This publication discusses the many types of fertilizers and soil amendments available for organic plant production. Fertilizer formulations, nutrient availability, and application practices for common organic products are also explained. ...
Adding organic matter is the best way to improve nearly all kinds of soils.
Based on soil and tissue test results, recommends amounts of fertilizer and lime needed for hops.
Are you thinking about using manure to fertilize your farm but want more information? Properly managed manure applications recycle nutrients to crops, improve soil quality, and protect water quality. From deciding whether manure is ...
This publication compares composted and uncomposted manure; explains the composting process; describes equipment and strategies for composting; and lists uses, advantages, and drawbacks of compost. Discusses regulations, and briefly mentions methods for composting animal carcasses.
Compost is an acceptable amendment for blueberry plants, but it's important to test it before you apply it. Pay attention to pH and nutrient levels, and watch out for weeds.
Predicting Nitrogen Availability from Organic Amendments: laboratory, Field, and Computer Stimulation
A study to improve the ability to predict nitrogen availability from organic soil amendments, including improved accuracy of Nitrogen availability estimates, to target amendment application rates to meet crop N needs.
This article describes how to determine vineyard nutrient needs through tissue and soil sampling.