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Nutrition Management at Critical Points of Influence

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John Kempf discusses how to reach the maximum genetic capability of your crop by recognizing critical points of influence. All crops have cycles during which either vegetative or reproductive energy is dominant in the plant. At the peak moment of each cycle, and again when the cycle switches from vegetative to reproductive, plants enter a critical window of time at which the correct support is paramount for yields and quality.

In this deck, learn about these critical points of influence, how to observe their occurrence in crops, and how to influence outcomes by applying nutrition and other inputs differently at each critical point. See the full presentation at https://youtu.be/hUYwX9FlcPY.

Published in: Science
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Nutrition Management at Critical Points of Influence

  1. 1. NUTRITION MANAGEMENT AT CRITICAL POINTS OF INFLUENCE A Webinar Hosted by AEA Featuring John Kempf
  2. 2. Critical Points of Influence Male | Female Expansion | Contraction Vegetative | Reproductive Growth occurs in cycles of alternating dominance. Critical Points of Influence occur when the hormone balance shifts from reproductive dominance to vegetative dominance.
  3. 3. Reproductive Bud Initiation 1. Number of buds 2. Bud uniformity 3. Bud size and energy 4. Blossom size 5. Blossom timing What can we impact during this CPI?
  4. 4. Critical Minerals 1. Calcium 2. Manganese 3. Boron 4. Zinc 5. Copper 6. Urea 7. Seaweed
  5. 5. Blossom/Pollination 1. Number of blossoms pollinated 2. Earliness/speed of pollination 3. Condensed pollination window 4. Pollen strength 5. Pollen tube strength What can we impact during this CPI?
  6. 6. Critical Minerals 1. Calcium 2. Manganese 3. Boron 4. Zinc 5. Copper 6. Seaweed
  7. 7. Cell Division 1. The development of as many high integrity cells as possible What can we impact during this CPI?
  8. 8. Critical Minerals 1. Manganese 2. Potassium 3. Calcium 4. Boron
  9. 9. Fruit/Grain Fill 1. Quantity of sugar transported to fruit or grain 2. Quantity of sugar produced in leaves 3. High fruit or grain quality parameters What can we impact during this CPI?
  10. 10. Critical Minerals 1.Potassium 2. Nitrogen 3. Manganese 4. Zinc 5. Boron� 6. Calcium 7. Copper
  11. 11. Ripening 1. The production of a ripe crop on green plants with proper senescence 2. Coloring, aroma, flavor, and related quality characteristics 3. Earlier or delayed senescence What can we impact during this CPI?
  12. 12. Critical Minerals 1. Boron 2. Cobalt 3. Magnesium 4. Sulfur 5. Molybdenum
  13. 13. Vegetative Growth 1. Rapid vegetative growth with tightly spaced internodes, high-carbon wood on perennial crops for higher future reproductive potential 2. Speed and mass of vegetative growth without the presence of nitrates for disease and insect resistance and higher-quality yield What can we impact during this CPI?
  14. 14. Critical Minerals 1. Calcium 2. Boron
  15. 15. For more in-depth agronomic information Sign up for the AEA email list at advancingecoag.com

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