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Reasons for Leaf Testing The most reliable indicator of pecan or fruit tree fertility is the foliage. A chemical analysis can save money on fertilizer, but the sample must be taken correctly and at...

Water Testing for Human Consumption For information on testing water for human consumption in Oklahoma, contact the Oklahoma Department of Environmental Quality. Individuals living in Texas can...

Plants require nutrients and an acceptable soil pH to grow well. Soil testing is the best way to find out how much lime and fertilizer to apply based on the crop and existing field...