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Fertilization of Dryland and Irrigated Soils

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Release : 2012-12-06
Genre : Technology & Engineering
Kind : eBook
Book Rating : 274/5 ( reviews)

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Book Synopsis Fertilization of Dryland and Irrigated Soils by : J. Hagin

Download or read book Fertilization of Dryland and Irrigated Soils written by J. Hagin. This book was released on 2012-12-06. Available in PDF, EPUB and Kindle. Book excerpt: Much has been learned about the proper and judicious use of fertilizers. Fertilizer application by farmers has grown from an art to a science. As food producers have strived to increase crop yields by overcoming nutrient deficiencies the use of fertil izers has increased dramatically. This has created a large chemical industry capable of supplying the needed plant food elements. A more complete understanding of soil chemistry and plant nutrition has led to greater fertilizer use with improved fertilization methods and crop cultural practices. Improved fertilizer technology has led to the production of more efficient forms of fertilizer. The modem fertilizer industry and with it fertilization practices began in the humid countries of the world. The use of fertilizers in arid and semiarid regions was later in development, although agriculture had its beginning in semiarid and arid regions. The development offertilizer use is parallel to industrial development in various areas of the world.

Irrigated Soils

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Author :
Release : 1954
Genre : Arid regions agriculture
Kind : eBook
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Book Synopsis Irrigated Soils by : David Wynne Thorne

Download or read book Irrigated Soils written by David Wynne Thorne. This book was released on 1954. Available in PDF, EPUB and Kindle. Book excerpt: Problems of irrigated regions; Soil as a medium for plant growth; Soil and water relations; The salt problem; Evaluating land for irrigation; Source and quality of irrigation water; Measuring irrigation water; Planning A farm for irrigation; Irrigation practice Dainage; Reclamation and management of saline and alkali soils; Control of the physical properties of soil; Control of the biological properties of soil; Maintaining organic matter in soil; Minerals and plant growth; Fertilizer elements and fertilizer materials; Using fertilizers; Soil management for general field crops; Soil management for fruit, vegetable and specialty crops; Farm planning.

Water-holding Capacity of Irrigated Soils

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Author :
Release : 1922
Genre : Evapotranspiration
Kind : eBook
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Book Synopsis Water-holding Capacity of Irrigated Soils by : Orson Winso Israelsen

Download or read book Water-holding Capacity of Irrigated Soils written by Orson Winso Israelsen. This book was released on 1922. Available in PDF, EPUB and Kindle. Book excerpt:

The Movement of Water in Irrigated Soils

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Author :
Release : 1912
Genre : Hydraulics
Kind : eBook
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Book Synopsis The Movement of Water in Irrigated Soils by : John Andreas Widtsoe

Download or read book The Movement of Water in Irrigated Soils written by John Andreas Widtsoe. This book was released on 1912. Available in PDF, EPUB and Kindle. Book excerpt:

Soil Salinity under Irrigation

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Release : 2011-11-19
Genre : Technology & Engineering
Kind : eBook
Book Rating : 385/5 ( reviews)

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Book Synopsis Soil Salinity under Irrigation by : I. Shainberg

Download or read book Soil Salinity under Irrigation written by I. Shainberg. This book was released on 2011-11-19. Available in PDF, EPUB and Kindle. Book excerpt: The importance of irrigation in the world's agriculture is rapidly increasing. Although it is practised on a large scale mainly in arid and semi-arid zones, supplementary irrigation is becoming popular in semi-humid regions as well. The record of irrigation speaks for itself in terms of increased crop production. However, the question remains as to how permanent the achievement may be. Judging from history, it seems that irrigation eventually failed in many regions because the knowledge and technology available to society at the time were incapable of coping with the problems created. Undoubtedly soil salinity is the most prevalent and widespread problem limiting crop productivity in irrigated agriculture. It has, therefore, attracted the attention of the scientific community since the advent of modern agronomic research. Through the past six to seven decades a considerable body of information has been accumulated, which has promoted the understanding of the principles involved and helped to develop the technology for coping with the problems. Our present knowledge, if judiciously applied, is adequate for coping with many of the salinity problems resulting from mismanagement of irrigation and drainage. But for this knowledge to be used, it has to be generally known and understood and be re-examined from time to time.

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