13 results on '"Rehman, Sana ur"'
Search Results
2. Unraveling the potential of microbes in decomposition of organic matter and release of carbon in the ecosystem
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Raza, Taqi, Qadir, Muhammad Farhan, Khan, Khuram Shehzad, Eash, Neal S., Yousuf, Muhammad, Chatterjee, Sumanta, Manzoor, Rabia, Rehman, Sana ur, and Oetting, Joel Nathaniel
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- 2023
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Catalog
3. Numerical Modeling and Experimental Validation of Icing Phenomena on the External Surface of a U-Bend Tube.
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Ishaque, Shehryar, Rehman, Sana ur, and Kim, Man-Hoe
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HEAT exchangers ,HEAT transfer ,SURFACE phenomenon ,SURFACE temperature ,LOW temperatures ,LIQUEFIED natural gas - Abstract
The regasification of liquefied natural gas (LNG) is a crucial process that involves certain challenges created by the low temperature of LNG and the risk of ice formation on the external surfaces of the tubes of heat exchangers, which can hinder heat transfer and increase flow resistance. This study presents a numerical model for ice formation on the external surface of the U-bend tube of shell-and-tube heat exchangers. The numerical model has been further enhanced by applying a custom user-defined function. The numerical results were validated using experimental data and demonstrated excellent predictive capability, particularly for the surface temperature of the tubes and the thickness of the ice layer. Hence, this model can reliably capture the overall behavior of the ice formation on the external surfaces of the tubes of shell-and-tube heat exchangers. By highlighting the importance of maintaining stable heat transfer conditions to prevent freezing, this study offers valuable insights that can guide the optimization of heat exchanger designs for LNG regasification. [ABSTRACT FROM AUTHOR] more...
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- 2024
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4. Chapter 8 - Effectiveness of titanium treatment on photosynthesis and production in crop plants under stress conditions
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Hussain, Sajad, Mumtaz, Maryam, Brestic, Marian, Parveen, Abida, Ulhassan, Zaid, Hou, Harvey J.M., Skalicky, Milan, Yasin, Hassan Shehryar, Bin Khalid, Muhammad Hayder, Saeed, Amjad, Ahmad, Irshan, Allakhverdiev, Suleyman I., Rehman, Sana Ur, and Yang, Wenyu more...
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- 2023
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5. A Scrutiny Of Complex Insecurity And Development Of National Government In Afghanistan.
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Qadeer, M., Shabbir Ahmad, Hafiz Muhammad, Rehman, Sana Ur, Khaliq, HafizHussnain, and Azam, Muhammad
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FEDERAL government ,INTERVENTION (Federal government) ,DEMOCRATIZATION ,ETCHING - Abstract
The inspection stems after the yearning for the authenticity of the courses of action of the Afghan government interventions. In direction to break this reality, I focused on the substance of the public culture plan and begin that the etching of the public power relationship generally twirls around the example of democratization rather than spreading out an affiliation. In the second piece of this article, I drove a near groundwork assessment of the Soviet Union and Afghanistan in the Taliban period to ponder the relationship between the Pashtun "semi state" foundation and the degree of political shortcoming. I construe Pashtun battled with critical state relationship for striking help, which subsequently expanded political struggle and crippled the attainability of state foundations. At this point, I will take critical measures to focus on the speculative causal parts related the orientation of Pashtun other than radical variability. I found that is through the Soviet period, locales with Pashtun showed higher political shortcoming than areas without Pashtun PSI. Anyway, through is Taliban period, the result wasthe reverse, and the political aggravation in southern Afghanistan reduced. [ABSTRACT FROM AUTHOR] more...
