Response of nitrogen use efficiency and soil nitrate dynamics to soil mulching in dryland maize (Zea mays L.) fields

Liu, Jianliang; Zhan, Ai; Chen, Huai; Luo, Shasha; Bu, Lingduo; Chen, Xinping; Li, Shiqing

doi:10.1007/s10705-015-9678-5

Cited by 77 publications

(29 citation statements)

References 34 publications

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“…This is consistent with the results reported by Liu et al. (2015), who found that plastic mulching resulted in a decrease in soil nitrate‐N in a field experiment in the Northeast of China.…”

Section: Discussionsupporting

confidence: 93%

“…The content of soil nitrate‐N in the RM+FS and PM treatments decreased year by year in the present study, which shows that more yield is bound to be accompanied by more nitrate‐N consumption. Thus, the amount of nitrate‐N remaining in the soil after winter wheat harvest may decrease, as the winter wheat yield increases (Liu et al., 2015). In the present study, compared to NM, the average nitrate‐N remaining in the soil in the PM and RM+FS treatments was significantly lower than in NM and SM.…”

Section: Discussionmentioning

confidence: 99%

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Winter wheat nitrogen utilization under different mulching practices on the Loess Plateau

et al. 2020

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Winter wheat (Triticum aestivum L.) is one of the most important cereal crops in the world, and mulching is mostly practiced in the semi-arid region of Northwest China. We examined the effect of different mulching practices on soil N, plant N uptake, N use efficiency and yield of wheat with similar fertilizer rate. The experiment was conducted for 5 yr with four replicates. The five practices included: Control (CK), nitrogen fertilizer and no mulching (NM), nitrogen fertilizer plus plastic film mulching (PM), nitrogen fertilizer plus ridge mulching and furrow seeding (RM+FS), and nitrogen fertilizer plus straw mulching (SM). We found that yield and biomass of winter wheat were significantly affected by different mulching practices during the five growing seasons. Compared to the NM treatment, the PM, SM, and RM+FS treatments increased grain yield by 13, 9, and 4%, respectively, and biomass by 19, 13, and 10%, respectively. Compared to the NM, the RM+FS and PM treatments tended to decrease average grain, straw, and chaff N concentration, while straw mulching tended to increase average grain, straw, and chaff N concentration. Compared to the NM treatment, all mulching treatments consistently increased NUE, and straw mulching had the most significant effect. Nitrate-N in the NM was most likely to leach into deep layers, followed by the SM and the lowest nitrate-N leaching risk was in the two plastic film mulching treatments. The PM could increase winter wheat yield and decrease the risk of nitrate-N leaching. Thus, PM performed better among the mulching practices.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Winter wheat nitrogen utilization under different mulching practices on the Loess Plateau

et al. 2020

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“…Favorable moisture and temperature conditions under plastic mulches also affect plant roots, typically stimulating root development and increasing root exudation ( Li et al, 2004b ; Subrahmaniyan et al, 2006 ; Wang et al, 2016 ). This results in greater nutrient availability for rhizosphere microorganisms ( Subrahmaniyan et al, 2006 ; Lin et al, 2008 ; Maul et al, 2014 ; Liu et al, 2015 ).…”

Section: Indirect Effects Of Plastic Mulches On Soils Via Microclimatmentioning

confidence: 99%

Biodegradable Plastic Mulch Films: Impacts on Soil Microbial Communities and Ecosystem Functions

