Effect of inorganic fertilizers with organic amendments on soil chemical properties and rice yield in a low-productivity paddy soil

Mi, Wenhai; Sun, Yan; Xia, Siqi; Zhao, Haitao; Mi, Wentian; Brookes, Philip C.; Liu, Yanling; Wu, Lianghuan

doi:10.1016/j.geoderma.2018.01.016

Cited by 110 publications

(46 citation statements)

References 32 publications

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“…In our study, the application of organic materials (rapeseed cake, Chinese milk vetch, and duck feces) significantly affected SOM and pH in the soil as compared to the CK treatment ( Table 2). This is consistent with previously reported findings [41,42]. The increased soil fertility may be attributed to the increased decay of organic matter and the mixing of the soil due to the ducklings' activities in the ER cultured fields, which could promote the oxidative-reductive capacity of the earth and enhance the effective processing of nutrients [43].…”

Section: Chemical Fertilizer Substitution Effect On Paddy Soil and Risupporting

confidence: 92%

Cleaner Production Technologies Increased Economic Benefits and Greenhouse Gas Intensity in an Eco-Rice System in China

Yang

Zhang

et al. 2019

Sustainability

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The sustainability of intensification of rice production is a prime concern for China. Application of organic amendments, changes in crop rotation system, ducklings' introduction, and construction of vegetated drainage ditches are some of the original management strategies to mitigate environmental pollution from paddy fields. Although these practices affect the rice culturing system through different mechanisms, there is limited investigation on their effectiveness on nutrient pollution alleviation. Therefore, a field study was carried out with the assessment of soil physico-chemical properties, greenhouse gas emissions, nitrogen removal efficiency, grain yield, and economic benefits by comparing the eco-rice culturing system (ER) to the local single rice cultivation system (CK). Results showed that the ER system can significantly improve soil fertility by increasing the pH in acidic soil, organic matter, total nitrogen (TN), and available potassium (K) content by 5.2%, 25.7%, 19.1%, and 19.4% in relation to CK, respectively. Meanwhile, about 10% of the total fertilizer N was removed from the harvesting of the plant species (Myriophyllum elatinoides and Pennisetum purpureum) in the vegetated drainage ditches. However, the ER system decreased the plant height (1.1%) and the number of tillers (9.6%), resulting in a reduction of the total grain yield (6.0%). Moreover, compared with the CK system, the ER system increased CH 4 cumulative emission, global warming potential (GWP), and greenhouse gas intensity (GHGI) by 11.1%, 8.1%, and 14.3%, respectively, and decreased N 2 O by 27.2%, but not statistical significantly (p < 0.05). Even so, by taking the costs of farm operations and carbon costs of greenhouse gas emissions, the net economic benefits by applying the ER system were higher relative to the CK system. Thus, our study provides further understanding of the technology which has the potential to transform sustainable rice production to a more profitable, income generating, and environmentally friendly industry in China.

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Section: Chemical Fertilizer Substitution Effect On Paddy Soil and Risupporting

confidence: 92%

Cleaner Production Technologies Increased Economic Benefits and Greenhouse Gas Intensity in an Eco-Rice System in China

Yang

Zhang

et al. 2019

Sustainability

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“…Wang et al (2016) noted that the application of phosphate fertilizer containing zinc may increase available Zn in soils [36]. Additionally, the contribution of soil pH to available Fe and Mn in 2017 was higher than in 2007, a change which may be associated with the excessive application of fertilizers over a long time-period, which would result in soil acidification in each sub-catchment [37]. Moreover, the differences in the contribution of soil SOM, pH, AK and AP among sub-catchments were mainly due to small farming practices and soil management techniques.…”

Section: The Relationship Between Soil-available Micronutrients and Smentioning

confidence: 99%

Spatio-Temporal Variability and the Factors Influencing Soil-Available Heavy Metal Micronutrients in Different Agricultural Sub-Catchments

