RENDEMENT ET QUALITÉ DU TABAC À CIGARETTE FERTILISÉ AVEC DIFFÉRENTES FORMES D'AZOTE

1989 ◽  
Vol 69 (4) ◽  
pp. 779-784
Author(s):  
MICHEL LAMARRE ◽  
SUZANNE PAYETTE
Keyword(s):  
Key Words ◽  
Total Nitrogen ◽  
Reducing Sugars ◽  
Nitrogen Sources ◽  
Chemical Characteristics ◽  
Nitrogen Forms ◽  
Total Alkaloids ◽  
Tobacco Production ◽  
Yield Quality

The effects of three forms of nitrogen on flue-cured tobacco production were observed for 5 yr. Significant effects were obtained for yield, quality, gross return and total nitrogen. No significant differences were found for maturity, total alkaloids or reducing sugars. The data showed that the use of a fertilizer containing 75% nitrogen in the form of [Formula: see text] or urea and 25% as [Formula: see text] produces a tobacco with acceptable agronomic and chemical characteristics. Key words: Flue-cured tobacco, nitrogen forms, nitrogen sources, nitrate [Formula: see text], ammonium [Formula: see text], urea

Influence de la fertilisation azotée sur la production du tabac à cigarette au Québec

1992 ◽  
Vol 72 (2) ◽  
pp. 411-419
Author(s):  
Michel Lamarre ◽  
Suzanne Payette
Keyword(s):  
Chemical Composition ◽  
Total Nitrogen ◽  
Soil Type ◽  
Quality Index ◽  
Reducing Sugars ◽  
Total N ◽  
Total Alkaloids ◽  
Tobacco Production ◽  
Yield Quality ◽  
Fertilisation Azotée

The effect of nitrogen applications on flue-cured tobacco production and chemical composition have been observed for 5 yr. The nitrogen applications resulted in an increase of yield, gross return, total alkaloids and total nitrogen and a decrease of quality index, maturity index, reducing sugars and ratio of reducing sugars:total alkaloids. The use of 30–45 kg ha−1 of nitrogen, depending on soil type and the cultivar, produces a tobacco with acceptable agronomic and chemical characteristics.Key words: Flue-cured tobacco, nitrogen, yield, quality, gross return, total alkaloids, total N, reducing sugars

L’INFLUENCE DU STADE D’ECIMAGE ET DE LA DISTANCE DE PLANTATION SUR LES CARACTERISTIQUES AGRONOMIQUES ET CHIMIQUES DU TABAC A CIGARETTE

1979 ◽  
Vol 59 (4) ◽  
pp. 1109-1112
Author(s):  
MICHEL LAMARRE
Keyword(s):  
Total Nitrogen ◽  
Reducing Sugars ◽  
The Other ◽  
Cigarette Tobacco ◽  
Total Alkaloids ◽  
Chemical Factors ◽  
Effect On Yield ◽  
Chemical Characters ◽  
Planting Distance ◽  
Grade Index

The influence of the stage of topping and the planting distance as they influenced agronomic and chemical characters during the years 1974–1976 was studied on cigarette tobacco. The plants were spaced 41, 51 and 61 cm in the row, 122 cm between rows. The tobacco was topped at the early button stage, the button stage and at 25% flowering. A planting distance of 41 cm with early topping produced the best results, taking into consideration both agronomic and chemical factors. Early topping had no significant effect on yield, grade index, maturity index and percentage of reducing sugars. Late topping reduced revenue, percentage of nicotine, total alkaloids and total nitrogen. Close planting in the row increased yield and revenue while it decreased the level of total alkaloids and total nitrogen and had no significant effect on the other parameters studied.

