Co‐incorporation of Rice Straw and Green Manure Benefits Rice Yield and Nutrient Uptake

Yang, Liu; Zhou, Xing; Liao, Yulin; Lu, Yanhong; Nie, J.; Cao, Weidong

doi:10.2135/cropsci2018.07.0427

Cited by 61 publications

(38 citation statements)

References 38 publications

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“…Compared with N 100 , N 75 +OICF 25 produced a comparable or a higher N, P and K absorption and utilization efficiency in our study. Similar benefits of combining the chemical N fertilizer with the organic fertilizer have been reported previously (Pan et al, 2009;Liu et al, 2017;Yang et al, 2019). However, OICF 100 significantly decreased the nutrient use efficiency mainly because of the lower dry matter accumulation and nutrient uptake with a single organic-inorganic fertilizer treatment compared with the 100% conventional N fertilizer treatment.…”

Section: N P and K Absorption And Utilization Efficiency For The Difsupporting

confidence: 72%

“…Integrating the chemical N fertilizer with the organic N fertilizer has been suggested as one of the most effective methods to stabilize rice production, while decreasing the N input (Wei et al, 2016;Mi et al, 2018;Singh et al, 2019). Many previous studies showed that the combined use of chemical N fertilizer with organic N fertilizer increased the NUE and the rice grain yield and improved the soil fertility (Xu et al, 2008;Meng et al, 2009;Lv et al, 2017;Yang et al, 2019). Recently, organic-inorganic compound fertilizer (OICF) was introduced as a new type of fertilizer in China (Zhao et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Assessment of productivity, nutrient uptake and economic benefits of rice under different nitrogen management strategies

Yang

Liu

et al. 2020

PeerJ

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Background Integrating a chemical nitrogen (N) fertilizer with an organic fertilizer and using slow-release mechanism are important N management strategies to increase the N utilization efficiency (NUE) and grain yield of rice. However, the performances of both N management strategies on the productivity, the nutrient absorption and utilization efficiency, and the economic benefits of rice have not yet been comprehensively evaluated. Methods A 2-year field experiment was conducted with seven N management strategies without fertilizer (control), 100% conventional N fertilizer (conventional compound fertilizer and urea) (N100), 75% conventional N fertilizer with 25% organic–inorganic compound fertilizer (N75+OICF25), 50% conventional N fertilizer with 50% organic–inorganic compound fertilizer (N50+OICF50), 100% organic–inorganic compound fertilizer (OICF100), slow-release compound fertilizer with urea (SRCF+U), compound fertilizer with sulfur-coated urea (CF+SCU). The responses of the productivity, the nutrient absorption and utilization efficiency, and the economic benefits of rice to the different N management strategies were evaluated. Results CF+SCU performed comparably or better than N100, judging by the grain yield (GY), the N, phosphate (P) and potassium (K) agronomic efficiency (NAE, PAE and KAE), and the apparent N, P and K recovery efficiency (ANRE, APRE and AKRE). SRCF+U significantly increased the GY by an average of 7.7%, the NAE and the ANRE by 23.8 and 26.7%, the PAE and the APRE by 90.6 and 109.3%, and the KAE and the AKRE by 74.2 and 57.7%. The higher GY and nutrient utilization efficiency when using SRCF+U were attributed to the higher total biomass and total nutrient absorption. N75+OICF25 and N50+OICF50 produced a comparable grain yield than N100, whereas a significant yield reduction was observed when using OICF100. Compared with N100, N75+OICF25 resulted in a comparable or higher fertilizer use efficiency (0.3 and 4.7% for NAE and ANRE, 0.3 and 3.2% for PAE and APRE, 0.3 and −2.8% for KAE and AKRE). However, the fertilizer use efficiency when using N50+OICF50 and OICF100 were lower than with N100. The highest net return (NR) (5,845.03 yuan ha−1) and benefit to cost (B:C) ratio (0.34) were obtained when using SRCF+U. The NR and the B:C ratio when using N75+OICF25 were slightly higher than when using N100. However, N50+OICF50 and OICF100 significantly decreased the NR and the B:C ratio compared with N100 by 14.5 and 12.1% and by 35.1 and 29.0%, respectively. Conclusions SRCF+U and CF+SCU enhanced the crop productivity, the nutrient uptake and utilization efficiency, and the economic benefits compared with N100. The comprehensive performance of SRCF+U was better than that of CF+SCU. N75+OICF25 produced almost similar productivity, nutrient uptake and use efficiency compared with N100. It demonstrated that N75+OICF25 stabilized the grain yield production of rice and reduced the input of chemical N fertilizer.

