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Response of cigar filler tobacco varieties (Nicotiana tabacum L.) grown in Alluvial soils to NPK fertilization / by Filemon T. Agbisit

By:

Agbisit, Filemon T [author]

Contributor(s):

Rosario, Elpidio L [adviser]

Material type: Text

TextLanguage: English Publication details: Los Baños, Laguna : 1982. Cavite State University- Main Campus,Description: 115 pages : illustrations ; 28 cmContent type:

text

Media type:

unmediated

Carrier type:

volume

Subject(s):

DDC classification:

633.71 Ag1 1982

Online resources:

Click here to view thesis abstract and table of contents

Abstract: AGBISIT, FILEMON T., University of the Philippines at Los Bajos, April 1982. Response of Cigar Filler Tobacco Varieties (Ntcottana tabacum L.) Grown On Alluvial Soils To NPK Fertilization. Major Professor: Dr. Basilio B. Mabbayad. Field experiments were conducted in Isabela, Cagayan Valley to determine the response of cigar filler tobacco to NPK fertilization. Two soil types of the alluvial loam family were used as experimental sites and two varieties served as test plants. Aside from differences in soil type, the experimental sites also had a difference of four (4) to five (5) meters in elevation. Five rates of N and three rates each of P50, and K,0 were used, starting from zero kg/ha and rate increase of 36 kg/ha in a non factorial combination of ten different NPK ratio. Results showed no definite pattern in agronomic responses of the plant to fertilizer application. There were no significant differences in yield among treatments, in the percentage distribution ¢ the higher leaf grades, single leaf weight and leaf area. The chemical composition of the leaf were compared with flue cured and other experiment data on cigar filler tobacco. The present study was high in nicotine and nitrogen content, medium to low in reducing sugars, high to medium in nitrogen to nicotine ratio, and low in reducing sugars to nicotine ratio. The relationship between and among the parameters were investigated. There was high positive correlation between yield and the following parameters: leaf area, plant height, length of internodes and the number of leaves per plant. There was significant positive correlation between nicotine and lamina. Chlorine was also significantly correlated with phosphorus and potassium. Nicotine was positively correlated with leaf lamina, and negatively correlated with midrib and specific leaf weight. Silt loam soil was found to be better suited for growing tobacco than silty clay loam (lower alluvial versus upper alluvial soil. There were no significant differences between varieties in their response to fertilizer treatment .

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Holdings ( 1 )
Title notes ( 4 )

Holdings
Item type	Current library	Call number	Materials specified	URL	Status	Notes	Date due	Barcode
Theses / Manuscripts	Ladislao N. Diwa Memorial Library Theses Section	633.71 Ag1 1982 (Browse shelf(Opens below))		Link to resource	Room use only	T-1537		00002375

Thesis (Ph.D. - - Agronomy) University of the Philippines, College, Laguna.

Includes bibliographical references.

AGBISIT, FILEMON T., University of the Philippines at Los Bajos, April 1982. Response of Cigar Filler Tobacco Varieties (Ntcottana tabacum L.) Grown On Alluvial Soils To NPK Fertilization. Major Professor: Dr. Basilio B. Mabbayad.

Field experiments were conducted in Isabela, Cagayan Valley to determine the response of cigar filler tobacco to NPK fertilization. Two soil types of the alluvial loam family were used as experimental sites and two varieties served as test plants. Aside from differences in soil type, the experimental sites also had a difference of four (4) to five (5) meters in elevation.

Five rates of N and three rates each of P50, and K,0 were used, starting from zero kg/ha and rate increase of 36 kg/ha in a non factorial combination of ten different NPK ratio.

Results showed no definite pattern in agronomic responses of the plant to fertilizer application. There were no significant differences in yield among treatments, in the percentage distribution ¢ the higher leaf grades, single leaf weight and leaf area.

The chemical composition of the leaf were compared with flue cured and other experiment data on cigar filler tobacco. The present study was high in nicotine and nitrogen content, medium to low in reducing sugars, high to medium in nitrogen to nicotine ratio, and low in reducing sugars to nicotine ratio. The relationship between and among the parameters were investigated. There was high positive correlation between yield and the following parameters: leaf area, plant height, length of internodes and the number of leaves per plant. There was significant positive correlation between nicotine and lamina. Chlorine was also significantly correlated with phosphorus and potassium.

Nicotine was positively correlated with leaf lamina, and negatively correlated with midrib and specific leaf weight. Silt loam soil was found to be better suited for growing tobacco than silty clay loam (lower alluvial versus upper alluvial
soil.

There were no significant differences between varieties in their response to fertilizer treatment .

Submitted to the University Library 01/07/1994 T-1537