Medium-term effects of different types of N fertilizer on yield, apparent N recovery, and soil chemical properties of a double rice cropping system

Mi, Wenhai; Gao, Qiang; Xia, Siqi; Zhao, Haitao; Wu, Lianghuan; Mao, Wei; Hu, Zhaoping; Liu, Yanling

doi:10.1016/j.fcr.2019.02.012

Cited by 33 publications

(12 citation statements)

References 32 publications

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“…CRF has a significant effect on decreasing labor costs 9 and enhancing fertilization effects. 10,11 At present, various materials have been applied to produce CRFs, 12 including polyolefin, polyurethane, 13 hydrogel, 14,15 epoxy resin, 16 lignin, 17 starch, 18,19 and inorganic materials. 20 Nevertheless, some problems still exist with these raw materials.…”

Section: ■ Introductionmentioning

confidence: 99%

Sulfur-Modified Coated Slow-Release Fertilizer Based on Castor Oil: Synthesis and a Controlled-Release Model

Zhao

Chen

et al. 2020

ACS Sustainable Chem. Eng.

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There has been advancement in the preparation of coated slow-release fertilizer, but problems remain, such as a complex production process, high production costs, and uncontrollable nutrient release. Herein, a new interpenetrating polymer network (IPN) for coating urea was prepared with inexpensive castor oil via a one-pot method. Considering the low strength of oil-based materials, sulfur was used as a reinforcing material to synthesize the interpenetrating network. After prepolymerization, the material strength increased by a maximum of 455.9% and the antiswelling ability increased by 46.10%; however, the thermal stability decreased. The results show that the nutrient release longevity of coatings with only 5.0 wt % polymer could reach 210 days, which is probably the widest applicability range reported so far. Furthermore, a nutrient release model was established to provide guidance for the preparation of slow-release fertilizers suitable for the growth of different plants. Pot experiments show that different slow-release fertilizers have different promoting effects on plant growth, and selecting a suitable slow-release fertilizer according to the needs can maximize the nutrient utilization efficiency. This work offers a simple and effective method to prepare slow-release fertilizers and can guide their development.

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Section: ■ Introductionmentioning

confidence: 99%

Sulfur-Modified Coated Slow-Release Fertilizer Based on Castor Oil: Synthesis and a Controlled-Release Model

Zhao

Chen

et al. 2020

ACS Sustainable Chem. Eng.

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“…The lower NO 3 --N concentration in the deeper soil may be due to less aerobic conditions in flooded soil [60]. Mi et al [58] also reported lower NO 3 -N with increasing soil depth.…”

Section: Soil Nitrate Nmentioning

confidence: 94%

“…The lower concentration of NH 4 + -N in deeper soil layer might be attributed to its adsorbance on soil colloids which leads to lower percolation loss [57]. Lee and Choi [5]; Mi et al 2019 [58] also reported decreased NH 4 + -N with the increase of soil depth. As the mineralization of N from chemical N fertilizer is high the NH 4 + released from STB treatment is subjected to instant crop uptake [5] and volatilization loss which resulted in lower concentration of NH 4 + in the post harvested soil [52].…”

Section: Net Nitrogen Balancementioning

confidence: 96%

Long Term Effects of Integrated Plant Nutrition System on Rice Yield, Nitrogen Dynamics and Biochemical Properties in Soil of Rice-rice Cropping System

Sarkar

Jahan

Haque

et al. 2019

AJSSPN

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Long term fertilization from manure and fertilizer influences crop yield as well as soil nutrient cycling. Therefore, a field experiment was conducted from 2010 to 2014 in order to observe the long term effects of integrated application of manure and fertilizers on rice yield, soil nitrogen dynamics and soil biochemical properties. The field experiment was carried out in a rice-fallow-rice cropping pattern under wetland condition with four fertilizer management practices: NPKS fertilizer as soil test based (STB), Cow dung (CD) @ 3 t ha-1 + NPKS as integrated plant nutrition system (IPNS) [CD+IPNS], Poultry manure (PM) @ 2 t ha-1 + NPKS as IPNS [PM+IPNS] and N control. The rice grain yield, soil N dynamics and the biochemical properties assessed in our study significantly varied with the organic sources used in IPNS system. The annual grain yield of double cropped rice with PM+IPNS was similar to the STB treatment over the five cropping years while CD+IPNS responded from the third year. After five years of rice cropping PM+IPNS showed better impact on soil nitrogen dynamics and biochemical properties compared to STB fertilizer management. Considering the soil health, our study suggests that PM+IPNS could be a good practice for sustainable rice production in long run reducing the use of chemical fertilizer.

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“…Soil total K was determined by the sodium hydroxide fusion method at 720˚C followed by flame photometry measurement (Duan et al, 2020;ISSAS, 1978). Soil available K forms were extracted using 1 mol L −1 ammonium acetate and measured by flame photometry (Mi et al, 2019). Soil total P was measured by the sodium hydroxide-molybdenum antimony colorimetric method (Olsen & Sommers, 1982).…”

Section: Chemical Analysesmentioning

confidence: 99%

Prediction of multiple soil fertility parameters using VisNIR spectroscopy and PXRF spectrometry

Liu

Wang

Xiao

et al. 2021

Soil Science Soc of Amer J

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Visible and near-infrared (VisNIR) spectroscopy and portable X-ray fluorescence (PXRF) spectrometry are successful in estimating soil attributes. However, it is still necessary to investigate their performance in estimating soil fertility properties. In this study, for the soil fertility properties of soil organic C (SOC), available N, total P, available P, total K, and available K, the performance of using VisNIR and PXRF individually and combined, three data fusion methods (concatenation, model fusion and model averaging), and two modeling methods was evaluated. The results showed that combining VisNIR and PXRF did not substantially improve the prediction accuracy of SOC, total P, total K and available K. Using VisNIR alone could predict them well, achieving the best prediction in total K (R 2 = .90, ratio of performance to interquartile distance [RPIQ] = 5.08, and residual prediction deviation [RPD] = 3.13), followed by SOC (R 2 = .77, RPIQ = 2.05, and RPD = 2.10), total P (R 2 = .63, RPIQ = 2.35, and RPD = 1.64), and available K (R 2 = .53, RPIQ = 2.04, and RPD = 1.41). Both available N and available P were poorly estimated by all the methods proposed in this study. Although PXRF alone could predict total P, total K, and available K with acceptable accuracy, it did not perform well on SOC (R 2 < .32, RPIQ < 1.16, and RPD < 1.19). Hence, for the precision application of organic and NPK fertilizers, VisNIR is supposed to be the optimal way to rapidly obtain soil information.

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Medium-term effects of different types of N fertilizer on yield, apparent N recovery, and soil chemical properties of a double rice cropping system

Cited by 33 publications

References 32 publications

Sulfur-Modified Coated Slow-Release Fertilizer Based on Castor Oil: Synthesis and a Controlled-Release Model

Sulfur-Modified Coated Slow-Release Fertilizer Based on Castor Oil: Synthesis and a Controlled-Release Model

Long Term Effects of Integrated Plant Nutrition System on Rice Yield, Nitrogen Dynamics and Biochemical Properties in Soil of Rice-rice Cropping System

Prediction of multiple soil fertility parameters using VisNIR spectroscopy and PXRF spectrometry

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