Change in phosphorus requirement with increasing grain yield for rice under saline-sodic stress in Northeast China

Wei, Zhanxi; Zhang, Yi; Liu, Zhanfeng; Peng, Mengsu; Wang, Teng; Cao, Ning

doi:10.3389/fenvs.2022.953579

Cited by 3 publications

(2 citation statements)

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“…Crucially, the lion's share of phosphorus is accumulated during the transition from the heading to the maturity stage. Enhancing phosphorus uptake during these late growth stages incrementally bolstered grain yield [39]. The significance of phosphorus extends to other crops as well, where its application has been proven to uplift N-use efficiency, various yield components, and grain and seed yield [40,7,41].…”

Section: Discussionmentioning

confidence: 99%

Comparative seed yields of lowland rice (Oryza sativa L.): evaluating seeds sources and fertilizers

Wahyuni,

Susanti,

Arief

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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The use of high-quality seeds from high-yielding rice varieties (HYV) is crucial for enhancing grain yield. Yet, the supply of certified seed meets only 57.3% of the total rice seed demand, leading some farmers to plant non-certified local rice seeds. A study examining the effects of seed sources and fertilization on seed yields was conducted in Bogor Village, Sukra District, Indramayu Regency during the Dry Season of 2019. The treatments consisted of two factors: A. Seed sources (Local non-certified seed (Local-NC), HYV non-certified seed (HYV-NC), and HYV-certified seed) and B. Fertilization methods (Recommended Fertilizer (RF), RF+BioF, RF+P as top dressing, and RF+N as top dressing). These were designed in a Complete Block Design with three replications. Results showed that Local-NC was more susceptible to BPH and RSB than HYV varieties. Additionally, Local-NC had the highest percentage of off-type plants and produced the lowest grain and seed yields. The addition of P or N fertilizer to RF during the heading stage notably improved the panicle number per hill, 1000-grain, seed yields and rendement. Our findings suggest that optimal rice seed yields can be achieved by planting HYV– certified seeds and applying either RF + 18 kg P ha−1 or RF + 11.5 kg N ha−1 as top dressing.

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Section: Discussionmentioning

confidence: 99%

Comparative seed yields of lowland rice (Oryza sativa L.): evaluating seeds sources and fertilizers

Wahyuni,

Susanti,

Arief

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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“…Nitrogen increases grain yield and quality by accelerating tillering, leaf area and grain formation. Phosphorus concentration influences grain yield in rice and its application at the maturity stage gradually improves its accumulation in leaves, stem and panicle and thus enhances the grain yield in rice [7]. Potassium is an essential macronutrient which plays a key role in various physiological processes, energy transfer, water uptake, nutrient transport and enhances the growth and development in plants [8].…”

Section: Introductionmentioning

confidence: 99%

Enhancing Morpho-Physiological and Yield Potential of Rice using Nutrients and Plant Growth Regulators

Preethi,

Ravichandran,

Prasad

et al. 2023

IJPSS

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Rice (Oryza sativa L.) is one of the major cereals and the staple food crops which is cultivated all over the world. In order to meet the growing demand of population, it is important to increase the productivity of crop. The productivity of crop is influenced by nutrients and growth hormones. With this background, a field experiment was conducted during the month of January-May 2023 at wetland farms, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India to evaluate the effect of different foliar nutrients and growth regulators on growth, physiology, biochemical and yield attributes in rice. The experimental layout was Factorial Randomized Block Design (FRBD) with two varieties (CO55 and ADT 57). The treatments consisted of foliar spray of T1- Control (water spray), T2- Nutrio-hormonal consortia 1, T3- Nutrio-hormonal consortia 2, T4- Rice booster 1 and T5- Rice booster 2 given at the booting stage and 15 days after the first spray. Among the treatments, T5- Rice booster 2 significantly improved leaf area (1813.99 cm2, 2059.78 cm2), leaf area index (4.53, 5.15), crop growth rate (32.07 g/m2/day, 37.89 g/m2/day), chlorophyll index (37.60, 41.73), photosynthetic rate (27.15 µmol CO2 m-2 s-1, 30.04 µmol CO2 m-2 s-1), Transpiration rate (11.83 mmol H2O m-1 s-1, 14.20 mmol H2O m-1 s-1 ), soluble protein content (16.23 mg/g, 17.30 mg/g), nitrate reductase activity (98.15 µg of NO2/g/h, 112.47 µg of NO2/g/h) in ADT- 57 variety at both sprays, respectively. Foliar application of rice booster 2 (T5) resulted in higher number of productive tillers (23), number of spikelets per panicle (165.5), spikelet fertility (95.48%), 1000 grain weight (17.35g), grain yield/ plant (31.40g), grain yield/hectare (6694.32 Kg/ha), harvest index (45.44%) in ADT 57 and resulted in 15% yield increment over the control. Thus the present study concluded that the foliar application of rice booster 2 (T5) significantly improved the growth, physiology, biochemical and yield attributes in rice variety ADT 57.

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Mitigating Ammonia Volatilization without Compromising Yield and Quality of Rice through the Application of Controlled-Release, Phosphorus-Blended Fertilizers

et al. 2023

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Ammonia (NH3) volatilization from paddy fields is a major issue which leads to poor fertilizer use efficiency and is considered a severe threat to the atmosphere. The previous research studies gave importance to the use of nitrogen fertilizers to mitigate NH3 volatilization, while very little emphasis was given to the role of other fertilizers, such as phosphorus (P), for the alleviation of NH3 volatilization in rice fields. Considering P importance herein, we conducted two consecutive field experiments using an innovative, controlled-release, phosphorus-blended fertilizer (CRPBF, with levels CRP0, CRP1, and CRP2). We compared CP0 (in which no fertilizer was applied), CP1 (112.5 kg P ha−1 P of locally recommended fertilizers), and CP2: (P and K blended fertilizers) to determine the best possible way to reduce NH3 volatilization without affecting the yield and quality of rice. The results of the study suggested that the yield of rice increased significantly with the application of CRP1 (11.11 t ha−1) and CRP2 (11.99 t ha−1). The addition of CRP1 and CRP2 to the rice field also enhanced yield-related components, i.e., panicle weight, total spikelets per unit area, spikelets per panicle, and above-ground biomass. CRP0 showed a lower yield and related components when compared to CP2. The addition of CRP1 and CRP2 demonstrated lower protein contents when compared to other treatments. The CRPBF application improved starch content and taste scores, and reduced the chalkiness of the rice grain during both years. The results showed a decreasing trend in NH3 volatilization from CRPBF amendments by improving the nitrogen use efficiency traits when compared to other treatments: CRP2, CRP1, and CRP0 reduced NH3 volatilization by 45%, 35%, and 15%, respectively. The results of this study indicate that, due to the episodic nature of NH3 volatilization, CRPBFs with 50% P and 100% P can markedly reduce NH3 volatilization from paddy fields without compromising the yield and quality of the crop, and could be a promising alternative to the ordinary commercial fertilizers used in rice fields.

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Change in phosphorus requirement with increasing grain yield for rice under saline-sodic stress in Northeast China

Cited by 3 publications

References 38 publications

Comparative seed yields of lowland rice (Oryza sativa L.): evaluating seeds sources and fertilizers

Comparative seed yields of lowland rice (Oryza sativa L.): evaluating seeds sources and fertilizers

Enhancing Morpho-Physiological and Yield Potential of Rice using Nutrients and Plant Growth Regulators

Mitigating Ammonia Volatilization without Compromising Yield and Quality of Rice through the Application of Controlled-Release, Phosphorus-Blended Fertilizers

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