John Warmerdam is a third-generation stone fruit grower in the San Joaquin Valley of California. His grandfather came to the area from Holland in 1911 and started a small farming operation that John’s father, John N. Warmerdam, eventually took over. Today John and his dad farm over 350 acres of peaches, plums, nectarines, kiwi, and almonds. The Warmerdams also have one of the largest cherry-growing operations in the southern San Joaquin Valley and have been innovators in the fruit packing industry for 45 years. In this episode, they discuss:

  • Cultural management practices for stone fruit
  • Transitions in his farming systems
  • Mite management
  • Driving factors for considering regenerative management
  • Pruning and thinning management
  • Future water usage issues
  • Generational shifts in farming

Additional Resources: Concepts for Understanding Fruit Trees by Theodore DeJong

Learn more about Warmerdam Packing Learn more about John Warmerdam

About John Kempf John Kempf is the founder of Advancing Eco Agriculture. A top expert in the field of biological and regenerative farming, John founded AEA in 2006 to help fellow farmers by providing the education, tools, and strategies that will have a global effect on the food supply and those who grow it.

Through intense study and the knowledge gleaned from many industry leaders, John is building a comprehensive systems-based approach to plant nutrition – a system solidly based on the sciences of plant physiology, mineral nutrition, and soil microbiology.

Support For This Show & Helping You Grow The recognized leader in regenerative agriculture since 2006, AEA (Advancing Eco Agriculture) is on a mission to help growers become more resilient, efficient, and profitable. 

AEA works directly with growers on the application of its unique line of liquid mineral crop nutrition products and biological inoculants. Informed by cutting-edge plant and soil data gathering techniques, AEA’s science-based programs empower farm operations to meet the crop quality markers that matter the most. 

AEA has created real and lasting change on millions of acres with their products and data-driven services by working hand-in-hand with growers in North America to produce healthier soil, stronger crops, and higher profits.

Beyond working on the ground with growers, AEA leads in regenerative agriculture media and education, producing and distributing the popular and highly-regarded Regenerative Agriculture Podcast, inspiring webinars, and other educational content that serve as go-to resources for growers around the world who thirst for actionable information about regenerative agriculture.

Learn more about AEA’s regenerative programs and products and check out the Regenerative Agriculture Podcast. 

VIDEO: For more conversations with John Kempf about regenerative agriculture, watch this amazing conversation between John and three AEA grower partners about how regenerative agriculture is changing lives and conventional farming:

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