Soil Technology

Soil Technology
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Soil Technology

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Publisher: Agrotech Publications
ISBN: 9788183211666
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PREFACE Worlds 15 population live in India with only 2 of the land resources sustaining almost seven times the population pressure. This situation is worsening day by day with increasing population. India s population which was only 23.8 crore in 1901 has crossed the mark of 100 crore by the end of 20th century. The animal population is also on increase in a similar pattern, which is accentuating demand for fodder, forage and feed concentrates. The country is able to meet the fodder and forage demand by 1 3 from existing resources. Firewood is able to meet even smaller i.e. 1 10 part of total requirement. The country, however, is fortunate enough to be blessed with good quantum of solar radiation, climate favourable for all the year round cultivation together with good water supply system, all of which favour intensive cultivation to make the country self sufficient to meet most of the essential requirement of her food, fiber and fire requirements. Food grain production could be increased by 3 to 4 times the present production. India endoves an area of 145 million hectares under cultivation which is considerably more than in several countries but the productivity much lower as compared to those harvested on experimental farms. The per hectare production is much lower ps compared to many other countries of the world mainly because a big fraction of our farm land is engulfed with problematic soils which restrict our productivity. There is no possibility of increasing farm productivity by bringing new areas under plough. The only avenue left to improve production is to bring problem soils under production by adopting scientific management of such soils. The soils that are barren due to some or the other problem could be successful cultivated after overcoming their problems. It is however pre-requisite to understand and analyse the principal cause responsible for restricting their potential productivity and to adopt schuch technologies, which can improve their productivity. Considerable work has already been undertaken in India and other countries to undertake surveys and research works but they are all scattered in different journals and reports. An earnest effort has been made by the authors to bring all such usable technologies pertaining to problematic soils together to help stakeholders realise their production potential. While choosing the subject matter and problem soils emphasis has been given to soils spreaded in large areas, which, if managed scientifically could contribute substantially in enhancing the productivity. The present book incorporates four typical soil types whose understanding and management can lead to vast addition to country s output. These are management of salt affected soils, acid soils, calcareous soils and waterlogged soils. It is hoped that this book will prove very useful to students, teachers, researchers, extension workers, planners and administrates. Although every effort has been made to make it errorless yet some mistakes might have been crept in. We shall be grateful receive critical comments and suggestions to improve the next edition for which no stone will be left unturned. G L M aliw al L L Som ani
ABOUT AUTHOR Dr. G.L. Maliwal saw the light of the day on 16th November, 1942, obtained M.Sc. Ag. from Rajasthan College of Agriculture, Udaipur in 1965 and Ph.D. Degree from University of Udaipur, Udaipur in 1968. Dr. Maliwal had post doctoral research at Moscow State University, Krasnadar, USSR in 1968-1970. During the last 38 years of active research and .education Dr. Maliwal has made valuable contribution in the field of irrigation water quality, soil salinity, utilization of waste water in agricultural, water management and dry land farming and guided M.Sc. Ag. and Ph.D. students. He held responsible positions at University of Udaipur, Udaipur 1966-76 and Gujarat Agricultural University 1976-2002 . Before'retirement, he was principal Investigator of the project on "use of