CALCIUM NITRATE COMPARED WITH AMMONIUM NITRATE AS A FERTILIZER AND AMENDMENT FOR SOLONETZIC SOILS

1980 ◽  
Vol 60 (3) ◽  
pp. 587-589 ◽  
Author(s):  
R. R. CAIRNS ◽  
R. S. LAVADO ◽  
G. R. WEBSTER
Keyword(s):  
Physical Properties ◽  
Ammonium Nitrate ◽  
Soil Acidity ◽  
Calcium Nitrate ◽  
Beneficial Effects ◽  
Solonetz Soil

Application of Ca(NO3)2 to a Black Solonetz soil at Vegreville, Alberta provided the known beneficial effects of NH4NO3 in increasing yields and improving the chemical and physical properties of the Ap and Bnt horizons without the harmful increase in soil acidity associated with the use of NH4NO3.

scholarly journals Nitrate, ammonium and urea nitrogen as fertilizers for wheat and rye in a field experiment

1978 ◽  
Vol 50 (4) ◽  
pp. 346-360
Author(s):  
Antti Jaakkola
Keyword(s):  
Field Experiment ◽  
Ammonium Nitrate ◽  
Ammonium Sulphate ◽  
Spring Wheat ◽  
Soil Acidity ◽  
Calcium Nitrate ◽  
Nitrogen Fertilizers ◽  
Winter Rye ◽  
Calcium Ammonium Nitrate ◽  
Yield Level

In a five-year field experiment on a well-limed sandy soil five nitrogen fertilizers were compared. They were urea, ammonium sulphate, calcium nitrate, calcium ammonium nitrate and a mixture of ammonium sulphate and calcium nitrate. The crops in successive years were spring wheat, winter rye, winter wheat, spring wheat and winter rye. The average yield level was not different because of different fertilizers, but in individual years some differences were found. Average contents of nitrogen and calcium in grain and straw, however, showed a slight superiority of calcium nitrate to ammonium sulphate. Other fertilizers did not deviate significantly from either of these. Placement vs. broadcasting, application time and rate of fertilizer nitrogen were also investigated. These factors did not affect the differences between fertilizers. The soil-acidifying effect of the fertilizers decreased in the order: ammonium sulphate, urea, mixture of AS and CN, calcium ammonium nitrate. Calcium nitrate had no effect on soil acidity.

Viscosity, electrical conductivity and density of the system ammonium nitrate-dimethyl sulphoxide

1984 ◽  
Vol 49 (5) ◽  
pp. 1109-1115
Author(s):  
Jindřich Novák ◽  
Zdeněk Kodejš ◽  
Ivo Sláma
Keyword(s):  
Electrical Conductivity ◽  
Aqueous Solutions ◽  
Ammonium Nitrate ◽  
Transport Properties ◽  
Calcium Nitrate ◽  
Dimethyl Sulphoxide ◽  
Present System ◽  
Empirical Equations ◽  
Concentrated Solutions ◽  
Nitrate Solutions

The density, viscosity, and electrical conductivity of highly concentrated solutions of ammonium nitrate in dimethyl sulphoxide have been determined over the temperature range 10-60 °C and the concentration range 7-50 mol% of the salt. The variations in the quantities as a function of temperature and concentration have been correlated by empirical equations. A comparison is made between the transport properties for the present system, aqueous solutions of ammonium nitrate, and calcium nitrate solutions in dimethyl sulphoxide.

scholarly journals Nutrient nitrogen management for disease control in strawberry

2008 ◽  
Vol 61 ◽  
pp. 70-79 ◽  
Author(s):  
M. Walter ◽  
B. Braithwaite ◽  
B.J. Smith ◽  
G.I. Langford
Keyword(s):  
Ammonium Nitrate ◽  
Ammonium Sulphate ◽  
Disease Susceptibility ◽  
Disease Risk ◽  
Calcium Nitrate ◽  
Colletotrichum Acutatum ◽  
N Application ◽  
Flower Production ◽  
Berry Size ◽  
Important Disease