Zhuo

Xing

et al. 2019

Sustainability

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Information on the spatial variability of soil-available micronutrients is important for farming and soil management practices. As current knowledge of factors influencing soil available micro-nutrients in the long-term scales is limited, we analyzed 821 and 812 representative surface (0-20 cm) soil samples from five sub-catchments in the Ping Gu intermontane basin in Beijing, China in 2007 and 2017. The objectives of this study were to assess the temporal and spatial distribution characteristics of soil-available micronutrients (Cu, Zn, Fe and Mn) and their relationships with soil's chemical properties. The concentration of available Cu ranged from 1-2 mg·kg −1 distributing over a large area in 2007, but it was more than 2 mg·kg −1 in the hilly regions in 2017. The concentration of available Zn (>5 mg·kg −1 ) increased significantly from 2007 to 2017, and showed an uneven distribution. The distribution of available Fe and Mn decreased from the northeast to the southwest region of the study area between 2007 and 2017, this being consistent with the topography in this area. Soil's available P (AP) had a higher contribution to available Cu and Zn in different sub-catchments. In addition, soil pH had a significant negative influence on available Fe in sub-catchments 1, 2 and 3, and on available Mn in all sub-catchments, except for sub-catchment 4. Moreover, the effects of soil chemical properties on soil-available micronutrients increased in each sub-catchment from 2007 to 2017. We conclude that differences in soil properties and land-use types were the main reasons for the spatial variability of soil-available micronutrients in the Ping Gu intermontane basin.

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“…Many studies have been concerned with the influence of SR on crop growth and yield (Asten et al, 2005;Kaur and Mahal, 2017;Wang et al, 2018). For paddy fields, previous studies have investigated the impact of the amounts, application time, and burial depth of SR on rice (Oryza sativa L.) growth and yield (Beutler et al, 2017;Mi et al, 2018). It has been demonstrated that SR at the rate of < 7.5 t ha -1 can enhance rice plant height, number of tillers, and biomass production in the middle or late growth stages (Thuy et al, 2008;Han et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Effects of straw returning on rice growth and yield under water-saving irrigation

Wei

Sun

et al. 2019

Chil. j. agric. res.

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Straw returning (SR) is an important means of straw utilization, which has been tested and is helpful for improving soil fertility and crop production. However, the effects of SR on plant growth and yield of paddy rice (Oryza sativa L. subsp. japonica Kato) under water-saving irrigation (WSI) are rarely investigated. In the 2015 and 2016 rice seasons, field experiments were conducted with four treatments, namely controlled irrigation with conventional fertilization (CI-CF), controlled irrigation with straw returning (CI-SR), flooding irrigation with conventional fertilization (FI-CF), and flooding irrigation with straw returning (FI-SR). The objective of the present study was to investigate the response of plant height, number of tillers, biomass, and yield to SR and irrigation management. Results indicated that SR enhanced rice yield on average by 7.9% and 7.5% and improved irrigation water use efficiency (IWUE) by 6.3% and 8.3% in 2015 and 2016, respectively. The CI-SR combination significantly increased IWUE compared with FI-CF. These results suggested that SR could offset the inhibition of rice growth caused by CI, and the CI-SR combination could be an effective measure to enhance soil fertility, maintain the rice field, and increase IWUE. Furthermore, rice growth (plant height, number of tillers, and biomass) was slightly inhibited by SR during the first 20 d of the rice season, but increased after the jointing stage (approximately 40 d after transplanting). This implied that diverting some top-dressed chemical N fertilizer into basal application may be necessary for fertilizer management to better meet crop nutrient uptakes in rice fields with SR application, especially with CI.

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Effect of inorganic fertilizers with organic amendments on soil chemical properties and rice yield in a low-productivity paddy soil

Cited by 110 publications

References 32 publications

Cleaner Production Technologies Increased Economic Benefits and Greenhouse Gas Intensity in an Eco-Rice System in China

Cleaner Production Technologies Increased Economic Benefits and Greenhouse Gas Intensity in an Eco-Rice System in China

Spatio-Temporal Variability and the Factors Influencing Soil-Available Heavy Metal Micronutrients in Different Agricultural Sub-Catchments

Effects of straw returning on rice growth and yield under water-saving irrigation

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