phosphorus fertilizer
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Author(s):  
Yongzhuang Wang ◽  
Xiangying Peng ◽  
Joann K. Whalen ◽  
Yi Shi ◽  
Caiyan Lu ◽  
...  
Keyword(s):  

2022 ◽  
Author(s):  
Zihan Wang ◽  
Yulong Yin ◽  
Yingcheng Wang ◽  
Xingshuai Tian ◽  
Hao Ying ◽  
...  

Abstract Sustainably feeding the growing population in China attracts attention globally. Despite practices success, producing enough food to simultaneously address resource and pollution problems has been infeasible. To assess how to achieve this goal in 2035, we created a pathway that synergistic combining improved managements and cropland redistribution based on 11.1 million farmer surveys and 4,272 georeferenced field observations. Here, we firstly selected the practices of top 10% performers in crop yield and nitrogen (N) efficiency as crop-specific attainable improved managements at the county level. The optimized crop distribution within improved managements was then performed to minimize inputs (N and phosphorus fertilizer, irrigation water) or environmental impacts (reactive N [Nr] loss and greenhouse gas [GHG] emissions). We identified that combing improved managements and cropland redistribution could produce enough food demands in 2035, with 24% more production compared to 2012. It also reduced the inputs and environmental impacts in a range of 19%-35%, mainly sourced from the central and eastern coastal areas by improved productivity and diminished cropland of fruit and vegetables. These findings highlight the necessity for a synergistic combination of measures to sustainably feed the growing population and establish a more realistic and effective policy.


2022 ◽  
Vol 275 ◽  
pp. 108325
Author(s):  
Huijie Li ◽  
Jiawei Wang ◽  
Xiaolin Huang ◽  
Zhiguo Zhou ◽  
Shanshan Wang ◽  
...  

2022 ◽  
Vol 301 ◽  
pp. 113818
Author(s):  
R. Elliott Carver ◽  
Nathan O. Nelson ◽  
Kraig L. Roozeboom ◽  
Gerard J. Kluitenberg ◽  
Peter J. Tomlinson ◽  
...  

2021 ◽  
Vol 23 (2) ◽  
pp. 28-35
Author(s):  
Karwan Fatah Maaruf ◽  
◽  
Nask Ahmed Saeed ◽  
Nawroz Abdul-razzak Tahir ◽  
◽  
...  

Author(s):  
Ahmed A. M. Awad ◽  
AlShaymaa I. Ahmed ◽  
Atef A.A. Sweed

Under Egyptian soil conditions, when phosphorus fertilizers were applied to the soil, it gets fixed and converts to unavailable form, leading to low solubility for the plant. This study were fulfilled on sweet potato (cv. Beauregard) under undesirable soil properties (CaCO3 10.8 vs 11.3%) using Bacillus megaterium DSM 2894 strain under different five mono calcium phosphate (CSP) levels [(69(CSP20); 138(CSP40); 207 (CSP60); 276 (CSP80) and 345 ((CSP100) kg ha-1 of calcium superphosphate (CSP)] to arise the potential efficiency of some nutrients uptake and decease the applied total amount of CSP in 2019 and 2020 seasons. The results mentioned that highest values were obtained by inoculated plants with DSM2894 strain under 20, 60 and 100% of CSP for all studied nutrients content in both seasons, except Mn content in the 2019. Also, inoculated plants with DSM2894 under previous treatments for all tuberous root nutrients content, except Fe and Zn contents in both seasons, in addition protein and anti-radical power and total yield. Statistically, leaf nutrients uptake and tuberous root content were highly significant affected by DSM and CSP combination. Appling of phosphorus fertilizer with DSM2894 mixture was gave the best values as compared with phosphorus fertilizer or DSM2894, individually.


Author(s):  
M.B. Gonyane ◽  
E.T. Sebetha

Background: Soybean [Glycine max (L.) Merrill] is an annual herbaceous leguminous grain crop which is cultivated mainly for its oil and protein. The objective of the study was to determine the effects of plant density and zinc added to phosphorus fertilizer sources on soybean yield performance under different environmental conditions. Methods: A field trial was executed in two sites during the 2018/19 and 2019/20 summer planting seasons. The experimental design involved a 2 × 2 × 5 factorial fitted into a randomized complete block design (RCBD) with four replications. The experiment consisted of two plant densities, a lower plant density of 66 666 plants/ha and a higher plant density of 111 111 plants/ha. The five different types of fertilizer treatments were single superphosphate, monoammonium phosphate, zinc sulphate added to single superphosphate, zinc sulphate added to monoammonium phosphate and control. Result: The results showed that plant density has a significant effect (P less than 0.05) on soybean number of pods per plant and the field biomass yield. Soybean planted under lower plant density conditions produced a significantly larger number of pods per plant during both planting seasons, whereas higher plant density conditions resulted in a higher soybean field biomass yield during the 2018/19 planting season. It was observed that soybean treated with monoammonium phosphate had higher seed mass.


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