A J Southwest Landscape Maintenance, Inc.

Corn gluten meal is a natural pre-emergent fertilizer (9.5-0.5-0.5) that reduces the germination and establishment of troublesome annual weeds. It is 60% protein and approximately 10% nitrogen by weight. It is a by-product of the wet milling process and commonly used in pet and livestock feed. It can be used in vegetable gardens as a fertilizer and can help with weed control. Use it only after your vegetable seeds are up and young plant roots are well established. It is a powerful fertilizer, and will create large healthy weeds if applied after they germinate. It was determined that corn gluten meal stops root formation of germination sprouts. Seeds treated with corn gluten meal developed top shoots but no roots, and died when water was withheld from the soil surface. It was also tested for detrimental effects on established grasses. Not only does corn gluten meal not damage mature grass, it is an excellent organic fertilizer. Apply at 15-20 pounds per 1000 square feet. It is best applied in February and September. 

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