Straw Incorporation Coupled with Deep Placement of Nitrogen Fertilizer Improved Grain Yield and Nitrogen Use Efficiency in Direct-Seeded Rice

Chen, Yunyan; Ping, Fan; Li, Lin; Tian, Hua; Ashraf, Umair; Mo, Zhaowen; Duan, Meiyang; Wu, Qiantong; Zheng, Zhang; Tang, Xiangru; Pan, Shenggang

doi:10.1007/s42729-020-00301-2

Cited by 24 publications

(10 citation statements)

References 40 publications

(38 reference statements)

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“…These data suggest that RS can markedly influence rhizosphere soil bacterial communities. Under conditions of RS amendment, SA, CA, PA, AN, AP, NON, and NHN were significantly correlated with bacterial communities, owing to the participation of many microbes and soil enzymes in the context of straw decomposition and nutrient consumption, in line with prior reports ( Zhao et al, 2017 ; Chen et al, 2020 ). Under conditions of BC amendment, UA and pH were significantly correlated with bacterial communities ( Figure 5 ).…”

Section: Resultssupporting

confidence: 89%

Influence of planting methods and organic amendments on rice yield and bacterial communities in the rhizosphere soil

Tang

Zhang

et al. 2022

Front. Microbiol.

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A comprehensive understanding of rice cultivation techniques and organic amendments affecting soil quality, enzyme activities and bacterial community structure is crucial. We investigated two planting methods (direct seeding and transplanting) of paddy rice (Oryza sativa) and organic amendments with rice straw and biochar on crop yield and soil biological and physicochemical properties. Rhizosphere bacterial communities at the maturity stage of rice growth were characterized through high-throughput 16S rRNA sequencing. Soil biochemical properties and enzyme activity levels were analyzed. Grain yield of paddy rice with transplanting increased 10.6% more than that with direct seeding. The application of rice straw increased grain yield by 7.1 and 8.2%, more than with biochar and the control, respectively. Compared to biochar and the control, the application of rice straw significantly increased sucrase, cellulase, protease, organic carbon, available phosphorus, nitrate, and ammonium. The application of biochar increased microbial biomass nitrogen and carbon, urease, pH, available nitrogen, and available potassium compared to the application of rice straw and the control. Principal coordinate analysis and dissimilarity distances confirmed significant differences among the microbial communities associated with planting methods and organic amendments. Bacteroidetes, Nitrospirae, Firmicutes, and Gemmatimonadetes abundance increased with rice straw relative to biochar and the control. The biochar addition was associated with significant increases in Chloroflexi, Patescibacteria, Proteobacteria, and Actinobacteria abundance. Pearson’s correlation analyzes showed that Chloroflexi, Bacteroidetes and Nitrospirae abundance was positively correlated with grain yield. The relative abundance of these bacteria in soil may be beneficial for improving grain yield. These results suggest that planting methods and organic amendments impact soil biochemical characteristics, enzyme activity levels, and microbial community composition.

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Section: Resultssupporting

confidence: 89%

Influence of planting methods and organic amendments on rice yield and bacterial communities in the rhizosphere soil

Tang

Zhang

et al. 2022

Front. Microbiol.

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“…Straw returning greatly enhanced crop biomass and grain yields (Table 1) in our study, which is consistent with the findings of Chen et al. (2020). The average increase in yield over 3 years was 14.7% for maize and 15.1% for rice under straw return, which was higher than the average of 12.3% and 13.4 % shown in the meta-analysis (Liu et al.…”

Section: Discussionsupporting

confidence: 93%

Straw return-enhanced soil carbon and nitrogen fractions and nitrogen use efficiency in a maize–rice rotation system

Wang,

Qin,

Zhan

et al. 2024

Ex. Agric.

