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Author: Robert Orr Whyte
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 222
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Book Description
Author: R.O. Whyte
Publisher: Springer Science & Business Media
ISBN: 9401023255
Category : Science
Languages : en
Pages : 233
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Book Description
1.1 Objective and scope These chapters are not intended as a treatise on range management of tropical grazing lands, nor on the agronomy of sown pastures and cultivated fodder crops, aspects of applied science that are only one stage above scientific farming and use of land. An attempt is made to present the vegetation sciences, or botany and ecology in their widest aspects, as the essential background for their application in economic land use and plant and animal husbandry. The basic thesis is that science is global, but that its practical application is restricted to specific biological and socio economic habitats. The region covered is termed the intertropical zone. This comprises the equatorial latitudes, the tropics and subtropics. It is not only that part of the globe lying between latitudes 30° north and south of the Equator, as proposed by some writers (DAVIES, W., 1960; repeated by DAVIES & SKIDMORE, 1966). Rather is it those regions of the world in which, at the lower elevations, certain families and members of the Gramineae and Leguminosae grow wild or can be cultivated. It may be a matter for discussion whether these plants in their wild communities or sown or planted crop mixtures are better indicators of a biological environment than the instruments and criteria of the meteorologists.
Author: Robert Orr Whyte
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 222
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Book Description
Author: O. W. Robert
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: R. O. Whyte
Publisher:
ISBN:
Category : Grassland ecology
Languages : en
Pages :
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Book Description
Author: Unesco
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 664
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Book Description
Author: Unesco
Publisher:
ISBN:
Category :
Languages : en
Pages : 222
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Book Description
Author: UNESCO
Publisher:
ISBN:
Category :
Languages : fr
Pages : 655
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Book Description
Author: Robert Orr Whyte
Publisher:
ISBN:
Category : Range management
Languages : en
Pages : 121
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Book Description
Author: István Szabolcs
Publisher:
ISBN: 9789230019334
Category : Alkali lands
Languages : en
Pages : 0
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Book Description
Author: A. V. Bogdan
Publisher: Longman Publishing Group
ISBN:
Category : Science
Languages : en
Pages : 500
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Book Description
The grasses. Classification and distribution. Environment in relation to some aspects of grass physiology. Day length. Light intensity. Temperature. Rainfall. Soils. The structure of the grass plant. Cultivation. Establishment. Management. Association with the legumes. Herbage yields. Conservation. Nutritive value. Reproduction. The structure of floral parts. Flowering and pollination. Fertilization. Apomixis. Seed. Seed germination. Seed production. The more important species. The legumes. Classification and distribution. The structure of the leguminous plant. Nitrogen fixation by the legumes. In mixture with the grasses. Cultivation. Pests and diseases. Yields, utilization. Chemical composition, nutritive value. Palatability, toxicity. Reproduction. The flowers. Flowring, pollination. Seed production and harvesting. Breeding. The more important species.