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- 2022
6. List of contributors
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Ahmad, Irshan, Allakhverdiev, Suleyman I., Ashaduzzaman, Md, Badshah, Syed Lal, Bin Khalid, Muhammad Hayder, Brestic, Marian, Brudvig, Gary W., Bryant, Donald A., Burpo, F. John, Chen, Yuwu, Chistoserdov, Andrei, Daigle, Julia, Didaran, Fardad, Duan, Xiaoxiao, Duncan, Kate J., Elhefnawy, Sahar M., Elsheery, Nabil Ibrahim, Ghasemi-Soloklui, Ali Akbar, Golbeck, John H., Gorka, Michael, Gray, Kimberly, Gruszecki, Elijah, Gu, Liping, Hastings, Gary, He, Qingfang, Hou, Harvey J.M., Hussain, Sajad, Jiang, Dianlu, Johnson, John Christy, Johnson, Peter Anto, Kang, Qing, Kaur, Divya, Kordrostami, Mojtaba, Lakshmi, K.V., Landry, Patrick, Li, Xiang, Li, Xiao, Lindsey, Jonathan S., Liu, Yinghui, Luo, Lujun, Malnati, Amanda, Mumtaz, Maryam, Nagelli, Enoch A., Nawaz, Taufiq, Niederman, Robert A., Ning, Shangbo, Obrzut, Natalia, Pan, Shanlin, Parveen, Abida, Poddutoori, Prashanth K., Qiu, Yeyan, Redding, Kevin, Rehman, Sana Ur, Saeed, Amjad, Salehi, Bahare, Shi, Zhaoyang, Skalicky, Milan, Soulier, Nathan T., Strange, Lyndi E., Taniguchi, Masahiko, Ulhassan, Zaid, van der Est, Art, Wang, Dunwei, Wang, Lijun, Wang, Qiang, Wang, Yanhui, Wang, Yu, Wang, Yingchun, White, Rebekah, Woronowicz, Kamil, Wu, Yusheng, Xu, Wu, Xue, Yong, Yang, Wenyu, Yasin, Hassan Shehryar, Zhao, Nan, Zhou, Feimeng, and Zhou, Ruanbao more...
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- 2023
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7. Unani Medicine: Significance of Asbab-e-Sitta Zarooriya in times of Pandemic COVID-19.
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Fatma, Araf, Perveen, Aisha, Rehman, Sana Ur, and Khan, Rabia
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ARAB medicine ,SARS-CoV-2 ,COVID-19 ,DISEASES ,FRESH water ,INCUBATION period (Communicable diseases) - Abstract
SARS COV-2 belongs to the beta coronavirus genera, it is believed that bats as warm-blooded flying vertebrates are ideal hosts for coronavirus gene source. COVID-19 caused by novel coronavirus was originated from Wuhan city of Hubei Province in China in December 2019. The common symptoms comprise fever, cough, malaise, and shortness of breath. The incubation period is between 2 - 14 days. In this paper we have deliberated the structure of viruses; varying symptoms among COVID-19, SARS, MERS, and approach to tackling this problem with utmost effective Unani alternatives. Unani medicine endeavors to find the best conceivable ways by which a person can lead a hale and hearty life with minimum or zero sicknesses. Unani scholars believe by practicing important things like the use of fresh and clean water, breathing clean air and eating fresh food, upholding a balance between the mind and the body so that the metabolic processes can function effortlessly and the body wastes are evacuated, by enhancing immunity, and keeping an equilibrium between (Asbab-e-Sitta Zarooriya) six essential factors for life one can stay away from diseases. [ABSTRACT FROM AUTHOR] more...
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- 2021
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8. Leaching Behavior of Pb and Cd and Transformation of Their Speciation in Co-Contaminated Soil Receiving Different Passivators.
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Mehmood, Sajid, Imtiaz, Muhammad, Bashir, Saqib, Rizwan, Muhammad, Irshad, Sana, Yuvaraja, Gutha, Ikram, Muhammad, Aziz, Omar, Ditta, Allah, Rehman, Sana Ur, Shakeel, Qaiser, Mumtaz, Muhammad Ali, Ahmed, Waqas, Mahmood, Sammina, Chen, Di-Yun, and Tu, Shuxin more...
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SOIL pollution ,LEAD ,CADMIUM ,HEAVY metals ,SOIL amendments - Abstract
Excessive release of heavy metals in ecosystem poses a serious threat to human beings and food security. Remediation of metals from contaminated soils is considered a complicated task for environmental safety. Among different techniques, immobilization of heavy metals using soil amendments has attained a greater attention as a promising solution for heavy metal remediation. A column leaching experiment was planned to estimate the influence of biochar (BC), slag (SL), and ferrous manganese ore (FMO) at 3% and 6% application rate on lead (Pb) and cadmium (Cd) leaching behavior and chemical fractionation in artificially contaminated soil. A sequential extraction procedure (Community Bureau of Reference), toxicity characteristic leaching procedure, and CaCl
2 were performed after leaching was completed. Results showed that metal movements in the control soil were increased drastically, while with the addition of BC at 6% rate significantly reduced the Cd and Pb contents in the leachate. Greater reduction in acid soluble portion was observed in Cd by 35% and in Pb by 52% in the upper layer (L1) at 6% BC rate, while in L2 Cd was decreased by 32% and Pb by 51% when BC was added at 6% application rate. Similarly, CaCl2 extractable Pb (30.5%) and Cd (27.2%) in the upper soil layer were decreased with BC at a 6% rate. The application of SL also showed prominent reduction in heavy metal mobility. However, FMO incorporation showed the slight decrease in Pb and Cd mobility in contaminated soil. Overall, BC can be considered an efficient soil amendment to reduce Pb and Cd leaching, as well as increased stabilization within the soil profile. [ABSTRACT FROM AUTHOR] more...- Published
- 2019
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9. Soil organic carbon sequestration and modeling under conservation tillage and cropping systems in a rainfed agriculture.