La fertilisation magnésienne du tabac à cigarette

1991 ◽  
Vol 71 (3) ◽  
pp. 355-362
Author(s):  
Michel Lamarre ◽  
Suzanne Payette
Keyword(s):  
Chemical Composition ◽  
Key Words ◽  
Reducing Sugars ◽  
Magnesium Content ◽  
Total Alkaloids ◽  
Good Production ◽  
Double Sulfate ◽  
Rate Form ◽  
Mg Content ◽  
Effective Source

The effect of magnesium application on the production and chemical composition of flue-cured tobacco was observed over a period of 3 yr to determine the most effective source and the best rate of Mg application. Magnesium increased gross return and magnesium content of the plant while decreasing potassium and zinc contents. Only the Mg applied as double sulfate of potassium and magnesium (Sulpomag) increased yield, gross return and Mg content of the plant. An application of 10 kg ha−1 of Sulpomag is satisfactory to reach a good production on soils low in Mg. Key words: Flue-cured tobacco, magnesium, rate, form, total alkaloids, total nitrogen, reducing sugars

ÉTUDES DES SOURCES D'AZOTE ET DE PHOSPHORE ET DU TAUX DE FERTILISATION SUR LA PRODUCTION DU TABAC À CIGARE

1987 ◽  
Vol 67 (1) ◽  
pp. 215-219
Author(s):  
MICHEL LAMARRE
Keyword(s):  
Ammonium Nitrate ◽  
Key Words ◽  
Ammonium Sulphate ◽  
Quality Index ◽  
Chemical Characteristics ◽  
Coated Urea ◽  
Yield Quality ◽  
Nitrogen Phosphorus

A study was carried out over a 5-yr period on the influence of different forms of N and P on agronomic and chemical characteristics of cigar tobacco. Results showed that sulphur-coated urea significantly increased yield and gross return when compared with urea alone, but not when compared with ammonium nitrate or ammonium sulphate. Regular superphosphate (0–20–0) was shown to be superior to concentrated superphosphate (0–46–0) for yield, quality index and gross return. Key words: cigar tobacco, nitrogen, phosphorus

INFLUENCE OF TRANSPLANTING DATE ON THE AGRONOMIC, CHEMICAL AND PHYSICAL CHARACTERISTICS OF FLUE-CURED TOBACCO

1989 ◽  
Vol 69 (3) ◽  
pp. 1063-1069 ◽  
Author(s):  
WILLIAM A. COURT ◽  
JOHN G. HENDEL ◽  
MICHAEL R. BINNS
Keyword(s):  
Reducing Sugars ◽  
Sand Soil ◽  
Planting Dates ◽  
Total Alkaloids ◽  
Loamy Sand Soil ◽  
Nicotiana Tabacum L ◽  
Hexane Extracts ◽  
Yield Quality ◽  
Grade Index ◽  
Physical And Chemical

A field experiment was conducted from 1983 to 1987 on a Fox loamy sand soil to study the effects of transplanting date on selected agronomic, physical, and chemical characteristics of flue-cured tobacco (Nicotiana tabacum L.) grown in Ontario. Tobacco plants (cv. Delgold) were transplanted at 3- to 5-d intervals commencing at approximately the middle of May and continuing for seven to nine planting dates into June. Delaying transplanting decreased yield, returns, total alkaloids, hexane extracts, lamina weight and percent lamina. Delaying transplanting also increased the chlorophyll content of the leaf but had no effect on reducing sugars, and only reduced grade index late in the planting season.Key words: Tobacco (flue-cured), transplanting date, yield, quality, tobacco chemistry

scholarly journals ''Ripening'' Tobacco with the Ethylene-Releasing Agent 2-Chloroethylphosphonic Acid

1970 ◽  
Vol 5 (6) ◽  
Author(s):  
G.L. Steffens ◽  
J.G. Alphin ◽  
Z.T. Ford
Keyword(s):  
Total Nitrogen ◽  
Crop Production ◽  
Reducing Sugars ◽  
Average Weight ◽  
Curing Process ◽  
Green Colour ◽  
Mature Leaves ◽  
Total Alkaloids ◽  
Time Required ◽  
Untreated Leaf

