Silicon is the second most abundant element in the earth at about 28% of the crust (behind oxygen at 46%). Even with this massive amount, the majority of that silicon is not available to plants. Though silicon has not been defined as an essential substance, it may have been overlooked as essential since it is difficult to have a growing situation without silicon present in either soil or hydroponically. For the complete story click the download link below.
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The Agronomy Handbook is a comprehensive resource that discusses soil properties, plant essential nutrients, as well as soil test results and recommendations. It also covers soil sampling, fertilizer application methods, nutrient deficiency symptoms in plants, plant tissue analysis, nutrient uptake and removal in crops, and conversion factors for U.S. and metric measurements.READ MORE
How to calculate the Cation Exchange Capacity (CEC) is a calculation based on soil analysis results of Ca, Mg, K, Na, and H.READ MORE
This Memo helps you understand the challenges associated with cyst nematodes. We cover how to sample a field or area, how to submit samples for cyst analysis, and how to interpret results and manage cyst nematode affected fields.READ MORE