Botrytis cinerea and Colletotrichum acutatum are important strawberry pathogens Nitrogen (N) application can increase yield but also susceptibility to pathogens Strawberry plants (Camarosa and Ventana) were grown in sand fertilised with base nutrients plus ammonium nitrate ammonium sulphate or calcium nitrate at low (40 ppm N) and high (140 ppm N) concentration Controls consisted of base nutrients only and water only Flower production fruit yield and berry size all increased with increasing Nconcentration but Nsource itself was not important Disease susceptibility was affected by both Nconcentration and Nsource At high Nconcentration C acutatum fruit lesions were largest in ammonium sulphate treatments > ammonium nitrate > calcium nitrate; Botryits cinerea lesions were largest in ammonium nitrate > ammonium sulphate > calcium nitrate Similar trends were observed for leaf susceptibility to the two pathogens These data suggest that calcium nitrate may be a suitable source of nitrogen helping growers to reduce disease risk

scholarly journals Calcium nitrate and ammonium nitrate limestone as sources of nitrogen for oats and barley

1961 ◽  
Vol 33 (1) ◽  
pp. 159-168
Author(s):  
Pentti Hänninen ◽  
Armi Kaila
Keyword(s):  
Ammonium Nitrate ◽  
Nitrogen Content ◽  
Calcium Nitrate ◽  
Field Trials ◽  
The Other ◽  
Nitrogen Fertilizers ◽  
Malting Barley ◽  
Growing Period ◽  
Significant Difference ◽  
Cent Level

Calcium nitrate and ammonium nitrate limestone (»Oulunsalpietari») were compared as the nitrogen fertilizer for oats in 15 field trials and for barley in one trial. The trials were carried out in summers 1959 and 1960 in various places in Finland. The split plot technique was employed in order to reduce the variation as much as possible. In 1959 the amounts of nitrogen applied as these two fertilizers to the corresponding halves of the plots were 25 and 50 kg/ha. In 1960 also higher applications were used: 75 and 100 kg/ha of N. In three trials these fertilizers were compared both as a surface dressing and worked in. Visual observations suggested about 5—6 weeks after sowing a darker green colour in the stands treated with calcium nitrate as compared with the other half treated with ammonium nitrate limestone. These differences later disappeared. In some trials a higher nitrogen content of the plants from the calcium nitrate stands could be demonstrated during this period. The uptake of nitrogen by plants was regularly followed throughout the growing period. Owing to the large variation, usually, no statistically significant difference between the effect of the fertilizers could be detected. In a few cases the superiority of calcium nitrate could be demonstrated. No differences in the ripening could be found. In most trials there was a fairly regular tendency to higher yields and higher nitrogen content in the grain and straw produced by calcium nitrate. Yet, only in a few cases were the differences statistically significant at the five per cent level. Thus, it was concluded that on the basis of the results of these trials ammonium nitrate limestone and calcium nitrate may be considered practically equal as nitrogen fertilizers for oats. There was no difference in the yields of barley produced by these two fertilizers, but the nitrogen content of grains was significantly lower with ammonium nitrate limestone than with calcium nitrate. This may be worth further study in connection with the production of malting barley.

Fertilisation azotée en forêt de pin gris (Pinusbanksiana). I. Cheminement des engrais dans le sol

1981 ◽  
Vol 11 (2) ◽  
pp. 414-422
Author(s):  
C. Camiré ◽  
B. Bernier
Keyword(s):  
Ammonium Nitrate ◽  
Ammonium Sulfate ◽  
Nitrogen Availability ◽  
Urea Formaldehyde ◽  
Calcium Nitrate ◽  
Nitrogen Retention ◽  
Jack Pine ◽  
Nitrogen Fertilizers ◽  
Original Form ◽  
Coated Urea

Six nitrogen fertilizers (urea, sulfur-coated urea, urea-formaldehyde, ammonium nitrate, ammonium sulfate, and ammonium nitrate) were individually applied, either in fall or in spring, at a rate of 224 kg N/ha and compared for nitrogen retention in the different horizons of a podzol under jack pine. Despite its susceptibility to nitrogen losses through ammonia volatilization, urea was by far, among readily available nitrogen fertilizers, the one whose nitrogen is best retained in soil surface horizons. Retention varied with weather conditions that prevailed immediately after fertilizer application. With the other fertilizers used, nitrogen retention followed this order: ammonium sulfate > ammonium nitrate > calcium nitrate. After four seasons, about 50% of the nitrogen applied as sulfur-coated urea and urea-formaldehyde was still found in its original form. Ammonium sulfate is next to urea among the recommended nitrogen sources for similar jack pine sites, considering that fertilizers with nitrate are prone to leaching and the sulfur-coated urea and urea-formaldehyde used presented problems of nitrogen availability.

