Hydroponics Research,Spray-N-Grow Research

Butterhead Lettuce

Effect of Spray-N-Grow Foliar Micronutrient Complex on the Growth, Yield and Quality of a Hydroponic Butterhead Lettuce Crop

Dr. Lynette Morgan PhD & Simon Lennard M.Hort.Sc.
SUNTEC International Hydroponic Consultants
Location: New Zealand

Date: 2002


1. Spray-N-Grow increased yield by weight 121.0%

2. Spray-N-Grow increased average head weight 51.7%

3. Spray-N-Grow increased marketable heads 30.0%

4. Spray-N-Grow treated crop had earlier crop establishment and earlier head development

5. Spray-N-Grow treated heads were of better marketable quality after 10 day storage period 

Comments by Dr. Morgan

“Foliar fertilization with Spray-N-Grow can result in not only more rapid plant establishment and earlier growth with greater final head weight (yield), but improved shelf life – an important consideration for any hydroponic producer.”

We guarantee that your Spray-N-Grow treated crops will produce more than your control plot of the same size and type. Conduct your own trial. Treat both plots the same (fertilizer, water, pesticides, etc.) with the only variable being Spray-N-Grow. Follow all mixing and application directions. At harvest you’ll see the difference! If you are not satisfied, we’ll send a prompt refund.

No questions asked.

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