et al. 2018

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Agricultural plastic mulch films are widely used in specialty crop production systems because of their agronomic benefits. Biodegradable plastic mulches (BDMs) offer an environmentally sustainable alternative to conventional polyethylene (PE) mulch. Unlike PE films, which need to be removed after use, BDMs are tilled into soil where they are expected to biodegrade. However, there remains considerable uncertainty about long-term impacts of BDM incorporation on soil ecosystems. BDMs potentially influence soil microbial communities in two ways: first, as a surface barrier prior to soil incorporation, indirectly affecting soil microclimate and atmosphere (similar to PE films) and second, after soil incorporation, as a direct input of physical fragments, which add carbon, microorganisms, additives, and adherent chemicals. This review summarizes the current literature on impacts of plastic mulches on soil biological and biogeochemical processes, with a special emphasis on BDMs. The combined findings indicated that when used as a surface barrier, plastic mulches altered soil microbial community composition and functioning via microclimate modification, though the nature of these alterations varied between studies. In addition, BDM incorporation into soil can result in enhanced microbial activity and enrichment of fungal taxa. This suggests that despite the fact that total carbon input from BDMs is minuscule, a stimulatory effect on microbial activity may ultimately affect soil organic matter dynamics. To address the current knowledge gaps, long term studies and a better understanding of impacts of BDMs on nutrient biogeochemistry are needed. These are critical to evaluating BDMs as they relate to soil health and agroecosystem sustainability.

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“…The V. unijuga seed nutrient reserves were increased with plastic mulching relative to straw mulching or the control. This variation in V. unijuga seed nutrient reserves might be explained on the basis of root growth, which is necessary for nutrient uptake important for photosynthesis and seed provisioning (Liu et al, 2009; Loik, 2006) and thus affects nutrient dynamics within seeds (Liu et al, 2015; Stone et al, 1999). Increased soil temperature and moisture generated by plastic film mulching (especially the FM treatment) could promote root development (i.e., increased root biomass) (Supplemental Fig.…”

Section: Discussionmentioning

confidence: 99%

Mulching Affects Seed Set, Provisioning, and Offspring Performance of Vicia unijuga (Fabaceae)

Tang

Zhang

et al. 2019

Agronomy Journal

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Core Ideas Seed set of V. unijuga plants can be maximized by mulching in subalpine conditions. Plastic mulching increased seed provisioning, thus improving V. unijuga seed quality. Increased seed provisioning (mass) of V. unijuga improved germination success. Large seeds/seedlings have higher competitive ability relative to small seeds. ABSTRACT Our aim was to identify the soil and environmental modifications needed to improve seed set and seed quality of the perennial forage legume perennial vetch (Vicia unijuga A. Br.) in harsh subalpine conditions. A 3‐yr field experiment was conducted in a subalpine zone of China to evaluate the effects of modified soil temperature and moisture conditions generated by no mulching (control), plastic film mulching (FM), removal of plastic film mulching at the 30% flowering stage (RM), and threshed barley straw mulching (SM) on seed set, mass, reserves, germination, and seedling growth. The FM and SM treatments were efficient in increasing seed maturation and decreasing ovule abortion at the base of the pods. There were higher 100‐seed weight (HSW) and seed nutrient reserves in the FM and RM treatments, accompanied by higher final germination percentage (FGP) and lower time to 50% germination (T50) and greater initial seedling growth than in the control, whereas the reverse was true for the SM treatment. Modified soil temperature and moisture generated by mulching improved offspring performance traits of V. unijuga through an increase in HSW. The HSW was positively correlated with FGP and seedling growth traits and was negatively associated with T50. In conclusion, the FM treatment provided adequate soil temperature and water resources to maximize seed set by V. unijuga plants. The well‐provisioned seeds from this treatment conferred the advantages of good offspring performance on high germination and seedling growth traits.

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Response of nitrogen use efficiency and soil nitrate dynamics to soil mulching in dryland maize (Zea mays L.) fields

Cited by 77 publications

References 34 publications

Winter wheat nitrogen utilization under different mulching practices on the Loess Plateau

Winter wheat nitrogen utilization under different mulching practices on the Loess Plateau

Biodegradable Plastic Mulch Films: Impacts on Soil Microbial Communities and Ecosystem Functions

Mulching Affects Seed Set, Provisioning, and Offspring Performance of Vicia unijuga (Fabaceae)

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