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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Nutrient cycling in agroecosystems 28 (1991), S. 213-216 
    ISSN: 1573-0867
    Keywords: NPK grade for tobacco crop ; climatic conditions ; physical properties ; quality control measures
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract It has been shown by agronomists that N.P.K. 10:20:20 is the most suitable fertilizer grade for Pakistan soils to produce high tobacco yields. An attempt was made to manufacture this grade on the pilot scale. Field experiments were conducted for the study of its agronomic efficiency. Physical Quality control measures for the study of its keeping quality were carried out. These studies included hygroscopicity, hardness, caking tendency etc. along with other parameters keeping in view the climatic conditions. No evidence of general superiority was found between the indigenous grade and the imported one.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Nutrient cycling in agroecosystems 32 (1992), S. 13-17 
    ISSN: 1573-0867
    Keywords: physical properties ; comparative study urea prills ; quality control
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Physical properties are not governed in commerce by laws, however an attempt was made to analyse the urea being produced by six companies in Pakistan to identify and highlight the best quality control for important physical properties tests. The parameters indicated in tests were strictly followed for ensuring the standardized basis of comparison.
    Type of Medium: Electronic Resource
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