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  • 1
    ISSN: 1573-0867
    Keywords: Liming ; B nutrition ; pea ; corn ; hot-water soluble B ; soil pH ; acid Alfisol
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract A field experiment was conducted during 1986–87 on a sandy loam acid Alfisol of Barapani, Meghalaya, India to study the effect of liming on boron nutrition of pea and corn grown in a sequence. Lime and boron were applied to pea and their residual effect was studied on corn. Application of 1.5 kg B ha−1 significantly increased the pod and stover yield of pea. A sharp yield depression occurred at higher B rates. Liming accentuated B deficiency in the absence of B treatment and it cured toxicity arising from excess B supply. A combination of B at 1.5 kg ha−1 and lime at 3.0 t ha−1 was optimum for pea, but this level of B application was insufficient to meet B requirements of succeeding corn. With higher rates of B fertilization, the residual effect of B on corn yield was significant. Concentration of B in shoot, pod, grain and stover of crops increased with the rate of B application. With increasing liming rate, B concentration decreased. Addition of B increased the hot-water soluble B in soil. The availability of native and added B decreased sharply with increasing liming rate.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 115 (1983), S. 103-114 
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Die Copolymerisationsparameter einiger halogensubstituierter aromatischer Amine wurden nach der Methode von Kelen-Tüdős und Fineman-Ross graphisch bestimmt. Bei der Copolymerisation mit den Comonomeren p-Toluidin oder p-Nitrophenol erwies sich die Reaktivität der halogensubstituierten aromatischen Amine in der Reihenfolge der Basenstärke ansteigend. Jedoch kehrt sich diese Reihenfolge um, wenn diese halogensubstituierten Amine mit p-Nitroanilin copolymerisiert werden. Diese Umkehr der Reaktivität wurde mit der Polarisation und Resonanzstabilisierung der Monomeren erklärt.
    Notes: Reactivity ratios of some halogen substituted aromatic amines have been determined by using Kelen-Tüdős and Fineman-Ross linear graphical methods. On copolymerization with p-toluidine or p-nitrophenol as comonomer, the reactivity of halogen substituted aromatic amines was found to be in the order of their basic strength. However, this order of reactivity gets reversed when these halogen substituted amines are copolymerized with p-nitroaniline. This reversal of reactivity has been interpreted in terms of polarization and resonance stabilization of the monomeric species.
    Additional Material: 15 Ill.
    Type of Medium: Electronic Resource
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