Straw mulching is more important than no tillage in yield improvement on the Chinese Loess Plateau

Xiao, Liangang; Zhao, Rongqin; Kuhn, Nikolaus J.

doi:10.1016/j.still.2019.104314

Cited by 44 publications

(27 citation statements)

References 29 publications

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“…In China, the traditional full straw mulching is regarded as one of the best ways of improving soil water retention and reducing soil evaporation (Xiao, Zhao, & Kuhn, 2019; Zhang et al., 2015). Besides, the straw mulching could improve rainwater infiltration capacity and increase water intake and storage (Prosdocimi, Tarolli, & Cerdà, 2016), reduce soil erosion and runoff (Jordán, Zavala, & Gil, 2010), improve soil structures and quality (Döring, Brandt, Heß, Finckh, & Saucke, 2005; Zhang et al., 2015), and enhance crop growth to increase crop yield and WUE (Chen et al., 2019; Wang, Ghimire, Fu, Sainju, & Liu, 2018).…”

Section: Introductionmentioning

confidence: 99%

Straw strip mulching affects soil moisture and temperature for potato yield in semiarid regions

et al. 2020

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Straw mulching is widely used in agriculture to conserve soil water and improve crop productivity. The effects of straw strip mulching and film mulching on dryland soil water storage and temperature, potato (Solanum tuberosum L.) growth and yield, and water use efficiency (WUE) were examined from 2014 to 2015 in the rainfed semi-arid regions of China. Field experiments were conducted with four treatments: (a) alternating strips mulched with maize (Zea mays L.) straw and bare plots with no ridges (SM); (b) alternating large ridges and small furrows with only the ridges mulched with black polyethylene film (PMP); (c) alternating narrows and wide ridges both mulched by black polyethylene film (PMF), and (d) traditional bare land planting without mulching (CK). The results indicated that film mulching had positive effects on soil water storage at the early stage of potato growth, while the SM significantly improved soil water storage at the late growth stage. Soil water storage (0-2-m depth) was 11.3-35.4 mm greater with the SM than that with the other treatments, especially during the tuber bulking in summer drought period. Compared with the CK, the SM significantly decreased soil temperature by 0.8-1.4 • C, and increased potato yield by 10.5-34.2%, WUE by 8.9-29.8%, and commodity rate by 14.7-38.8%. Compared with the PMP and PMF, the SM increased potato yield by 4.6-12.9 and 3.4-9.3%, respectively. This might be contributed to increased soil moisture and lower soil temperature, which promoted potato growth, yield, and commodity rates.Abbreviations: CK, traditional bare land planting without mulching; ET, evapotranspiration; PMF, narrow and wide ridges mulched by black polyethylene film; PMP, large ridges and small furrows only ridges mulched with black polyethylene film; SM, straw strip mulching; SWS, soil water storage; WUE, water use efficiency.

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Section: Introductionmentioning

confidence: 99%

Straw strip mulching affects soil moisture and temperature for potato yield in semiarid regions

et al. 2020

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“…Due to high rice-wheat production in China, a large quantity of field straw will seriously affect sowing quality during the rice-wheat rotation period [2,3]. As a kind of direct straw-mulching method in China, conservation tillage with straw smashing is an effective method to reduce pollution and enhance fertility in agriculture.…”

Section: Introductionmentioning

confidence: 99%

Uniformity Detection for Straws Based on Overlapping Region Analysis

Feng

Xie

et al. 2022

Agriculture

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Nowadays, the advanced comprehensive utilization and the complete prohibition of burning fully covered straws in croplands have become increasingly important in agriculture engineering. As a kind of direct straw-mulching method in China, conservation tillage with straw smashing is an effective method to reduce pollution and enhance fertility. In view of the high straw-returning yields, complicated manual operation, and the poor performance of straw detection with machine vision, this study introduces a novel form of uniformity detection for straws based on overlapping region analysis. An image-processing technology using a novel overlapping region analysis was proposed to overcome the inefficiency and low precision resulting from the manual identification of the straw uniformity. In this study, the debris in the gray map was removed according to region characteristics. Through using morphological theory with overlapping region analysis in low-density cases, straws of appropriate length can be identified and then uniformity detection can be accomplished. Compared with traditional threshold segmentation methods, the advantages of an accurate identification, fast operation, and high efficiency contribute to the better performance of the innovative overlapping region analysis. Finally, the proposed algorithm was verified through detecting the uniformity in low-density cases, with an average accuracy rate of 97.69%, providing a novel image recognition solution for automatic straw-mulching systems.

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“…It also can increase contents of soil nutrients, such as N, P, and K [3] ; reduce soil bulk density and increase soil porosity [6] ; improve soil structure [7] and moisture [4] ; help avoid environmental pollution caused by straw burning [8] . Previous research of farmland ecosystems affected by straw return mainly focuses on crop yield, nutrient cycling, fertilizer substitution, carbon sequestration, etc [9][10][11] . However, these unilateral approaches are not comprehensive and a more complete understanding of the effect of straw returning on the farmland ecosystem is still lacking.…”

Section: Introduction mentioning

confidence: 99%

Evaluation of ecosystem service of straw return to soil in a wheat field of China

Cui

Cao

Zhu

2021

International Journal of Agricultural and Biological Engineering

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Crop straw is an important natural resource in China because it is rich in nutrients. When returned to fields after harvests, the straw can improve soil quality and the next crop's yield. Evaluating the economic values of the main ecological services of a farmland ecosystem while implementing the straw return technique can be a more systematic and comprehensive approach to better understand the contribution of straw return to the development of ecological agriculture. Based on the data of a field experiment established in 2010 with varying numbers of years of straw return, four ecological services, i.e., agricultural product and industrial raw materials, atmospheric regulation and purification, soil nutrient accumulation, and water conservation, were selected to estimate a net ecosystem service value (ESV) of a wheat field's ecosystem services. Agro-ecosystem service appraisal theories were applied to estimate the economic value of each service. Results showed that straw returning improved the total ESV in the wheat system. Compared to the no straw return treatment, 1 year, 3 years, 5 years or 7 years of straw returning altered the economic value of the agricultural product and industrial raw materials (EVAIM) by -5.93% to 7.84% and improved atmospheric regulation (EVAR) by 13.66%-30.80%, soil nutrient accumulation (EVSNA) by 59.87%-233.31% and water conservation (EVWC) by 2.60%-13.26%. The total ESV of wheat plots with 1-7 years of straw returning was 3.67%-27.41% higher than that with no straw return, and the total ESV increased with the increase in years of straw return. The proportion of EVAIM out of the total ESV in this wheat field system was highest (accounted for 47.09%-55.64%), followed by EVAR and EVWC. The value of EVSNA was the lowest. However, the proportion of EVSNA was higher than that of water conservation after the fifth year of straw return. In general, the adoption of continuous straw returning in a wheat field ecosystem is ecologically valuable. The results can inform the development and implementation of ecological compensation policies involving straw return.

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Straw mulching is more important than no tillage in yield improvement on the Chinese Loess Plateau

Cited by 44 publications

References 29 publications

Straw strip mulching affects soil moisture and temperature for potato yield in semiarid regions

Straw strip mulching affects soil moisture and temperature for potato yield in semiarid regions

Uniformity Detection for Straws Based on Overlapping Region Analysis

Evaluation of ecosystem service of straw return to soil in a wheat field of China

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