Grain Yield, Dry Weight and Phosphorus Accumulation and Translocation in Two Rice (Oryza sativa L.) Varieties as Affected by Salt-Alkali and Phosphorus

Tian, Zhijie; Li, Jingpeng; He, Xinhua; Jia, Xueying; Fu, Yang; Wang, Zhichun

doi:10.3390/su9081461

Cited by 27 publications

(10 citation statements)

References 57 publications

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“…This indicated that P was at least in part being remobilized from shoot to grain as the plant underwent reproductive development. Thus, as noted by several authors, P remobilized from vegetative organs to the grain could account for about 25-30% of the grain P (Tiryakioǧlu et al 2014;Tian et al 2017;Xie et al 2018). The remaining grain P is taken up during the reproductive phase.…”

Section: Impact Of P On Crop Growth Yield and Nutritional Qualitymentioning

confidence: 73%

Exploring phosphorus fertilizers and fertilization strategies for improved human and environmental health

2020

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Mineral phosphorus (P) fertilizers support high crop yields and contribute to feeding the teeming global population. However, complex edaphic processes cause P to be immobilized in soil, hampering its timely and sufficient availability for uptake by plants. The resultant low use efficiency of current water-soluble P fertilizers creates significant environmental and human health problems. Current practices to increase P use efficiency have been inadequate to curtail these problems. We advocate for the understanding of plant physiological processes, such as physiological P requirement, storage of excess P as phytate, and plant uptake mechanisms, to identify novel ways of designing and delivering P fertilizers to plants for improved uptake. We note the importance and implications of the contrasting role of micronutrients such as zinc and iron in stimulating P availability under low soil P content, while inhibiting P uptake under high P fertilization; this could provide an avenue for managing P for plant use under different P fertilization regimes. We argue that the improvement of the nutritional value of crops, especially cereals, through reduced phytic acid and increased zinc and iron contents should be among the most important drivers toward the development of innovative fertilizer products and fertilization technologies. In this paper, we present various pathways in support of this argument. Retuning P fertilizer products and application strategies will contribute to fighting hunger and micronutrient deficiencies in humans. Moreover, direct soil P losses will be reduced as a result of improved P absorption by plants.

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Section: Impact Of P On Crop Growth Yield and Nutritional Qualitymentioning

confidence: 73%

Exploring phosphorus fertilizers and fertilization strategies for improved human and environmental health

2020

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“…In terms of the HTLR, the HTLR under full-feeding and semi-feeding combine harvesting methods tended to increase with the extension of the harvest date. Since the whole field rice spikes appeared to sag gradually with the maturity of rice, the collision and friction between the spikes and the cutting platform could be more intense [37]. Thus, the falling grains increased under the external force, and the HTLR increased significantly [38].…”

Section: Discussionmentioning

confidence: 99%

Timeliness Harvesting Loss of Rice in Cold Region under Different Mechanical Harvesting Methods

Wang

Sun

et al. 2021

Sustainability

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The yield loss during the process of harvesting is a great challenge in rice production. A suitable harvesting time and harvesting method can help to reduce the yield losses of rice, and decisions about the harvest date have important implications for labor management as well as for agricultural machinery scheduling. Nonetheless, the comprehensive composition of timeliness harvesting loss (THL) and its changing rules for different harvesting methods remain poorly understood. The objective of this study was to determine the effect of harvest date and mechanical harvesting methods on grain dry matter timeliness loss (GDMTL) and mechanical timeliness losses (MTL) of rice in the cold region. To this end, the field experiment was conducted from 45 days after heading (45 DAH) to 59 days after heading (59 DAH), adopting a full-feeding and semi-feeding combine harvester (FCH and SCH) from 2019 to 2020. The results showed that harvest date had a significant effect on GDMTL and four kinds of MTL including header timeliness loss (HTL), cleaning timeliness loss (CTL), un-threshed timeliness loss (UTTL), and entrainment timeliness loss (ETL, only under FCH). With the prolonged harvest date, the HTL and CTL increased and the UTTL and ETL decreased, which ranged from 0.15–0.31%, 0.36–0.67%, 0.72–0.18%, and 0.69–0.31%, respectively for FCH. For SCH, the variation range of HTL, CTL, and UTTL was 0.41–0.59%, 0.66–0.98%, and 0.64–0.21%, respectively. The GDMTL increased first and then decreased, ranging from 2.84–0.87%. The mechanical harvesting methods had no significant effect on the GDMTL of rice, but the MTL could be large between FCH and SCH. In general, optimal harvest period was 52 DAH~53 DAH for both harvesting methods, which exhibited the highest yield and the lowest loss, i.e., 9269.3 kg/hm2 and 1.70%, respectively, and the mechanical operating mode on different harvest dates was recommended to minimize the mechanical loss. The optimal harvest date for rice in a cold region ensured both quality and quantity for mechanized harvesting, and provided a reference for the reasonable allocation of operating harvesters in the harvesting season.

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“…This assessment was made during the mature stage (Tian et al, 2017), which is approximately 100 days after planting for both inflow and outflow regions. A non-saline paddy plot was chosen to observe the paddy growth as a comparison.…”

Section: Paddy Growth Assessment: Height and Yieldmentioning

confidence: 99%

Impact of Saltwater Intrusion on Paddy Growth in Kuala Kedah, Malaysia

Sah¹,

Maulud²,

Sharil³

et al. 2021

JSSM

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Grain Yield, Dry Weight and Phosphorus Accumulation and Translocation in Two Rice (Oryza sativa L.) Varieties as Affected by Salt-Alkali and Phosphorus

Cited by 27 publications

References 57 publications

Exploring phosphorus fertilizers and fertilization strategies for improved human and environmental health

Exploring phosphorus fertilizers and fertilization strategies for improved human and environmental health

Timeliness Harvesting Loss of Rice in Cold Region under Different Mechanical Harvesting Methods

Impact of Saltwater Intrusion on Paddy Growth in Kuala Kedah, Malaysia

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