Nutrient management

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A happy gardener's hands in the soil. John Ober
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Nutrient Availability

September 23, 2025
To grow, plants must absorb nutrients from the soil. Not only must these nutrients be present in sufficient quantities, they must also be available for uptake by the plant. Nutrient availability is primarily determined by soil texture and pH. Soil texture is the amount of sand, silt, clay and organic…
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bright green growth on green stem of walnut tree
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Finish Walnut Season Strong for Best Crop Production

August 25, 2025
By Hardeep Singh, Luke K Milliron
September Walnut Orchard Tasks for Agriculture To-Do List  September is the time to focus on finishing the crop season well by protecting the kernel color and quality, keeping the insect pests in check, and setting the trees up for a stress-free winter. Irrigation and Nutrition Management in the…
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Irrigator watering greenhouse plants
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Share Your Insights, Receive a Free Water & Nutrient Efficiency Checkup!

August 8, 2025
By Amrita Mukherjee, Grant E Johnson, Esther N Lofton
UC Davis and UCANR, with support from the CDFA’s Water-Energy Technology Assistance (WETA) program, are inviting California protected agriculture growers—whether hydroponic, using drip irrigation, liquid feed fertilizers, or recycling water—to take a short survey on water and nutrient management. The 15–20…
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