With over 40 years farming experience, WRT, a California family-run company, has been helping farmers restore life to the soil, crops, and livestock and nutrition to the food. WRT provides customized, effective, and sustainable solutions and quality, tested products that improve plant and human health and foster true environmental stewardship.

“My team and I have been helping solve farm and livestock problems with trusted programs that get results for many years.”

John Witzke, Farmer, Founder WRT


Baicor® pledges to provide products that excel in effectiveness and quality. We are continuously improving products and developing new ones that incorporate natural components for increased uptake, chelation, and utilization. Continuous research incorporates the use of new proprietary agents that have shown to be scientific breakthroughs in enhancing plant nutrition. Proprietary agents may include natural growth promoting components, mixtures of organic acids, amino acids, carbohydrates, extracts from plants and micro-organisms, proponents of humic acid and folic acid, agents to alleviate crop stress (chemical damage, frost, heat drought).


Bio-S.I.™ Ag – “SELECT” can help your farm: We know the most important thing to you is crop production, grade and marketability of your crop at the highest possible price. When we see chemical cost going higher and higher we need to make whatever we use more efficient. Using Bio-S.I.™ Ag – “SELECT” improves the efficiency of your fertilizer program and reduces the environmental impact of chemical use.


News & Press

The latest articles and press releases
about WRT and our activites

09-10-2015 The WRT Approach: Comprehensive, Customized, Accurate &…
12-09-2014 The Merced Sun Almond Report outlines huge…
12-09-2014 The Modesto Bee Almond Report outlines huge…


Visit us at the following
upcoming shows & events

May 2015 Duarte Friends Day
October 2017 CAPCA

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Joseph Witzke

Gregory Gilton

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