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Section: N P and K Absorption And Utilization Efficiency For The Difsupporting

confidence: 72%

Section: Introductionmentioning

confidence: 99%

Assessment of productivity, nutrient uptake and economic benefits of rice under different nitrogen management strategies

Yang

Liu

et al. 2020

PeerJ

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“…Plant residues, 50% N fertilizer (urea) and total P (superphosphate) and K (potassium chloride) fertilizers were mixed throughout the soil as the basal fertilizer on the day the incubation was set up. An additional 50% N fertilizer was top-dressed at the ear differentiation stages of rice (L. Yang et al, 2019). The volumes of plant residue and inorganic fertilizer applied in each year of the experiment are shown in Table 1.…”

Section: Experimental Designmentioning

confidence: 99%

“…In addition, the practice of co-incorporating rice straw and Chinese milk vetch into paddy soils has become increasingly popular recently (L. Yang et al, 2019;Zhou et al, 2020). Studies have shown that the coincorporation of rice straw and leguminous straw decreased the total CH 4 emission per unit of C applied (Bhattacharyya et al, 2012;Liu et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Co‐incorporation of Chinese milk vetch (Astragalus sinicus L.) and rice (Oryza sativa L.) straw minimizes CH₄ emissions by changing the methanogenic and methanotrophic communities in a paddy soil

Zhou

Gao

et al. 2020

European J Soil Science

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The practice of co‐incorporating rice straw and leguminous green manure (such as Chinese milk vetch) into paddy soils has become increasingly popular in the last 10 years, although its effect on soil CH4 emissions and microbial community structure is poorly understood. In this study, data from a 2‐year pot experiment were used to reveal the effects of the co‐incorporation of rice straw and Chinese milk vetch on CH4 emissions and methanogenic and methanotrophic communities in paddy soil. Five treatments were chosen: CK (unamended control), CF (inorganic fertilizer), FM (inorganic fertilizer and Chinese milk vetch, 20 g 10 kg−1 dry soil, 4.5 t ha−1), FR (inorganic fertilizer and rice straw, 20 g 10 kg−1 dry soil, 4.5 t ha−1) and FMR (inorganic fertilizer and Chinese milk vetch and rice straw mixture, 5 + 15 g 10 kg−1 dry soil, 1.125 + 2.375 t ha−1). Overall, the soil CH4 emissions in the 2 years under all residue treatments (104.4–122.8 and 83.3–133.3 g CH4 m−2) were higher than those in CK (57.0 and 20.7 g CH4 m−2) and CF (71.8 and 21.9 g CH4 m−2) treatments. The FMR treatment decreased CH4 emissions when compared with FM and FR, especially in the second year. A higher abundance of methanogens (mcrA gene copies) was found under the plant residue‐treated soils (4.35 × 108 g−1 dry soil on average) and FM increased the abundance of methanotrophs (pmoA gene copies, 2.68 × 106 g−1 dry soil). Application of plant residues changed the methanogenic and methanotrophic community structures in comparison with CF (e.g., markedly increased the populations of Methanobacteriales and Methylomonas and suppressed Methanomicrobiales and Methylobacter populations). Methane emissions were significantly and positively related to the mcrA and pmoA gene copy numbers, as well as the mcrA/pmoA ratio. The partial least squares path model (PLS‐PM) indicated that the rice plant biomass (path coefficient = 0.64), the abundance of methanogens (path coefficient = 0.57) and the community structure of methanotrophs (path coefficient = −0.59) were determinants of CH4 emissions. Among the three residue‐treated soils, FMR showed the lowest CH4 emissions and was associated with a slight decrease in the mcrA/pmoA ratio and a significant increase in the Type I/Type II methanotrophs ratio. Thus, we recommend the co‐incorporation of Chinese milk vetch and rice straw as a sustainable fertilization pattern to improve the growth of rice and minimize CH4 emissions. Highlights Residue application improves rice productivity (except for FR), soil fertility and CH4 emissions. Co‐incorporation of MV and RS reduces CH4 emissions in comparison with pure MV or RS addition. Residue application changes the community structure of methanogens and methanotrophs. The methanogenic abundance and the methanotrophic community structure determine the CH4 emissions.

