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Variable Rate Fertilizer Though Center P ivot Irrigation

Variable Rate Fertilizer Though Center P ivot Irrigation. Logan Dean Soils 4213 4/16/12. Grow roughly 75 0 acres of corn, 450 acres of soybeans, 50 0 acres of wheat annually, and a small patch of alfalfa in Oklahoma . 2200 acres of cotton and peanuts in Texas, with 4 center pivots .

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Variable Rate Fertilizer Though Center P ivot Irrigation

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  1. Variable Rate Fertilizer Though Center Pivot Irrigation Logan Dean Soils 4213 4/16/12

  2. Grow roughly 750 acres of corn, 450 acres of soybeans, 500 acres of wheat annually, and a small patch of alfalfa in Oklahoma. • 2200 acres of cotton and peanuts in Texas, with 4 center pivots. • Family milked cows from 1948-1997, then switched to a small (150 hd.) cow/calf operation, currently downsized to 25 head. Background information

  3. The need for variable rate fertilizer application is a great step forward in center pivot efficiency. • With large tracts of land and obstacles there will be a variance in needs. • Variable Rate Seeding has different nutrient requirements About VRF

  4. Valley Irrigation released a statement February 2nd ,2010 that they will offer variable rate fertilizer using technology from Computronics Holdings Ltd. • Computronics Holdings Ltd. worked with the University of Georgia in 1999 to develop the Farmscan VRI control About VFR Con’t.

  5. Apply VRF to different zones • One square meter accuracy • Shut individual nozzles off (important if you have drainage ditches in the field, or overlapping pivots.) Advantages

  6. Minimizes water use • Maximizes water efficiency • Maximizes water efficiency Advantages con’t.

  7. High initial cost • Struggles with applying fertilizer without applying more water • Controlling amount of fertilizer to end of pivot • Controller programming • Mapping and sensing Disadvantages

  8. Aerial Images of 3 of our pivots

  9. Where we would benefit

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