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Vertisols --- Soil management

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Soil management --- Soil salinization --- Soils, Salts in

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Vertisol --- Vertisols --- Climatologie --- Climatology --- Irrigation --- Eau du sol --- Soil water --- Sol argileux --- Clay soils --- Labour --- Ploughing --- Système de culture --- cropping systems --- Agriculture traditionnelle --- Traditional farming --- Drainage --- drainage --- ILCA --- Afrique au sud du Sahara --- Africa South of Sahara --- Ethiopia --- 631.445.723 --- 631.11 <66/67> --- -Soil management --- -Soils --- Soil science --- Agronomy --- Shrink-swell soils --- Swell-shrink soils --- Soils --- Grumusol. Black friable soils. Vertisols --- Farms, farm properties and farming systems--States and territories south of the Sahara. Sub-Saharan Africa --- Congresses --- Management --- Conferences - Meetings --- -Grumusol. Black friable soils. Vertisols --- 631.445.723 Grumusol. Black friable soils. Vertisols --- -631.445.723 Grumusol. Black friable soils. Vertisols --- Soil management --- drainage. --- 1988

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631.459 --- Soil conservation --- -Soil erosion --- -#ABIB:dd.Prof.R.Dudal --- 631.459 Erosion --- Erosion --- Accelerated erosion --- Soils --- Conservation of soil --- Erosion control, Soil --- Soil erosion --- Soil erosion control --- Research --- -Methodology --- Control --- Prevention --- Conservation --- Methodology. --- #ABIB:dd.Prof.R.Dudal --- Agricultural conservation --- Soil management --- Research&delete& --- Methodology --- Soil erosion - Research - Methodology --- Soil conservation - Research - Methodology

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Begun in 1941 as an outgrowth of Friends of the Land, the journal The Land was an attempt by editor Russell Lord to counteract -- through education, information, and inspiration -- the rampant abuse of soil, water, trees and rivers. But for all its seriousness of mission, The Land was a stimulating mix of fact and charm. It included literature, philosophy, art, and the practical observations of farmers and conservation workers, to encourage small farmers to understand and apply conservation principles to their lands.This anthology, a fascinating mosaic, compiled from the 13 years of The Land tells in fiction, non-fiction, poetry, and philosophy the story of how we changed from a nation of small farms to the agribusiness we have today. Among the 40 authors included are conservation and literary giants such as Aldo Leopold, E. B.White, Louis Bromfield, Paul Sears, Allan Patton and Wallace Stegner.

Nature conservation. --- Agriculture. --- Agricultural ecology. --- Soil conservation. --- Ecology. --- Balance of nature --- Biology --- Bionomics --- Ecological processes --- Ecological science --- Ecological sciences --- Environment --- Environmental biology --- Oecology --- Environmental sciences --- Population biology --- Conservation of soil --- Erosion control, Soil --- Soil erosion --- Soil erosion control --- Soils --- Agricultural conservation --- Soil management --- Agriculture --- Agroecology --- Ecology --- Permaculture --- Farming --- Husbandry --- Industrial arts --- Life sciences --- Food supply --- Land use, Rural --- Conservation of nature --- Nature --- Nature protection --- Protection of nature --- Conservation of natural resources --- Applied ecology --- Conservation biology --- Endangered ecosystems --- Natural areas --- Control --- Prevention --- Conservation --- Environmental aspects --- Agricultural ecology --- Nature conservation --- Soil conservation