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“…Previous studies mostly studied and optimized the characteristics of crop population from the perspective of single factor. At present, many scholars have constructed crop dominant population from the perspective of two factors and multi factor interaction 19,20 . The in uence of photosynthetic coordination of different leaf positions on crop population has also attracted much attention.…”

Section: Introductionmentioning

confidence: 99%

Construction of Rice Under Dry Cultivation Dominant Population by Interaction of Seeding Rate and Nitrogen Rate

Jiang

Thobakgale

et al. 2021

Preprint

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In order to construct the dominant population of rice under dry cultivation, the external characteristics of the population and the photosynthetic physiological characteristics of the upper three leaves were investigated. In this study, a double factor interaction method of seeding rate and nitrogen rate was used to construct the dominant population of rice under dry cultivation. We determined 195 kg·ha-1 seeding rate and 140 kg·ha-1 nitrogen rate as the appropriate configuration. To achieve high yield, high nitrogen utilization and moderate morphological characteristics by coordinating the comprehensive advantages of population spike number and spike grain number, and to increase the photosynthetic potential of the population by coordinating the reasonable distribution of light energy in the upper three leaves to construct the dominant population of rice under dry cultivation. Photosynthetic potential of 105.55m2·d/m2, light energy interception rate of 31.21% in the inverted second leaf and plant height of 101 cm at 10 days after flowering were important external characteristics of the dominant population of rice under dry cultivation. The ability of the inverted second leaf to intercept light energy is the basis for ensuring the photosynthesis of the population. The simultaneous coordination of photosynthetic enzyme activity, net photosynthetic rate and chlorophyll content in the inverted second leaf is an important physiological characteristic of the photosynthetically dominant group. The variation of photosynthetic physiological indexes in the inverted second leaf was characterized by ‘from genes to enzyme activity to net photosynthetic rate and chlorophyll, and the spatial variation was from the upper leaves to the lower leaves’. ‘ Protect the flag, promote the second, stabilize the third ’ (Maintaining photosynthetic capacity of the flag leaf , promoting photosynthetic enzyme activity in the inverted second leaf, and stabilizing photosynthetic gene expression in the inverted third leaf ) is an important tool to construct the dominant population of rice under dry cultivation. These studies have significant implications for the future construction of dominant rice under dry cultivation in different regions and provide an important basis for the study of the regulatory mechanisms of photosynthetic pathways in different leaf positions.

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Co‐incorporation of Rice Straw and Green Manure Benefits Rice Yield and Nutrient Uptake

Cited by 61 publications

References 38 publications

Assessment of productivity, nutrient uptake and economic benefits of rice under different nitrogen management strategies

Assessment of productivity, nutrient uptake and economic benefits of rice under different nitrogen management strategies

Co‐incorporation of Chinese milk vetch (Astragalus sinicus L.) and rice (Oryza sativa L.) straw minimizes CH₄ emissions by changing the methanogenic and methanotrophic communities in a paddy soil

Construction of Rice Under Dry Cultivation Dominant Population by Interaction of Seeding Rate and Nitrogen Rate

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Co‐incorporation of Rice Straw and Green Manure Benefits Rice Yield and Nutrient Uptake

Cited by 61 publications

References 38 publications

Assessment of productivity, nutrient uptake and economic benefits of rice under different nitrogen management strategies

Assessment of productivity, nutrient uptake and economic benefits of rice under different nitrogen management strategies

Co‐incorporation of Chinese milk vetch (Astragalus sinicus L.) and rice (Oryza sativa L.) straw minimizes CH4 emissions by changing the methanogenic and methanotrophic communities in a paddy soil

Construction of Rice Under Dry Cultivation Dominant Population by Interaction of Seeding Rate and Nitrogen Rate

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Co‐incorporation of Chinese milk vetch (Astragalus sinicus L.) and rice (Oryza sativa L.) straw minimizes CH₄ emissions by changing the methanogenic and methanotrophic communities in a paddy soil