Read e-book online Agricultural Compendium. For Rural Development in the PDF

By B.V. Ilaco (Eds.)

ISBN-10: 0444419527

ISBN-13: 9780444419521

Agricultural Compendium: For Rural improvement within the Tropics and Subtropics makes a speciality of the improvement of rural assets within the tropics and subtropics, in addition to weather, water regulate, and animal construction.
The publication first deals info on weather and soil and land category. themes contain phenomena appropriate to agricultural meteorology, category of weather, mother or father fabrics of soils, soil fertility and outline, land review, and structures of soil class. The textual content then takes a glance at geodesy, in addition to aerial images, tools and add-ons, measuring tools, and calculation of surfaces.
The e-book elaborates on water keep watch over and land development, together with floor water and groundwater hydrology, drainage, irrigation, land clearing and leveling, reclamation of saline and alkali soils, and soil development. The textual content then examines agriculture, animal creation, fisheries, and farm economics.
The manuscript is extremely steered for agriculturists and readers drawn to the improvement of rural assets within the tropics and subtropics.

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Extra info for Agricultural Compendium. For Rural Development in the Tropics and Subtropics

Example text

Some of the activities are: • to specify the meteorological and biological observations which are required for agricultural meteoro­ logy and, where necessary, to organize a special network of agricultural meteorological stations and to supervise the work of these stations; • to collect and process such observations whether of a permanent or of a temporary nature; • to prepare and arrange for the publication and wide distribution of pamphlets containing meteorological advice and information of interest among agriculturists.

1/2 11 1954 Preliminpr y - Subjec t to Revisio n Fig. 1/9. Average annual potential evapotranspiration (India) Source: see Fig. 1 Temperature Temperature has an important impact on the health and productivity of plants and livestock. The temperature of plants can differ considerably from that of the air above them. The strong interaction of these two temperatures justifies the use of the air temperature as a criterion for plant and animal production. 1 Air temperatures The air temperature shows, in general, a systematic daily fluctuation.

Can be derived in various ways. Several alternative combinations of basic data can be used. Fundamental to all methods is the net radiation. This quantity can be measured, but also calculated with the aid of data of cloud cover, air humidity and air temperature. Air temperature and air humidity as such as well as the mean wind speed are of equal importance as radiation. Not only averages but also maximum and minimum values, variability and periodicity are required. For the interpretation of these data, the most exact information about instruments, their location and the surroundings and surface vegetation is required.

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Agricultural Compendium. For Rural Development in the Tropics and Subtropics by B.V. Ilaco (Eds.)


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