Effects of fertilization with ammonium sulphate and potassium sulphate on the development of Sphaeropsis sapinea in Corsican pine

1991 ◽  
Vol 97 (5) ◽  
pp. 265-274 ◽  
Author(s):  
M. Kam ◽  
C. M. Versteegen ◽  
J. Burg ◽  
D. C. Werf
Keyword(s):  
Ammonium Sulphate ◽  
Potassium Sulphate ◽  
Sphaeropsis Sapinea

The effects of nitrogen, phosphorus, potassium, and lime on the growth and canning yield of clingstone peaches

1968 ◽  
Vol 8 (35) ◽  
pp. 771 ◽  
Author(s):  
JC Keatley ◽  
GJ Kidman ◽  
A Malimonenko
Keyword(s):  
Experimental Design ◽  
Ammonium Sulphate ◽  
Tree Growth ◽  
Fruit Size ◽  
Manganese Toxicity ◽  
Potassium Sulphate ◽  
Main Effect ◽  
Main Effects ◽  
Fertilizer Combination ◽  
Nitrogen Phosphorus

The responses in canning yield and tree growth obtained from clingstone peaches (CV. Golden Queen) to fertilizers applied in factorial combinations were measured for 19 years at Tatura, Victoria. During the first eight years, the treatments involved ammonium sulphate, superphosphate, and potassium sulphate. Then a fourth factor, lime, was added, and included in the study for four years. For the final period of seven years, the experimental design was modified, in that all trees were limed, potassium sulphate was deleted, and applications of ammonium sulphate were re-arranged. The fertilizer combination that gave the greatest tree response was an application of 3 lb ammonium sulphate plus 4 lb superphosphate to each tree (at bud swell), and then in mid-summer an extra 3 lb ammonium sulphate. The main effects of nitrogen, phosphorus, and lime were to increase both yield and growth, while the main effect of potassium was to depress them (usually it was not large enough to be proved significant). The main effect of splitting the total application of ammonium sulphate was to increase yield through larger fruit size, but there was no effect on growth. The responses were independent and additive. Ammonium sulphate strongly acidified the soil, and this caused manganese toxicity, which was alleviated by liming.

Studies on soil reaction: IV. The soil reaction of continuously manured plots at Rothamsted and Woburn

1925 ◽  
Vol 15 (2) ◽  
pp. 222-231 ◽  
Author(s):  
Edward M. Crowther
Keyword(s):  
Ammonium Sulphate ◽  
Sodium Nitrate ◽  
Considerable Increase ◽  
Ph Value ◽  
Soil Reaction ◽  
Potassium Sulphate ◽  
Subsoil Acidity ◽  
Maximum Acidity ◽  
Almost All

The Rothamsted Park Grass and Woburn Barley soils are almost all acid. Ammonium sulphate has caused a considerable increase in acidity, and sodium nitrate a slight decrease. Mineral manures have but little effect, and potassium sulphate has slightly increased trie acidity of the subsoil below the more acid plots. There is some evidence that the pH value 3·8 represents a maximum acidity in the Rothamsted soil. The change in pH value as a result of liming is less than that shown in the laboratory, owing in part to the subsoil acidity.

scholarly journals The application of ammonium sulphate and amino acid on cotton: effects on can improve growth, yield, quality and nitrogen absorption

2022 ◽  
Vol 82 ◽  
Author(s):  
N. Hussain ◽  
A. Yasmeen ◽  
M. Bilal
Keyword(s):  
Amino Acid ◽  
Plant Growth ◽  
Ammonium Sulphate ◽  
Tap Water ◽  
Foliar Spray ◽  
Growth Yield ◽  
Growth Promoter ◽  
Potassium Sulphate ◽  
Plant Seed ◽  
Plant Growth Promoter

