Improving nitrogen management for zero-tillage rice in China

Huang, Min; Zhou, Xuefeng; Zou, Yingbin

doi:10.1016/j.cj.2018.03.002

Cited by 13 publications

(9 citation statements)

References 24 publications

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“…As an important nutrient element, N plays important roles in many bioprocess in rice and the uptake and utilization of N fertilizer would directly and significantly influence the rice growth and development (Pan et al., 2016; Pan et al., 2017). The results of present experiment were consistent with the findings of (Huang et al., 2018) who indicated that N absorption was delayed in rice planted under zero tillage condition. At the beginning year of continuous zero‐tillage, the volume‐weight of paddy soil would increase as well as porosity and thus let to the increment in nutrient loss and finally decrease the accumulation of all kinds of nutrient.…”

Section: Discussionsupporting

confidence: 93%

“…Dense planting is one of the recommended strategies to improve and/or ensure the grain yield in rice production system on sustained basis (Chen et al., 2019). Early studies showed that increased hill density could compensate the yield losses caused by reduced nitrogen input owing to enhanced the panicle number and leaf area index in machine‐transplanted double‐cropping rice system (Huang et al., 2018) (Xie et al., 2019). Previously, the effects of alterations and/or variations in plant density on yield of rice was largely reported (Huang et al., 2018; Xie et al., 2019), however, the effect of increased number of seedlings per hill on growth and yield of fragrant rice under zero‐tillage condition was rarely investigated.…”

Section: Introductionmentioning

confidence: 99%

“…Early studies showed that increased hill density could compensate the yield losses caused by reduced nitrogen input owing to enhanced the panicle number and leaf area index in machine‐transplanted double‐cropping rice system (Huang et al., 2018) (Xie et al., 2019). Previously, the effects of alterations and/or variations in plant density on yield of rice was largely reported (Huang et al., 2018; Xie et al., 2019), however, the effect of increased number of seedlings per hill on growth and yield of fragrant rice under zero‐tillage condition was rarely investigated. Therefore, present study was conducted in South China with the hypothesis that increased seedlings per hill could compensate the yield loss of fragrant rice due to zero‐tillage condition.…”

Section: Introductionmentioning

confidence: 99%

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Increased seedlings per hill compensates yield loss due to zero tillage in machine‐transplanted fragrant rice

Ashraf

et al. 2020

Crop Science

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Zero tillage is a soil conservation technique. However, reduction in grain yield might be caused without the effects caused by tillage at the beginning of planting. Present study was conducted in order to test the hypothesis that increased seedlings number per hill could compensate for yield decrement under zero tillage. A two‐year field experiment was conducted between 2018 and 2019 with two fragrant rice cultivars and three treatments: convention tillage with normal seedlings number per hill (CTNS); zero tillage with normal seedlings number per hill (ZTNS) and zero tillage with high seedlings number per hill (ZTHS). The results showed that lower leaf area index, dry matter accumulation, accumulation of nitrogen, phosphorus and potassium were observed in ZTNS treatment than CTNS treatment. Compared with CTNS treatment, ZTNS treatment significantly decreased the grain yield by 11.80‐26.65%. However, the differences between ZTHS and CTNS for yield attributes (effective panicle number, grain number per panicle, seed‐setting rate and 1000‐grain weight) and grain yield were generally small during both seasons and at both sites for both cultivars. Therefore, our study indicates that increasing seedlings number per hill could be an effective strategy to compensate the potential negative effects on yield formation and grain yield of fragrant rice under zero tillage.

