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Reduce Soil Erosion. Soil conservation , some methods Terracing Contour planting Strip cropping with cover crop Alley cropping, agroforestry Windbreaks or shelterbeds Conservation-tillage farming No-till Minimum tillage Identify erosion hotspots. Fig. 12-24a, p. 302. - PowerPoint PPT Presentation

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Reduce Soil ErosionSoil conservation, some methodsTerracingContour plantingStrip cropping with cover cropAlley cropping, agroforestryWindbreaks or shelterbedsConservation-tillage farming No-tillMinimum tillage

Identify erosion hotspots2

Fig. 12-24a, p. 302Figure 12.24Soil conservation methods include (a) terracing, (b) contour planting and strip cropping, (c) alley cropping, and (d) windbreaks (Concept 12-6A).

Fig. 12-24b, p. 302Figure 12.24Soil conservation methods include (a) terracing, (b) contour planting and strip cropping, (c) alley cropping, and (d) windbreaks (Concept 12-6A).

Fig. 12-24c, p. 302Figure 12.24Soil conservation methods include (a) terracing, (b) contour planting and strip cropping, (c) alley cropping, and (d) windbreaks (Concept 12-6A).

Fig. 12-24d, p. 302Figure 12.24Soil conservation methods include (a) terracing, (b) contour planting and strip cropping, (c) alley cropping, and (d) windbreaks (Concept 12-6A).Solutions: Mixture of Monoculture Crops Planted in Strips on a Farm

7Conservation TillageConservation-tillage farming: method of soil cultivation that leaves the previous year's crop residue on fields before & after planting the next cropNo-till: involve planting crops directly into residue that either hasn't been tilled at all Minimum tillage: some residue has been removed, but at least 30 to 70% remains

No Till & Minimum TillagePlanting into corn residue (no till)Soybeans grown in striped rows between corn residue (minimum tillage)

Benefits of Conservation TillageEnvironmental benefits Reduces soil erosion by 60%-90% from rain & wind Improves soil and water quality by adding organic matter as crop residue decomposesConserves water by reducing evaporationConserves energy due to fewer tractor trips Reduces air pollution from dust and diesel Crop residue provides food and cover for wildlifeBenefits of Conservation TillagePractical benefits Fewer trips across the fields saves time and money (lowers fuel, labor and machinery maintenance costs) and reduces soil compaction that can reduce yieldsOptimizes soil moisture, enhancing crop growth in dry periods or on droughty soils