9788176222129 - Conservation of the Soil von Gustafson, A. F. (2 Ergebnisse)

Zustand: New. pp. xvii + 312 195 Figures, Illus., Maps.

Contents Preface 1 Introduction 2 Soil erosion 3 Results of soil erosion 4 Influence of precipitation and latitude on soil erosion 5 Influence of slope and soil on erosion 6 Influence of natural land cover on soil erosion 7 Effects of crops and tillage on erosion 8 Maintenance of organic matter and fertilization and rotation of crops 9 Contour tillage and planting essential 10 Contour strip cropping 11 Terraces 12 Meadows pastures and forests 13 Control and elimination of Gullies 14 Control of wind erosion 15 Control of wave erosion 16 Control of erosion on public highways 17 The control of floods IndexSoil erosion is an age-old problem It has been recognized as a menace to agriculture A beginning has been made in obtaining accurate information on the losses of soil by erosion and on methods of controlling these losses under varied cropping systems This book is presented for the use of farmers policy-makers and for use in courses in soil conservation 312 pp.