Add homemade worm castings instead of store-brought fertilizer #360012 - Ask Extension

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Add homemade worm castings instead of store-brought fertilizer #360012

Asked September 05, 2016, 9:41 PM EDT

Is it okay to just add worm castings and compost to my fruit and veggie garden instead of your typical store brought fertilizer? If so, how much? Please get back to me asap. I will respond very quickly!!

Hennepin County Texas

Expert Response

Unless the worm castings have a fertilizer ratio given on the label, you cannot know how much of any nutrient is being supplied by it.  Many fruits and vegetable crops need high levels of nutrients.  You can find the fertilizer need of each vegetable in our website's Grow It Eat It section, in the crop profiles.  

Here is our website's publication about all the different kind of fertilizer and what nutrients they supply (including worm castings):  http://extension.umd.edu/sites/default/files/_images/programs/hgic/Publications/HG42_Soil_Amendments...

 You need to find out the nutrient needs of each crop,  then match it with  the fertilizer that meets that need. 

ECN

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