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Using manure for improving nitrogen fertilization and maize yield

Published online by Cambridge University Press:  14 January 2021

Xucun Jia ,
Qinglong Yang ,
Shu-Ting Dong ,
Ji-Wang Zhang ,
Bin Zhao  and
Peng Liu Open the ORCID record for Peng Liu [Opens in a new window]
Xucun Jia
Affiliation:
College of Agronomy, Shandong Agricultural University/State Key Laboratory of Crop Biology, Tai’an, Shandong 271018, China College of Agronomy, Henan Agricultural University, Zhengzhou, Henan 450046, China
Qinglong Yang
Affiliation:
College of Agronomy, Shandong Agricultural University/State Key Laboratory of Crop Biology, Tai’an, Shandong 271018, China
Shu-Ting Dong
Affiliation:
College of Agronomy, Shandong Agricultural University/State Key Laboratory of Crop Biology, Tai’an, Shandong 271018, China
Ji-Wang Zhang
Affiliation:
College of Agronomy, Shandong Agricultural University/State Key Laboratory of Crop Biology, Tai’an, Shandong 271018, China
Bin Zhao
Affiliation:
College of Agronomy, Shandong Agricultural University/State Key Laboratory of Crop Biology, Tai’an, Shandong 271018, China
Peng Liu*
Affiliation:
College of Agronomy, Shandong Agricultural University/State Key Laboratory of Crop Biology, Tai’an, Shandong 271018, China
*
*Corresponding author. Email: [email protected] or [email protected]
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Abstract

Manure and chemical fertilizers have different effects on soil properties, the nitrogen cycle, and crop yield. This study aimed to investigate the effects of different fertilizer applications under the same N input on soil physicochemical properties and soil bacterial communities and to explain the contributions of soil properties to grain yield. Manure substitution of chemical fertilizer was conducted in leaching monitoring systems. The study began in 2009 and sampling was carried out in 2014 and 2016. Three fertilizer treatments with the same total N, P, and K application rates and one control treatment were designed as follows: (1) CK, without nitrogen fertilizer; (2) 100%U, whole nitrogen coming from urea; (3) 100%M, whole nitrogen coming from composted cattle manure; and (4) 50%U + 50%M, half nitrogen from composted cattle manure and half nitrogen from urea. Soil organic carbon (SOC) content was positively correlated with total N (TN), NO3−–N, and NH4+–N contents, the mean weight diameter of soil aggregates, and the Shannon diversity index of bacteria, whereas SOC content was not significantly correlated with grain yield. NO3−–N content was positively correlated with grain yield. Substituting half the amount of chemical fertilizer with manure as a nitrogen source improved soil stability, increased bacterial diversity, and enhanced nitrogen supply, while reducing nitrogen loss from ammonia volatilization and nitrogen leaching. Substituting half the amount of chemical fertilizer with manure as a nitrogen source was a more sustainable way to increase grain yield through a sustainable nitrate supply and to reduce N loss.

Keywords

Manure substitutionSoil organic carbonSoil aggregate stabilitySoil bacterial communityNitrogen flow
Type
Research Article
Information
Experimental Agriculture , Volume 56 , Issue 6 , December 2020 , pp. 901 - 914
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© The Author(s), 2021. Published by Cambridge University Press

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