AbstractTreatment of flue-cured tobacco with the ethylene releasing agent 2-chloroethylphosphonic acid (CEPA) caused mature leaves to lose their green colour and turn yellow. The treated leaves appeared to go through a partial "yellowing'' or "colouring" phase prior to harvest. Treated leaves at harvest contained greater amounts of reducing sugars and lower levels of starch, relative to comparable untreated leaves. At the end of the curing process, comparisons between treated and untreated leaf showed that only small differences existed in total nitrogen, total alkaloids, starch, and reducing sugars. Statistically, protein of leaf treated with CEPA was significantly lower as compared to untreated leaf. For all yellowing times, dollar values per hundred weight of cured leaf from treated plants were higher than from untreated plants, but the average weight per leaf from treated plants was lower. During the curing process, leaf treated with CEPA can probably be subjected to shorter periods of yellowing or colouring than untreated leaf. If further work with "ripening'' chemicals such as CEPA show that they can be used to hasten yellowing or ripen tobacco successfully, as well as to reduce the time required for curing the crop, economic advantages are likely to accrue. It is to be hoped that such chemicals may help reduce the labour and investment required for crop production, and at the same time improve crop quality

Effects Attributed to Maleic Hydrazide when used for Chemical Sucker Control on Bright Tobacco

1980 ◽  
Vol 10 (2) ◽  
Author(s):  
Heinz Seltmann
Keyword(s):  
Statistical Difference ◽  
Reducing Sugars ◽  
Maleic Hydrazide ◽  
Water Soluble ◽  
Total Volatile ◽  
Total Alkaloids ◽  
Group I ◽  
Excellent Control ◽  
Per Se ◽  
Group Ii

AbstractThe effect of maleic hydrazide (MH) per se on bright tobacco was determined by comparing plants treated with MH to those without MH under conditions of good chemical sucker control. Sequential applications of each of five contact-type agents with MH one week later (Group I) were compared to dual applications of each of the same contact agents (Group II). In Group II suckers missed during applications were individually wetted to ensure excellent control. Sucker control was measured as 95 % for Group I and assumed to be 99 % for Group II. There were no agronomic differences between Groups I and II. In the visual warehouse appraisal, there was only a statistical difference for thin-bodied tobaccos between the two groups and a trend for slightly more heavy-bodied tobaccos in Group I. The chemical and physical analyses showed that filling value at 13 % moisture and equilibrium moisture content (EMC) measured at 60 % relative humidity were significantly lower in Group I than Group II. The result for EMC was questioned. Actual values for total alkaloids, total volatile bases minus nicotine, total ash, and alkalinity number of water-soluble ash were lower and reducing sugars were higher where MH was used. Except for EMC, the findings in this study reflected those established in studies where MH-treated and normally hand-suckered tobaccos were compared, but the differences here were generally not as great.

scholarly journals Effect of Sewage Sludge Compost Usage on Corn and Faba Bean Growth, Carbon and Nitrogen Forms in Plants and Soil

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 628
Author(s):  
Hassan E. Abd Elsalam ◽  
Mohamed E. El- Sharnouby ◽  
Abdallah E. Mohamed ◽  
Bassem M. Raafat ◽  
Eman H. El-Gamal
Keyword(s):  
Organic Matter ◽  
Sewage Sludge ◽  
Plant Growth ◽  
Total Nitrogen ◽  
Faba Bean ◽  
Residual Effect ◽  
Growth Period ◽  
Nitrogen Forms ◽  
Amended Soils ◽  
Nitrogen Levels

Sewage sludge is an effective fertilizer in many soil types. When applied as an amendment, sludge introduces, in addition to organic matter, plant nutrients into the soil. When applied for cropland as a fertilizer, the mass loading of sewage sludge is customarily determined by inputs of N and/or P required to support optimal plant growth and a successful harvest. This study aims to examine the changes in organic matter contents and nitrogen forms in sludge-amended soils, as well as the growth of corn and faba bean plants. The main results indicated that there were higher responses to the corn and faba bean yields when sludge was added. Levels of organic carbon in soil were higher after maize harvest and decreased significantly after harvesting of beans, and were higher in sludge amended soils than unmodified soils, indicating the residual effect of sludge in soil. NO3−-N concentrations were generally higher in the soil after maize harvest than during the plant growth period, but this trend was not apparent in bean soil. The amounts of NH4+-N were close in the soil during the growth period or after the maize harvest, while they were higher in the soil after the bean harvest than they were during the growth period. Total nitrogen amounts were statistically higher in the soil during the growth period than those collected after the corn harvest, while they were approximately close in the bean soil. The total nitrogen amount in corn and bean leaves increased significantly in plants grown on modified sludge soil. There were no significant differences in the total nitrogen levels of the maize and beans planted on the treated soil.

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