Ten-year growth results of nitrogen source and interprovincial experiments on jack pine

1984 ◽  
Vol 14 (3) ◽  
pp. 424-430 ◽  
Author(s):  
G. F. Weetman ◽  
R. M. Fournier
Keyword(s):  
Ammonium Nitrate ◽  
Calcium Nitrate ◽  
Jack Pine ◽  
Fertilizer Efficiency ◽  
Fertilizer Use ◽  
Stand Growth ◽  
Volume Response ◽  
Urea Ammonium Nitrate ◽  
Repeated Applications ◽  
N Fertilizer Efficiency

Sample plots in a 45-year-old jack pine (Pinusbanksiana Lamb.) stand in Quebec were fertilized with urea, ammonium nitrate, and calcium nitrate in single applications of 112 or 448 kg N/ha. There were no significant differences in periodic volume response owing to the form of N added; applications of 112 kg N/ha gave temporary increases in stand growth which lasted 4–5 years, while applications of 448 kg N/ha produced responses lasting 7–8 years. In an experiment of the standardized interprovincial series no significant differences in periodic volume response were found although there was an indication of increased response to the addition of P with N. Fertilizer efficiency was examined for single and repeated applications on the site. The most efficient fertilizer use was with repeated light applications of 56 kg N/ha, requiring 8 kg N for every cubic metre per hectare produced.

Ameliorating soil acidity and physical properties of two contrasting texture Ultisols with wastewater sludge biochar

2017 ◽  
Vol 25 (26) ◽  
pp. 25726-25733 ◽  
Author(s):  
Yutong Zong ◽  
Yefeng Wang ◽  
Ye Sheng ◽  
Chengfeng Wu ◽  
Shenggao Lu
Keyword(s):  
Physical Properties ◽  
Soil Acidity ◽  
Wastewater Sludge

Effects of Different Foliar-applied Nitrogen Fertilizers on Balsam Woolly Aphid

1973 ◽  
Vol 3 (1) ◽  
pp. 122-139 ◽  
Author(s):  
J. Roderick Carrow ◽  
Robert E. Betts
Keyword(s):  
Ammonium Nitrate ◽  
Survival Rates ◽  
Calcium Nitrate ◽  
Fold Increase ◽  
Nitrogen Fertilizers ◽  
Controlled Environment ◽  
Acid Diet ◽  
Woolly Aphid ◽  
Urea Ammonium Nitrate ◽  
Induced Changes

Balsam woolly aphids were reared on young grand fir trees maintained in controlled environment or outdoors. Solutions of various nitrogen fertilizers were applied repeatedly to the trees and the effects on aphids and bark amino acids were studied. On trees fertilized with ammonium nitrate or a sequence of compounds, aphid population growth was less than on trees fertilized with urea or potassium ammonium nitrate. On urea-fertilized trees, populations multiplied 16.5 times in five generations, compared with a 5.7-fold increase on unfertilized trees and a 1.4-fold increase on ammonium nitrate-fertilized trees. These differences resulted from effects of these nutrients on aphid life history. Urea promoted aphid establishment and reproduction, whereas ammonium nitrate affected these processes, as well as survival, adversely. The highest establishment and survival rates resulted from potassium ammonium nitrate.These differences may be related to fertilizer-induced changes in the amino acid diet of the aphid. Thin layer electrophoresis and chromatography revealed that urea, ammonium nitrate, and calcium nitrate each increased arginine concentrations in the bark, the highest levels resulting from ammonium nitrate. Traces of phenylalanine and asparagine, found in other treatments, were absent from trees fertilized with ammonium nitrate during June.

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