Straw mulching reduces the harmful effects of extreme hydrological and temperature conditions in citrus orchards.

Extreme weather conditions with negative impacts can strongly affect agricultural production. In the Danjiangkou reservoir area, citrus yields were greatly influenced by cold weather conditions and drought stress in 2011. Soil straw mulching (SM) practices have a major effect on soil water and therm...

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Main Authors: Yi Liu, Jing Wang, Dongbi Liu, Zhiguo Li, Guoshi Zhang, Yong Tao, Juan Xie, Junfeng Pan, Fang Chen
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2014-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3904954?pdf=render
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author Yi Liu
Jing Wang
Dongbi Liu
Zhiguo Li
Guoshi Zhang
Yong Tao
Juan Xie
Junfeng Pan
Fang Chen
author_facet Yi Liu
Jing Wang
Dongbi Liu
Zhiguo Li
Guoshi Zhang
Yong Tao
Juan Xie
Junfeng Pan
Fang Chen
author_sort Yi Liu
collection DOAJ
description Extreme weather conditions with negative impacts can strongly affect agricultural production. In the Danjiangkou reservoir area, citrus yields were greatly influenced by cold weather conditions and drought stress in 2011. Soil straw mulching (SM) practices have a major effect on soil water and thermal regimes. A two-year field experiment was conducted to evaluate whether the SM practices can help achieve favorable citrus fruit yields. Results showed that the annual total runoff was significantly (P<0.05) reduced with SM as compared to the control (CK). Correspondingly, mean soil water storage in the top 100 cm of the soil profile was increased in the SM as compared to the CK treatment. However, this result was significant only in the dry season (Jan to Mar), and not in the wet season (Jul to Sep) for both years. Interestingly, the SM treatment did not significantly increase citrus fruit yield in 2010 but did so in 2011, when the citrus crop was completely destroyed (zero fruit yield) in the CK treatment plot due to extremely low temperatures during the citrus overwintering stage. The mulch probably acted as an insulator, resulting in smaller fluctuations in soil temperature in the SM than in the CK treatment. The results suggested that the small effects on soil water and temperature changes created by surface mulch had limited impact on citrus fruit yield in a normal year (e.g., in 2010). However, SM practices can positively impact citrus fruit yield in extreme weather conditions.
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spelling doaj.art-f43ed7faee4644c589d84ac79c6544aa2022-12-21T18:31:07ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-0191e8709410.1371/journal.pone.0087094Straw mulching reduces the harmful effects of extreme hydrological and temperature conditions in citrus orchards.Yi LiuJing WangDongbi LiuZhiguo LiGuoshi ZhangYong TaoJuan XieJunfeng PanFang ChenExtreme weather conditions with negative impacts can strongly affect agricultural production. In the Danjiangkou reservoir area, citrus yields were greatly influenced by cold weather conditions and drought stress in 2011. Soil straw mulching (SM) practices have a major effect on soil water and thermal regimes. A two-year field experiment was conducted to evaluate whether the SM practices can help achieve favorable citrus fruit yields. Results showed that the annual total runoff was significantly (P<0.05) reduced with SM as compared to the control (CK). Correspondingly, mean soil water storage in the top 100 cm of the soil profile was increased in the SM as compared to the CK treatment. However, this result was significant only in the dry season (Jan to Mar), and not in the wet season (Jul to Sep) for both years. Interestingly, the SM treatment did not significantly increase citrus fruit yield in 2010 but did so in 2011, when the citrus crop was completely destroyed (zero fruit yield) in the CK treatment plot due to extremely low temperatures during the citrus overwintering stage. The mulch probably acted as an insulator, resulting in smaller fluctuations in soil temperature in the SM than in the CK treatment. The results suggested that the small effects on soil water and temperature changes created by surface mulch had limited impact on citrus fruit yield in a normal year (e.g., in 2010). However, SM practices can positively impact citrus fruit yield in extreme weather conditions.http://europepmc.org/articles/PMC3904954?pdf=render
spellingShingle Yi Liu
Jing Wang
Dongbi Liu
Zhiguo Li
Guoshi Zhang
Yong Tao
Juan Xie
Junfeng Pan
Fang Chen
Straw mulching reduces the harmful effects of extreme hydrological and temperature conditions in citrus orchards.
PLoS ONE
title Straw mulching reduces the harmful effects of extreme hydrological and temperature conditions in citrus orchards.
title_full Straw mulching reduces the harmful effects of extreme hydrological and temperature conditions in citrus orchards.
title_fullStr Straw mulching reduces the harmful effects of extreme hydrological and temperature conditions in citrus orchards.
title_full_unstemmed Straw mulching reduces the harmful effects of extreme hydrological and temperature conditions in citrus orchards.
title_short Straw mulching reduces the harmful effects of extreme hydrological and temperature conditions in citrus orchards.
title_sort straw mulching reduces the harmful effects of extreme hydrological and temperature conditions in citrus orchards
url http://europepmc.org/articles/PMC3904954?pdf=render
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