Abstract A field study was carried out to determine the influence of foliage applied plant growth promoter and retardant in improving soil applied sulphur fertilizer use efficiency in cotton during two consecutive summers 2014 and 2015. Experimental trial comprised of three different sources of sulphur (ammonium sulphate, potassium sulphate and elemental sulphur) and foliar spray of plant growth promoter and growth retardant including tap water was taken as control. Among treatments soil applied ammonium sulphate with foliage applied amino acid produced maximum plant height, sympodial branches, pods per plant, seed cotton yield, fiber yield, biological yield, protein contents, oil contents and leaf nitrogen uptake as compared to the other treatments. Whereas, soil applied potassium sulphate with foliar spray of mepiquat chloride on cotton significantly improved the boll weight and leaf potassium uptake. We conclude that soil applied ammonium sulphate and foliage spray of amino acid was more effective in improving the productivity and quality attributes of cotton.

scholarly journals Evaluating the Fertilising Potential of Blended Recovered Nutrients in Horticultural Growing Medium on Viola x wittrockiana L.

Agronomy ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 182
Author(s):  
Ana A. Robles-Aguilar ◽  
Oliver Grunert ◽  
Erik Meers ◽  
Nicolai D. Jablonowski
Keyword(s):  
Ammonium Nitrate ◽  
Ammonium Sulphate ◽  
Slow Release ◽  
Ornamental Plant ◽  
Potassium Sulphate ◽  
Growing Medium ◽  
Viola X Wittrockiana ◽  
Greenhouse Growers ◽  
Healthy Growth ◽  
Positive Controls

Viola x wittrockiana L. is an ornamental plant in high demand in horticulture. It is becoming more critical for greenhouse growers to focus on sustainable production to enhance plant quality while reducing negative environmental impacts. Therefore, assessing the effect of recycled phosphorous (P) and nitrogen (N) sources on the growth of viola could become very useful for producers in terms of sustainability. This experiment analysed the optimal fertiliser composition to grow viola using recovered fertilisers in a greenhouse trial under controlled conditions. Well-rooted viola plugs were grown in a standard peat-based growing medium. Using recycled sources of P and N as struvite and potassium struvite, ammonium sulphate, and ammonium nitrate, 14 fertiliser blends were prepared, tested, and compared with the slow-release commercial fertiliser Osmocote. Plants treated with ammonium nitrate showed healthy growth and optimal plant N concentrations. In contrast, most blends using the recovered ammonium sulphate resulted in an unacceptable increase of ammonium concentrations in the growing medium. The combination of ammonium sulphate and potassium sulphate caused an increase in the electrical conductivity in the growing medium, negatively affecting plant growth. However, blend 13 containing struvite, ammonium sulphate and potassium struvite expressed the best chemical composition with non-significant differences in the biomass from the positive controls, as it reduced the amount of potassium sulphate needed. Our results indicate that fertiliser blends containing P as struvite, N as ammonium nitrate or reduced amount of ammonium sulphate, and K as potassium struvite can substitute the use of mineral fertiliser blends to grow ornamental plant species as viola.

Partial Characterization of a Fibrinolytic Inhibitor Produced by Cultured Endothelial Cells Derived from Human Umbilical Vein

1982 ◽  
Vol 47 (02) ◽  
pp. 128-131 ◽  
Author(s):  
F Esnard ◽  
E Dupuy ◽  
A M Dosne ◽  
E Bodevin
Keyword(s):  
Endothelial Cells ◽  
Primary Culture ◽  
Ammonium Sulphate ◽  
Concanavalin A ◽  
Umbilical Vein ◽  
Human Umbilical Vein ◽  
Preliminary Characterization ◽  
Umbilical Vein Endothelial Cells ◽  
Ammonium Sulphate Saturation

SummaryA preliminary characterization of a fibrinolytic inhibitor released by human umbilical vein endothelial cells in primary culture is reported. This molecule of Mr comprised between 2 × 105 and 106 and of μ2 mobility precipitates at 43% ammonium sulphate saturation and is totally adsorbed on Concanavalin A Sepharose 4 B. A possible relationship with a macroglobulins is discussed.

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