Growth and yield of cotton as affected by different straw returning modes with an equivalent carbon input

Ma, Linjie; Kong, Fanxuan; Zhi, Wang; Ying, Luo; Lv, Xiaobing; Zhou, Zhiguo; Meng, Yali

doi:10.1016/j.fcr.2019.107616

Cited by 71 publications

(31 citation statements)

References 60 publications

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“…In addition, returning straw can improve soil fertility, improve soil physical and chemical properties, and enhance microbial characteristics of the soil. As important technical measures in agricultural production, the combination of a no-till system and straw mulching not only improved soil water, fertilizer, and gas conditions [5,38,39], but also increased surface coverage and reduced surface runoff [38,40,41]. The comprehensive effects of management measures such as nutrients, water, and fertilizer were conducive to an increase in rice yield.…”

Section: Discussionmentioning

confidence: 99%

Effects of no-till and rice varieties on nitrogen and phosphorus balance in rice fields

Yang

Chen

et al. 2020

Environ Sci Eur

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Background: Nutrient balance in rice paddy fields can change under different tillage management practices; however, the extent of the change may differ for various rice varieties. A field experiment was conducted over 2 successive years to clarify the effects of no-till and rice varieties on the apparent balance of nitrogen (N) and phosphorus (P). Four treatments: no-till/japonica rice (NTJ), no-till/glutinous rice (NTG), conventional tillage/japonica rice (CTJ), and conventional tillage/glutinous rice (CTG) with three replicates of each were established to test the hypothesis that no-till and japonica rice can improve the apparent balance of nutrients. Results: The tillage method and rice variety had interactive effects on the apparent balance of N and P. After the 2-year experiment, total N and P pools in the 20 cm surface soil layer were highest under the NTJ treatment (4757.0 kg N ha −1 , 2428.5 kg P ha −1) and lowest under the CTG treatments (4726.3 kg N ha −1 , 2412.0 kg P ha −1). Under no-till conditions, japonica rice had higher grain yield but lower straw biomass than that of glutinous rice. NTG treatment significantly increased the N and P content in rice grains and straw. The environmental losses of N and P in the rice fields mainly occurred during the rice season. Based on nutrient balance estimation, N losses in the NTJ, NTG, and CTJ treatments were reduced by 15.03 kg N ha −1 , 11.55 kg N ha −1 , 6.72 kg N ha −1 , respectively, as compared with that of the CTG treatment. The corresponding P losses were reduced by 8.02 kg P ha −1 , 7.84 kg P ha −1 , and 3.96 kg P ha −1. In terms of economic benefits, NTJ also resulted in the highest actual income (2724.25 US dollars) and the highest ratio of production investment (6.40). Conclusion: No-till was more likely to maintain soil N and P nutrients than conventional tillage, and this advantage was most significant when planting japonica rice. In addition, no-till was conducive to N and P uptake by rice, but only japonica rice exhibited increased grain yield. Consequently, the NTJ treatment was recommended to improve the N and P balance.

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Section: Discussionmentioning

confidence: 99%

Effects of no-till and rice varieties on nitrogen and phosphorus balance in rice fields

Yang

Chen

et al. 2020

Environ Sci Eur

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“…In this study, higher root dry weight under plow tillage treatment than rotary tillage treatment indicated that continuous plow tillage promoted better soil conditions for root growth and development, something to which the improvement of soil organic matter likely contributed substantially. Indeed, research by Ma et al 2019revealed a significant influence of soil organic matter on crop productivity and Ma et al (2019) also showed that the main reason of increased cotton (Gossypium hirsutum L.) yield under straw return cultivation was that straw return treatments promoted soil organic matter, thereby enhancing root growth. Early studies revealed that excessive soil fragmentation under rotary tillage would reduce the ability of the soil to regulate water, air, and heat, while decreasing soil biodiversity in paddy fields.…”