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Summary Considering straw resource utilization and air pollution prevention, straw return has been commonly practiced in China. However, the practicability of plenty straw return in an emerging maize–rice rotation and their effects on soil C and N pools have not been extensively investigated. This study has been conducted to examine the effects of straw return on soil nutrients, soil functional C and N fractions, and then to figure out their relationships with yield and N use efficiency. Two treatments of straw return (S2Nck) and without straw return (S0Nck) were compared in 3-year field experiment, and subplots without N application were added in their respective plots in the third year. The results showed that, relative to the control (S0Nck), straw return significantly increased soil mineralized nitrogen (Nmin), available P, and exchange K content by 11.7%, 41.1%, and 17.4% averaged across 3-year experiments, respectively. Straw return substantially increased soil dissolved organic C, microbial biomass C, and microbial biomass N content by 73.0%, 25.2%, and 36.8%, respectively. Furthermore, straw return markedly increased C and N retention in particulate organic matter in microaggregates (iPOM) and mineral associated organic matter within microaggregates (intra-SC), but significantly reduced in free mineral associated organic matter (free-SC) fraction. The structural equation modeling analysis showed that yield and the partial factor productivity of N were positively correlated with labile and slow soil C and N fractions. Consequently, straw incorporation significantly increased grain yields of maize by 14.7% and rice by 15.1%. The annual potential reduction proportion in fertilizer-N induced by straw return was estimated to be 25.7% in the third year. This study suggests that the incorporation of straws is an effective way to enhance soil nutrients and regulate soil C and N pools to improve crop production and has the potential to reduce N fertilizer application under maize–rice rotation in subtropical regions.

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“…Haberman et al (2019) found that returning straw to the field can increase the content of water‐soluble potassium (K), nonexchangeable K and mineral K in the soil, and play a role in nutrient return. Straw incorporation coupled with deep placement of N fertilizer could increase grain yield and N use efficiencies by decomposition of straw leading to more nutrition release into the soil in direct‐seeded rice (Chen, Fan, Li et al., 2020). Wang et al.…”

Section: Introductionmentioning

confidence: 99%

“…The excellent rice root morphology effectively promotes rice root growth such that nutrient uptake and material synthesis increases and key enzyme activities in the grain are promoted, ultimately increasing protein synthesis and the brown rice content (Yan et al., 2018). Currently, the main research work is on the effect of deep fertilization on rice yield or N utilization efficiencies (Li, Zhang, Tian, Ashraf, Mo et al., 2021; Li, Zhang, Tian, Ashraf, Hamoud et al., 2021; Chen, Fan, Li et al., 2020; Chen, Fan, Mo et al., 2020). However, the effects of deep N fertilization coupled with straw incorporation on nutrient accumulation and grain qualities are not clear.…”

Section: Introductionmentioning

confidence: 99%

Effects of nitrogen deep placement coupled with straw incorporation on grain quality and root traits from paddy fields

Lin

et al. 2021

Crop Science

Self Cite

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The present study was conducted to investigate the effects of deep application of nitrogen (N) fertilizer and straw incorporation on grain yield and quality, nutrient accumulation, and root morphological and physiological traits in both rice (Oryza sativa L.) cultivars during 2019 and 2020. The experimental treatments were comprised of deep N fertilization with (DF+S) and without straw incorporation (DF) as well as broadcasting fertilization with (BF+S) and without straw return (BF). No fertilizer and no straw return treatment were taken as control. Results depicted that the DF+S and DF treatment significantly increased the grain yield by 46.4 and 42.2%, respectively, compared with BF. The DF+S also significantly increased total N accumulation by 37.9 and 44.0%, total phosphorus accumulation by 39.3 and 41.7%, total potassium accumulation by 63.6 and 73.3% for the cultivars Yuxiangyouzahn (YXYZ) and Wufengyou615 at maturity, respectively, compared with BF. Moreover, nutrient accumulation and grain yield of BF+S were slightly higher than BF. Straw incorporation resulted in better total root volume and total root length than no straw incorporation treatments in YXYZ, regardless of fertilizer application method. Root morphology traits are positively associated with other positive traits such as yield or nutrient uptake. The DF+S treatment also significantly increased the milled rice rate and remarkably reduced the chalkiness degree for both rice cultivars, compared to BF treatment. Overall, DF+S is recognized as the optimal method to improve rice productivity and quality with better nutrient acquisition.

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Straw Incorporation Coupled with Deep Placement of Nitrogen Fertilizer Improved Grain Yield and Nitrogen Use Efficiency in Direct-Seeded Rice

Cited by 24 publications

References 40 publications

Influence of planting methods and organic amendments on rice yield and bacterial communities in the rhizosphere soil

Influence of planting methods and organic amendments on rice yield and bacterial communities in the rhizosphere soil

Straw return-enhanced soil carbon and nitrogen fractions and nitrogen use efficiency in a maize–rice rotation system

Effects of nitrogen deep placement coupled with straw incorporation on grain quality and root traits from paddy fields

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