Author: Pedro A. Sanchez
Publisher: CIAT
ISBN:
Category :
Languages : en
Pages : 504

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Book Description

Author: Robert L Burt
Publisher: CRC Press
ISBN: 1000305287
Category : Science
Languages : en
Pages : 282

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Book Description
This integrated collection describes the importance of forage legumes for pasture development and improvement in the tropics and subtropics. Leading agronomists review the magnitude of the need for pasture improvement; tropical and subtropical soil and climate environments; reports of the successful use of legumes in pasture development in a wet and a dry tropical environment; and the scope of the problem in terms of area to be developed and development logistics required. Three legume genera, Centrosema, Desmodium, and Stylosanthes, are discussed in detail--information is presented on taxonomy, adaptation, distribution, productivity, and usefulness--and considerable emphasis is placed on Rhizobium germplasm resources for these genera. A concluding section of technical essays addresses special considerations in using tropical legumes in pasture development and presents a coordinated multidisciplinary approach to legume exploration and evaluation.

Author: Lynn M. Gourley
Publisher: CIAT
ISBN: 8489206643
Category : Acid soils
Languages : en
Pages : 340

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Book Description
Soil in the tropics, classification and characteristics; phosphorus availability in the acid soils of tropical America; analysis methodologyfor tropical soils; strategies implied in the use and management of acid soils in Tropical America; a new methodology to select cultivars tolerant to aluminium and with high yield potential; calcium and root penetration in highly weathered soils; sorghum evaluation in the Llanos of Venezuela; potential role of grains sorghum in the agricultural systems of regions with acid soils in tropical latin america; effective screening techniques for tolerance to aluminium toxicity; tolerance to aluminium toxicity in upland rice for acid soils; breeding methodologyfor phosphorus efficiency and tolerance to aluminium and manganesetoxicities for beans (Phaseolus vulgaris L.); world sorghum germplasm collection and conservation; prospects for sorghum improvement for phosphorus efficiency; evaluation of mineral elements in sorghum grown onacid tropical soils; breeding aluminum-tolerant sorghums; finding and utilizing exotic al-tolerant sorghum germplasm.

Author:
Publisher: IRRI
ISBN: 9711042169
Category : Agriculture
Languages : en
Pages : 732

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Book Description

Author: Nand Kumar Fageria
Publisher: CRC Press
ISBN: 1439816964
Category : Science
Languages : en
Pages : 574

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Book Description
By the year 2050, the world's population is expected to reach nine billion. To feed and sustain this projected population, world food production must increase by at least 50 percent on much of the same land that we farm today. To meet this staggering challenge, scientists must develop the technology required to achieve an "evergreen" revolution-one

Author: P. J. Skerman
Publisher: Food & Agriculture Org.
ISBN: 9789251011287
Category : Nature
Languages : en
Pages : 900

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Book Description
The importance of grasslands. The classification and distribution of grasses. The world's major tropical grasslands. Performance and management of natural pasture. The case for improved pastures to replace indigenous species. Pasture improvement by introducing new species. Selection of pasture grass species, seed purchase and storage, and fertilizer needs. Pasture leys. Management of improved grassland in semi-intensive and intensive production systems. Reseeding the arid and semi-arid range. Handling difficult grasses. Grasses for special purposes. Utilization and conservation of forage. The chemical compostion and nutritive value of tropical grasses. The tropical grasses catalogue. Common names of tropical grasses. Common names of other plants. Index. Illustrations.

Author: Rattan Lal
Publisher: CRC Press
ISBN: 1482298031
Category : Science
Languages : en
Pages : 584

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Book Description
Discover the latest available knowledge on ways to reduce CO2 in the atmosphere! The problem of quickly mounting CO2 emissions in the fast-developing Latin American region was addressed in a symposium held in Piracicaba, Brazil, in June 2004. Carbon Sequestration in Soils of Latin America presents the latest available knowledge in soil C

Author: M.J. Wilson
Publisher: Springer Science & Business Media
ISBN: 1402021380
Category : Nature
Languages : en
Pages : 424

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Book Description
The red soils of China are typical in their chemical, physical and mineralogical characteristics of red soils in other tropical and sub-tropical areas of the world, particularly in South America, Africa and south-east Asia. For the most part, these soils are highly weathered and inherently infertile. They are acidic, nutrient deficient, poor in organic matter and have a low water-holding and supplying capacity. They cannot sustain arable cropping systems without the most careful management and are highly susceptible to soil erosion, particularly on sloping land. It is the purpose of this book to present recent research showing how the problems associated with using the red soils in China for sustainable agricultural production can be overcome, using a variety of traditional and novel approaches. In principle, these approaches should be useful in other tropical and sub-tropical countries faced with the problem of making the best use of their fragile red soil resources. The term "in principle" is used deliberately because, of course, the different red soil countries invariably operate within dissimilar socio-economic frameworks. At the present time, China may be considered to be in the process of an "industrial revolution", rather like that that took place in Britain in the late eighteenth and early nineteenth centuries.

Author:
Publisher:
ISBN:
Category : Agricultural innovations
Languages : en
Pages : 526

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Book Description

Author: L. 't Mannetje
Publisher: CABI
ISBN: 9780851999395
Category : Electronic books
Languages : en
Pages : 464

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Book Description
Considers a range of methods used by plant and animal production scientists to study grassland vegetation and animal performance. This volume replaces a previous title, ''Measurement of Grassland Vegetation and Animal Production'', published in 1978, but incorporates many new topics.