Page images
PDF
EPUB

Planned grazing systems return more than they cost. Proper range management not only protects the soil by preventing overgrazing but also helps insure the continued productivity of pasture and rangeland. In addition, well-managed rangeland is better able to withstand the effects of drought and thus enables a rancher to better maintain his livestock during extended dry spells without resorting to costly emergency measures.

[graphic]

Conservation tillage is gaining popularity throughout the country. This relatively new practice saves fuel, reduces erosion, and cuts field work. The Lyon County, Kentucky, field pictured is shown immediately after a four inch rain. Little erosion damage is evident.

[graphic]
[ocr errors]

This is a cropland field in Henry County, Alabama, where erosion and resulting sedimentation occurred due to farming up and down the slope with no conservation measures applied. In 1977, sheet and rill erosion on cropland alone totaled almost 2 billion tons. Half of this total was excess erosion -- that

which occurred at rates above those that soils can tolerate without affecting their long-term productive potential.

[graphic]

This shows a seeded wheat field in the Palouse of Washington State that lost 200 tons of soil per acre during one rain storm.

Nowhere in the Nation has soil and sediment erosion been greater over time than
in the nonirrigated grain lands of the Palouse where water, wind, and improper tillage have stripped
irreplaceable topsoil for more than 50 years.
On-farm irrigation efficiencies of 70-80 percent are feasible with currently available technology and
management techniques. Here in Hale County, Texas, a field has been bench leveled so that irrigation
water use can be effectively managed. A more even distribution of water will result with minimal waste.

[graphic]

Precise amounts of water can be applied with assurance that the total field will receive adequate and uniform amounts.

[graphic]
« PreviousContinue »