Integrated Phosphorus Placement and Form for Improving Wheat Grain Yield

Lu, Dianjun; Song, Hang; Jiang, Shangtao; Chen, Xiaoqin; Wang, Huoyan; Zhang, Jianmin

doi:10.2134/agronj2018.09.0559

Cited by 11 publications

(3 citation statements)

References 32 publications

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“…However, this practice has generated controversies regarding its efficiency due to the low mobility of P in soil. Short-term experiments usually support these controversies (Hansel, Ruiz Diaz, Amado, & Rosso, 2017b;Lu et al, 2019;Rosendo dos Santos et al, 2018), which contributes to further fuel the doubts of farmers. In long-term experiments, with adequate soil P levels and a well-established production system, results generally point to similar crop yields in both application methods (Coelho, Diaz, Hettiarachchi, Hansel, & Pavinato, 2019;Nunes, de Sousa, Goedert, & Vivaldi, 2011;Preston, Ruiz Diaz, & Mengel, 2019).…”

Section: Core Ideasmentioning

confidence: 99%

Long‐term phosphate fertilization strategies evaluation in a Brazilian Oxisol

et al. 2020

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There are concerns related to the application of phosphate fertilizers to weathered soils that present low soil test phosphorus (STP) due to P adsorption in iron oxyhydroxides. Furthermore, long-term trials are needed to evaluate crop response to corrective P fertilization and its interaction with different maintenance P fertilization strategies in these soils. An experiment involving the combination of three initial corrective P fertilization schemes (control without P correction or with the application of 105 kg P ha −1 as triple superphosphate [TSP] or reactive rock phosphate [RRP]), four P maintenance strategies (a control without the application of maintenance P, or 35 kg P ha −1 yr −1 as TSP, RRP, or a mix of both) and two application methods was cultivated during 16 yr at the Embrapa Cerrados experimental station in Planaltina, DF, Brazil. Corrective P fertilization promoted an early crop yield response. In contrast, high crop yields were only obtained in control treatments with no corrective P fertilization after soil P stocks were increased to a minimum level. With increasing P stocks, broadcast application resulted in slightly better yields. The required residual P stocks in soil to obtain high yields were estimated as equivalent to 113.6 and 205.2 kg P ha −1 for TSP and RRP, respectively. These values allow for STP contents to increase to critical levels, whose value for TSP of 4.1 mg kg −1 Mehlich-1 P is below that recommended for the region, possibly due to the contribution of organic P forms in the long-term no-tillage system.

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Section: Core Ideasmentioning

confidence: 99%

Long‐term phosphate fertilization strategies evaluation in a Brazilian Oxisol

et al. 2020

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“…Crop P removal, P surplus and phosphorus of recovery efficiency (PRE) were calculated by the following formulas according to Devkota et al and Lu et al [43,44].…”

Section: Data Calculation and Analysismentioning

confidence: 99%

Optimizing Phosphorus Fertilizer Use on the Loess Plateau: Impact on Soil Properties and Crop Production Efficiency

Liang,

Liu,

Feng

et al. 2023

Soil Systems

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Various phosphorus (P) fertilizers are commonly utilized in agricultural production on the Loess Plateau. However, there exists a widespread issue of improper matching between P fertilizers, crop types, and soil types. This study proposes a scientifically based approach to managing phosphate fertilizer through a matching experiment. A field experiment was conducted to investigate the effects of different P fertilizers on soil P profiles in a wheat–corn rotation between October 2017 and September 2021. The experiment adopted a randomized block design. P fertilizer was applied as a basal fertilizer at rates of 115 kg P2O5 ha−1 during the wheat season and 90 kg P2O5 ha−1 during the maize season. Nitrogen (N) fertilizer application rates were 120 kg N ha−1 for wheat and 180 kg N ha−1 for maize. N fertilizer was divided into two applications, with 60% applied at pre-planting and 40% at the jointing stage of wheat or the V12 stage of maize. P fertilizer variants utilized in the study included ammonium dihydrogen, ammonium phosphate, calcium-magnesia phosphate fertilizer, calcium superphosphate, and ammonium polyphosphate. The transformation process of phosphate was examined, revealing that the commonly considered dominant diammonium phosphate fertilizer was not the optimal choice in this production system. Ammonium polyphosphate, calcium superphosphate, and ammonium dihydrogen were deemed more suitable for application in Loess soil. Furthermore, an analysis was conducted on the relationship between P fractions, soil properties, and soil Olsen-P. This research emphasizes the significance of strategic phosphate fertilizer use in agriculture to ensure efficient production and to help address the global P scarcity.

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“…The amount of exchangeable Mg of the soils was 104 mg kg −1 and measured by using ammonium acetate (NH 4 OAc) method described by Rice and Kamprath (1968). The Olsen-P and NH 4 OAc-exctractable K of the soils were 6.1 mg kg −1 and 190 mg kg −1 which were determined according to Lu D. et al (2017) and Lu et al (2019), respectively.…”

Section: Site Descriptionmentioning

confidence: 99%

Magnesium Deficiency Reduced the Yield and Seed Germination in Wax Gourd by Affecting the Carbohydrate Translocation

Zhang

Çakmak

et al. 2020

Front. Plant Sci.

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Magnesium (Mg) is a particular mineral nutrient greatly affecting the size and activity of sink organs. Wax gourd crop with its fruits having fresh weight up to 20-50 kg per single fruit serves as an excellent experimental plant species for better understanding the role of varied Mg nutrition in sink strength and yield formation. This study aimed to investigate the effects of Mg deficiency on fruit yield and seed vigor in wax gourd grown under field conditions. Plants were grown under field conditions until maturity with increasing soil Mg applications. At the beginning of fruit formation, leaves were used to analyze concentrations of sucrose, starch and Mg as well as phloem export of sucrose. At maturity, fruit yield was determined and the seeds collected were used in germination studies and starch analysis. Low Mg supply resulted in a significant impairment in fruit fresh yield, which was closely associated with higher accumulation of starch and sucrose in source leaves and lower amount of sucrose in phloem exudate. Seeds obtained from Mg deficiency plants exhibited lower amount of starch and substantial reduction in both germination capacity and seedling establishment when compared to the seeds from the Mg adequate plants. Our study revealed that magnesium deficiency significantly diminished fruit yield of field-grown wax gourd, most probably by limiting the carbohydrate transport from source organs to developing fruit. Ensuring sufficient Mg supply to plant species with high sink size such as wax gourd, during the reproductive growth stage, is a critical factor for achieving higher fruit yield formation and also better vigor of next-generation seeds.

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Integrated Phosphorus Placement and Form for Improving Wheat Grain Yield

Cited by 11 publications

References 32 publications

Long‐term phosphate fertilization strategies evaluation in a Brazilian Oxisol

Long‐term phosphate fertilization strategies evaluation in a Brazilian Oxisol

Optimizing Phosphorus Fertilizer Use on the Loess Plateau: Impact on Soil Properties and Crop Production Efficiency

Magnesium Deficiency Reduced the Yield and Seed Germination in Wax Gourd by Affecting the Carbohydrate Translocation

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