in wheat and maize respectively, in CKs. SFM and SFD released 77%–78% N and 84%–85% P in wheat straw, while 65%–71% N and 76%–77% P in maize straw in the following crop growing season. A significant increase in straw decomposition and nutrient release induced higher soil urease, phosphatase and invertase activities in SFM and SFD than SF and CK, which resulted higher available N and P in SFM and SFD. Thus, crop yield in the SFM and SFD treatments increased significantly up-to 18–53%. Application of straw incorporated with chemical fertilizer and manure, and their decomposition inoculant is recommended with the advantages of maintaining soil fertility and improving crop production.

AB - The annual double-cropping system of winter wheat-summer maize on the North China Plain has caused severe land degradation, particularly soil infertility due to the biannual tillage and straw removal. Two field experiments were conducted from 2012 to 2014. The in situ incubation of wheat and maize straw was measured under four management practices: (i) straw incorporated with application of chemical fertilizer (SF); (ii) straw incorporated with chemical fertilizer and manure (SFM); (iii) straw incorporated with chemical fertilizer and straw-decomposition inoculants (SFD); and (iv) only straw incorporated (CK). Our results showed that SFM and SFD significantly increased the decomposable fraction of straw mass from 64% to 66% in wheat, and 64%–65% in maize straw, as compared to 60% and 53% in wheat and maize respectively, in CKs. SFM and SFD released 77%–78% N and 84%–85% P in wheat straw, while 65%–71% N and 76%–77% P in maize straw in the following crop growing season. A significant increase in straw decomposition and nutrient release induced higher soil urease, phosphatase and invertase activities in SFM and SFD than SF and CK, which resulted higher available N and P in SFM and SFD. Thus, crop yield in the SFM and SFD treatments increased significantly up-to 18–53%. Application of straw incorporated with chemical fertilizer and manure, and their decomposition inoculant is recommended with the advantages of maintaining soil fertility and improving crop production.

KW - Nitrogen and phosphorus cycling

KW - Soil available nutrient content

KW - Soil enzymatic activities

KW - Straw incorporation

KW - Straw inoculation

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DO - 10.1016/j.jclepro.2019.119514

M3 - Article

VL - 250

JO - Journal of Cleaner Production

JF - Journal of Cleaner Production

SN - 0959-6526

M1 - 119514

ER -