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Rehman, Sana ur, Ijaz, Shahzada Sohail, Raza, Muhammad Ali, Mohi Ud Din, Atta, Khan, Khalid Saifullah, Fatima, Shroz, Raza, Taqi, Mehmood, Sajid, Saeed, Amjad, and Ansar, Muhammad
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CONSERVATION tillage , *DRY farming , *CROPPING systems , *GREENHOUSE gas mitigation , *CARBON sequestration , *ATMOSPHERIC carbon dioxide , *NO-tillage - Abstract
Conservation agriculture is a well-established method for promoting carbon sequestration and reducing greenhouse gas emissions, but little is known about how it affects subtropical dryland farming systems. The goal of this study was to evaluate the potential of conservation agriculture in Pakistan's subtropical dryland to reduce atmospheric CO 2 enrichment and alter soil organic carbon fractions. In a field experiment, fallow-wheat (farmers' practice) and the conservation tillage methods minimum tillage (MT), reduced tillage (RT), and zero tillage (ZT) were compared to conventional tillage (CT) in the main plots and the cropping systems sorghum-wheat (S-W) and mungbean-wheat (M-W) to fallow-wheat (F-W) in the sub-plots. Multiple assessments taken over a two-year period revealed that CT plots lacked greater soil organic carbon and its fractions than ZT and RT plots. In comparison to CT, ZT, and RT exhibited higher average total organic carbon (TOC), microbial biomass carbon (MBC), particulate organic carbon (POC), and mineral-associated organic carbon (MOC) concentrations, respectively, of 1.43% and 1.31%, 4.61% and 2.83%, 2.42% and 1.97%, and 1.66% and 1.76%. In comparison to the S-W cropping system, the F-W and M-W cropping systems showed increased MBC and MOC, but POC and TOC were little impacted. The maximum TOC (0.589% and 0.589%), MBC (0.021% and 0.021%), POC (0.195% and 0.192%), and MOC (0.489% and 0.485%) were found in the combinations of ZT with F-W and M-W. Regardless of the cropping systems, cumulative CO 2 flow was lowest in ZT plots compared to the other tillage techniques. The CENTURY model confirmed that the use of continuous tillage is a major threat to both soil fertility and production. The study, therefore, concludes that ZT and RT systems in particular are potential possibilities for carbon sequestration in subtropical dryland soils for CO 2 reduction. • Soil organic carbon and fractions affecting by tillage practices. • Emissions of CO 2 and carbon sequestration measured at experimental site. • Modeling used to project future SOC levels, informing sustainable land use. • Zero tillage promote soil health and productivity in rainfed agriculture. [ABSTRACT FROM AUTHOR] more...
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- 2023
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10. Narrow‐wide‐row planting pattern increases the radiation use efficiency and seed yield of intercrop species in relay‐intercropping system.
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Raza, Muhammad Ali, Feng, Ling Yang, Werf, Wopke, Cai, Gao Ren, Khalid, Muhammad Hayder Bin, Iqbal, Nasir, Hassan, Muhammad Jawad, Meraj, Tehseen Ahmad, Naeem, Muhammd, Khan, Imran, Rehman, Sana ur, Ansar, Muhammad, Ahmed, Mukhtar, Yang, Feng, and Yang, Wenyu more...
