Development and Testing of Improved Efficiency Boron-Enriched Diammonium Phosphate Fertilizers

Author(s):  
Tayyaba Samreen ◽  
Fien Degryse ◽  
Roslyn Baird ◽  
Rodrigo Coqui da Silva ◽  
Zahir Ahmad Zahir ◽  
...  
2020 ◽  
Vol 97 (7) ◽  
pp. 751-763 ◽  
Author(s):  
Asma Sofyane ◽  
Mohammed Lahcini ◽  
Abdellatif El Meziane ◽  
Mehdi Khouloud ◽  
Abdelmalek Dahchour ◽  
...  

1980 ◽  
Vol 20 (105) ◽  
pp. 486 ◽  
Author(s):  
RL Aitken ◽  
JD Hughes

Fixation of phosphate from monocalcium, monoammonium and diammonium phosphate in a krasnozem soil was investigated in two glasshouse trials. The extent of fixation was assessed from the dry matter yield and phosphorus uptake of tomato plants. Less phosphate was fixed from monocalcium phosphate than from the ammonium phosphates, which was attributed to the higher diffusion rates of the latter and to the precipitation of dicalcium phosphate at the site of monocalcium phosphate placement. Banding of sub-optimal quantities of phosphorus increased yields, although the results suggest that banding only temporarily reduces fixation of the ammonium phosphates. Sulphate significantly increased the uptake of phosphorus when added with each of the three P fertilizers. The effect was greater when the fertilizer was banded than when mixed with the soil.


Author(s):  
Omar Zimou ◽  
Badr Malek ◽  
Achraf Elhallaoui ◽  
Tourya Ghailane ◽  
Rachida Ghailane ◽  
...  

The present work focused on developing a new protocol of the 1-(benzothiazolylamino) methyl-2-naphthol derivatives synthesis by condensation of three compounds, i.e. aromatic 2-naphthol, 2-aminobenzothiazole and aldehyde. Furthermore, this reaction was carried out in the presence of three heterogeneous phosphate catalysts: monoammonium phosphates (MAP), diammonium phosphate (DAP), and trisuperphosphate (TSP). Moreover, this method offered many advantages, such as: very high yields, shorter reaction times, and the catalysts, can be easily recovered and reused without any loss of their catalytic activities.  Copyright ©2019 BCREC Group. All rights reserved 


1969 ◽  
Vol 47 (4) ◽  
pp. 242-245
Author(s):  
George Samuels ◽  
Héctor Gandía-Díaz

A Bayamón sandy clay was used to evaluate various phosphate sources for fertilizing Red Spanish pineapples. The phosphate sources utilized were simple superphosphate, triple superphosphate, raw-rock phosphate, ammonium metaphosphate, diammonium phosphate, calcium metaphosphate, dicalcium metaphosphate, potassium calcium pyrophosphate, and potassium metaphosphate. The results on a plant and a ratoon crop indicated that: 1. There were no significant increases in yield of Red Spanish pineapple for any of the phosphate sources used as compared to the no-phosphate treatment. 2. Yields were significantly lowered over the no-phosphate treatment when diammonium phosphate (20-52-0) was used as a source of phosphate. 3. Mean weight, but not total weight of fruit per acre, was significantly reduced over the no-phosphate treatment when potassium metaphosphate (0-47-28) was used as a source of phosphate.


1934 ◽  
Vol 26 (7) ◽  
pp. 591-599
Author(s):  
F. B. Smith ◽  
P. E. Brown ◽  
H. T. Miller ◽  
C. C. Mensing

Heliyon ◽  
2020 ◽  
Vol 6 (12) ◽  
pp. e05718
Author(s):  
Md. Akhter Hossain Chowdhury ◽  
Taslima Sultana ◽  
Md. Arifur Rahman ◽  
Tanzin Chowdhury ◽  
Christian Ebere Enyoh ◽  
...  

Soil Science ◽  
1954 ◽  
Vol 78 (1) ◽  
pp. 1-8 ◽  
Author(s):  
LOUIS C. BOAWN ◽  
FRANK G. VIETS ◽  
CARL L. CRAWFORD

1949 ◽  
Vol 41 (7) ◽  
pp. 1328-1334 ◽  
Author(s):  
W. L. Hill ◽  
E. J. Fox ◽  
J. F. Mullins

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