Section: Discussionmentioning

confidence: 99%

Benefits of continuous plow tillage to fragrant rice performance

et al. 2020

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Tillage is one of the most important management practices in rice (Oryza sativa L.) production. However, reports comparing fragrant rice performance under plow tillage vs. rotary tillage are scarce. Here we conducted a five-season field experiment with a fragrant rice cultivar, Meixiangzhan-2, to study the effects of continuous plow tillage on fragrant rice yield, quality, and grain concentration of 2-acetyl-1-pyrroline (2-AP), compared with conventional rotary tillage. The results showed that after three cropping seasons of continuous plowing, compared with conventional rotary tillage, plow tillage not only significantly increased grain yield and affected panicle number per area by 2.98-11.43% and 4.45-18.81%, respectively, but also promoted grain 2-AP concentration and protein content by 17.27-31.46% and 3.94-7.10%, respectively. Moreover, plow tillage decreased grain amylose content by 1.83-3.52%. Compared with conventional rotary tillage, continuous plow tillage also significantly increased dry matter weight of fragrant rice at maturity as well as total N, P, and K accumulation in plant tissues. Moreover, the net income of fragrant rice under plow tillage was US$114.05-526.85 higher than rotary tillage per hectare in the last three cropping seasons. In conclusion, continuous plow tillage enhances fragrant rice performance (yield, quality, aroma) relative to rotary tillage. Our results also improve the scientific database on effects of tillage on rice production.

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Section: Discussionmentioning

confidence: 99%

Effects of no-till and rice varieties on nitrogen and phosphorus balance in rice fields

Yang

Chen

et al. 2020

Preprint

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Background: Nutrient balance in rice paddy fields can change under different tillage management practices; however, the extent of the change may differ for various rice varieties . A field experiment was conducted over 2 successive years to clarify the effects of no-till and rice varieties on the apparent balance of nitrogen (N) and phosphorus (P). Four treatments: no-till/japonica rice (NTJ), no-till/glutinous rice (NTG), conventional tillage/japonica rice (CTJ), and conventional tillage/glutinous rice (CTG) with three replicates of each were established to test the hypothesis that no-till and japonica rice can improve the apparent balance of nutrients. Results: The tillage method and rice variety had interactive effects on the apparent balance of N and P. After the 2-year experiment, total N and P pools in the 20 cm surface soil layer were highest under the NTJ treatment (4757.0 kg N ha -1 , 2428.5 kg P ha -1 ) and lowest under the CTG treatments (4726.3 kg N ha -1 , 2412.0 kg P ha -1 ). Under no-till conditions, japonica rice had higher grain yield but lower straw biomass than that of glutinous rice. NTG treatment significantly increased the N and P content in rice grains and straw. The environmental losses of N and P in the rice fields mainly occurred during the rice season. Based on nutrient balance estimation, N losses in the NTJ, NTG, and CTJ treatments were reduced by 15.03 kg N ha -1 , 11.55 kg N ha -1 , 6.72 kg N ha -1 , respectively, as compared with that of the CTG treatment. The corresponding P losses were reduced by 8.02 kg P ha -1 , 7.84 kg P ha -1 , and 3.96 kg P ha -1 . In terms of economic benefits, NTJ also resulted in the highest actual income [2724.25 US dollars] and the highest ratio of production investment (6.40). Conclusion: No - till was more likely to maintain soil N and P nutrients than conventional tillage, and this advantage was most significant when planting japonica rice. In addition, no-till was conducive to N and P uptake by rice, but only japonica rice exhibited increased grain yield. Consequently, the NTJ treatment was recommended to improve the N and P balance.

show abstract

Growth and yield of cotton as affected by different straw returning modes with an equivalent carbon input

Cited by 71 publications

References 60 publications

Effects of no-till and rice varieties on nitrogen and phosphorus balance in rice fields

Effects of no-till and rice varieties on nitrogen and phosphorus balance in rice fields

Benefits of continuous plow tillage to fragrant rice performance

Effects of no-till and rice varieties on nitrogen and phosphorus balance in rice fields

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