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INTERCROPPING ,SEED yield ,CATCH crops ,SPECIES ,SOYBEAN ,RADIATION - Abstract
Planting arrangements affect radiation use efficiency (RUE) and competitiveness of intercrop species in intercropping systems. Here, we reveal that narrow‐wide‐row planting arrangement in maize‐soybean relay‐intercropping system increases the dry matter and competitiveness of soybean, increased the RUE of maize and soybean, and compensates the yield loss of maize by substantially increasing the yield of soybean. In this field study, maize was planted with soybean in different planting arrangements (P1, 20:180, P2, 40:160; P3, 60:140, and P4, 80:120) of relay intercropping, all the relay‐intercropping treatments were compared with sole crops of maize (SM) and soybean (SS). Results showed that P1 improved the total RUE 3.26 g/MJ (maize RUE + soybean RUE) of maize and soybean in relay‐intercropping system. Compared to P4, treatment P1 increased the soybean competition ratio (CR) values (by 55%) but reduced the maize CR values (by 29%), which in turn significantly improved the yield of soybean by maintaining the maize yield. Generally, in P1, soybean produced 82% of SS yield, and maize produced 88% of SM yield, and it achieved the land equivalent ratio of 1.7. These results suggest that by maintaining the appropriate planting distances between maize and soybean we can improve the competitiveness and yield of intercrop species in relay‐intercropping system. [ABSTRACT FROM AUTHOR] more...
- Published
- 2019
- Full Text
- View/download PDF
11. Straw management adopted by large farms sustains grain yield but mitigates greenhouse gas emissions.
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Li, Zhenzhen, Lin, Yong, Kan, Zheng-Rong, Rehman, Sana ur, Din, Atta Mohi Ud, Li, Feng-Min, Zhang, Shixiang, Wu, Ping, Ding, Yingfu, Xu, Chensheng, Rao, Congying, Dai, Huaxin, and Yang, Haishui
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GREENHOUSE gases , *GRAIN farming , *GRAIN yields , *STRAW , *NO-tillage , *PLOWING (Tillage) , *WHEAT straw - Abstract
Straw incorporation is a globally recommended strategy for enhancing soil fertility. The methods for straw incorporation adopted by large farms usually differ from those used by small households, primarily because of variations in cost affordability. However, the effects of straw management on rice yields and greenhouse gas (GHG) emissions have not been well explored at different farming scales. This study aims to compare the grain yield and greenhouse gas emissions under different straw management adopted by large farms than small households. A three-year field experiment using split-plot design, with straw management as the main plot and preceding tillage as the sub-plot, was conducted in a wheat-rice rotation system. Four treatments were given as rotary tillage with straw removal (RT-S), rotary tillage with straw incorporation (RT+S; small households), ploughing tillage with straw removal (PT-S), and ploughing tillage with straw incorporation (PT+S, large farms) in the preceding wheat season. Soil tillage in the rice season was the same, which was rotary tillage after irrigation. Straw incorporation significantly increased methane (CH 4) and nitrous oxide (N 2 O) emissions, and 60%-62% of CH 4 was emitted during the transplanting to jointing stages while 45–73% of N 2 O was emitted during the jointing to the booting stage. The stimulation of CH 4 and N 2 O emissions by straw incorporation was closely correlated to enhanced soil organic carbon (SOC) and denitrification enzyme activity, respectively. In the last year, PT+S significantly reduced the global warming potential (GWP) compared to RT+S in the whole rice season, which can be attributed to the dramatically decline of CH 4 emission, even though N 2 O emission was increased. Additionally, the decreased CH 4 emission was mainly due to lower methanogenic activity, and the increased N 2 O emission was mainly resulted from lower nosZ abundance under PT+S compared to RT+S. Straw incorporation increased rice yield by 15.73% on average in the last two years, and rice yield of PT+S in the last year was significantly enhanced by 27.50%, resulting in a lower greenhouse gas intensity (GHGI) by 25.54% compared to RT+S. Straw management practices adopted by large farms (PT+S) have the potential to synchronize high rice yields with lower GHG emissions compared to small households (RT+S). Our findings provide some evidence that large-scale agricultural organization may be helpful for sustainable rice production in China. • Straw incorporation increased CH 4 emission mainly from the transplanting to jointing stages. • N 2 O emission was increased mainly during the jointing to booting stages. • Straw management adopted by large farms decreased GHG emission but increased rice yields compared to small households. [ABSTRACT FROM AUTHOR] more...
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- 2024
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12. Effect of crop combination on yield performance, nutrient uptake, and land use advantage of cereal/legume intercropping systems.
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Raza, Muhammad Ali, Zhiqi, Wang, Yasin, Hassan Shehryar, Gul, Hina, Qin, Ruijun, Rehman, Sana Ur, Mahmood, Aqib, Iqbal, Zafar, Ahmed, Zaheer, Luo, Shuanglong, Juan, Chen, Liang, Xue, Gitari, Harun, Bin Khalid, Muhammad Hayder, Feng, Yang, and Zhongming, Ma more...