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Section: Discussionsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Increased seedlings per hill compensates yield loss due to zero tillage in machine‐transplanted fragrant rice

Ashraf

et al. 2020

Crop Science

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“…These results are in conformity with those reported by Singh et al (2014), Yaa et al (2017) and Huang et al (2018).…”

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confidence: 94%

Comparative response of sorghum genotypes to varied levels of nitrogen in rice-fallows of North Coastal Region of Andhra Pradesh

Naik¹,

Murthy²,

Rupesh³

2020

JEB

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Aim: The objective of this research was to find a suitable variety and amount of nitrogen to work out their best combination for accomplishing higher productivity of Sorghum under rice fallow environment in Coastal Zone of South India. Methodology: An experimental trial was carried out with four sorghum genotypes viz., V1- CSH 15R, V2- CSH 16, V3- CSH 25 and V4- MLSH 296 and four nitrogen doses viz., N1: 0 kg N ha-1, N2: 80 kg N ha-1, N3: 100 kg N ha-1 and N4: 120 kg N ha-1.The investigation was outlined in split plot design with three replications. ?? Results: Rice fallow sorghum genotype CSH 25 and supplementation of 120 kg N ha-1 had outstandingly recorded the highest grain weight, higher grain yield and physiological recovery of nitrogen among other genotypes. Nonetheless, in contrast to this, fodder yield was highest with hybrid CSH 15R at 120 kg ha-1, but apparent recovery of nitrogen (%) and soil harvest nitrogen had recorded highest in CSH 16 at same level of nitrogen (120 kg ha-1). Interpretation: It can be terminated that sorghum growers under rice fallow conditions can opt for sorghum genotype CSH 25 (V3) with the supplementation of 120 kg N ha-1 (N4) for? higher yield under rice fallow ecology of North Coastal Region of Andhra Pradesh in South India.

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“…Besides crop management, the fertilization is also a crucial part in rice production. The study of Huang et al (2018b) revealed that both application number and rate of fertilizer had great effects on grain yield and yield related traits of rice under zero tillage system. Zhou et al (2018) demonstrated that high N fertilizer rate applied was able to reduce yield loss caused by cold stress in rice production.…”

Section: Introductionmentioning

confidence: 99%

Different seedling managements and fertilizer rates at tillering stage influences the yield formation and aroma content in fragrant rice

Liu

Luo

et al. 2021

Chil. j. agric. res.

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In fragrant rice (Oryza sativa L. subsp. japonica Kato) production, seedling management and fertilization both are important parts. However, the effects of different seedling managements and fertilizer rates on grain yield and 2-acetyl-1-pyrroline (2-AP, main and key compound of fragrant rice aroma) content of fragrant rice are still unknown. In present study, four seedling managements (mechanized transplanting (MT), mechanized direct-seeding (MDS), seedling throwing (ST) and seeds broadcasting (BS)) combined with three fertilizer rates (450 (Fer1), 600 (Fer2) and 750 (Fer3) kg ha -1 ) at tillering stage were applied in a 2-yr field experiment. The results showed that the grain yield and 2-AP content differed in different seedling management and fertilizer rate treatments. The highest grain yield and 2-AP content were recorded in MTFer3 treatment which were 4.81-4.86 t ha -1 and 307.68-390.99 μg kg -1 FW, respectively, while the lowest were recorded in BSFer1 treatment which were 3.96-4.09 t ha -1 and 62.92-165.09 μg kg -1 FW, respectively. Furthermore, the lowest expression of gene BADH2 related to 2-AP biosynthesis was recorded in MTFer3 treatment. Under the same fertilizer rate treatment, MT treatment produced the highest grain yield and 2-AP content which ranged between 4.49-4.86 t ha -1 and 222.16-390.99 μg kg -1 FW, respectively. Under the same seedling management treatment, the highest or equally highest grain yield and 2-AP content were recorded in Fer3 treatment.

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Improving nitrogen management for zero-tillage rice in China

Cited by 13 publications

References 24 publications

Increased seedlings per hill compensates yield loss due to zero tillage in machine‐transplanted fragrant rice

Increased seedlings per hill compensates yield loss due to zero tillage in machine‐transplanted fragrant rice

Comparative response of sorghum genotypes to varied levels of nitrogen in rice-fallows of North Coastal Region of Andhra Pradesh

Different seedling managements and fertilizer rates at tillering stage influences the yield formation and aroma content in fragrant rice

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