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INTERCROPPING , *CHICKPEA , *LEGUMES , *CATCH crops , *NUTRIENT uptake , *CROP yields , *LAND use , *CORPORATE profits - Abstract
Crop type and temporal synchronization are crucial for improving the productivity of intercropping systems, especially with reduced inputs (nitrogen, N, and phosphorus, P). However, the effects of crop type and temporal dynamics on nutrient uptake and yield advantage of cereal/legume intercropping systems are still unclear. The objective of this study was to assess the effects of different temporal dynamics of intercrops on growth, nutrient-use advantage, land productivity, and economic viability of cereal/legume intercropping systems under arid irrigated conditions. In this field study, we used the equal land proportion for all intercrops in both intercropping systems: wheat/chickpea intercropping (wheat/chickpea), where legume (chickpea) was the first-sown crop; and wheat/soybean intercropping (wheat/soybean), with cereal (wheat) being the first-planted crop), and all strip intercropping results were compared with their sole systems: sole chickpea (SCp), sole wheat (SW), and sole soybean (SS). Here, we revealed that the improved complementarity and facilitation interactions in wheat/chickpea linked with better phenological synchronization between wheat and chickpea, which resulted in higher relative grain yields, primarily gained from greater biomass accumulation and its translocation towards ears/pods, seeds, and seed weight, than the wheat and soybean in wheat/soybean. Similarly, the intercropped wheat accumulated a significantly higher N (15%) and P (14%) under wheat/chickpea than in wheat/soybean, whereas, in legumes, the N and P uptake of chickpea in wheat/chickpea was 19% and 13% higher than that of soybean in wheat/soybean, respectively. On average, in wheat/soybean, wheat and soybean achieved 62% of SW and 58% of SS yields, while in wheat/chickpea, wheat and chickpea produced 71% and 67% of SW and SCp yields, respectively, demonstrating the advantage of sowing legumes earlier than cereals in intercropping systems. Overall, in wheat/chickpea, the system-level nutrient- and land-use advantage, measured as the land, nitrogen, and phosphorus equivalent ratios, were 1.38, 1.59, and 1.62, respectively, which increased the net profit of wheat/chickpea by 55% compared to wheat/soybean, suggesting that intercropping systems require fewer anthropogenic inputs to produce higher crop yields than sole systems. Our results contribute to understanding the effects of crop type and temporal synchronization of intercrop species for maximizing the land productivity of cereal/legume intercropping systems in arid irrigated regions. • Legume-based wheat intercropping systems were tested in arid irrigated conditions. • Crop combination is important for higher yield in cereal/legume intercropping. • Cereal/legume intercropping accumulated more nutrients than sole crops. • Wheat/chickpea intercropping achieved higher LER than wheat/soybean intercropping. [ABSTRACT FROM AUTHOR] more...
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- 2023
- Full Text
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13. Struvite separation from wastewater and its use with sulfur-oxidizing bacteria improves phosphorus utilization in alkaline soil.
- Author
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Rehman SU, Ijaz SS, Raza MA, Fatima S, Javed N, Irfan M, Hussain S, Siddiqa A, Lateef M, Khan AUR, Khan RA, and Ahmad T
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- Struvite, Phosphates, Sulfur, Phosphorus, Bacteria, Soil, Oxidation-Reduction, Wastewater, Fertilizers
- Abstract
A major portion of phosphatic fertilizer comes from the limiting natural resource, rock phosphate, which demands a timely alternative. Struvite, a crystalline mineral of low solubility, is a worthwhile alternative. Evaluation of the local wastewater streams for their ability to precipitate struvite and its capability as phosphatic fertilizer under an alkaline soil environment was studied. Two stirring speeds, a pH range of 8.0-11.0, and a constant molar ratio were used to optimize local wastewater streams for struvite precipitation. Struvite was used in five different combinations to assess the release of phosphorus (P), including control (no P source), single superphosphate, struvite, struvite + sulfur, and rock phosphate with or without inoculation of sulfur-oxidizing bacteria (SOB). For struvite precipitation, low stirring speeds are ideal because the precipitates readily sink to the bottom once they form. Furthermore, the amalgamation of SOB with sulfur significantly improved P use efficiency under alkaline soils through increased phosphorus sources solubility and enabled optimum wheat production due to its low solubility in an alkaline soil condition. Due to its capacity to recycle phosphorus from wastewater, struvite is poised to emerge as a sustainable fertilizer and had an opportunity to capture a share of this expanding market. more...
- Published
- 2023
- Full Text
- View/download PDF
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