Effect of Spray-N-Grow Micronutrient Complex on Yield and Quality of Hydroponic Greenhouse Tomato Crops

Lynette Morgan, Ph.D. & Simon Lennard, M.Hort.Sc.
SUNTEC International Hydroponic Consultants
Location: New Zealand
Date: 2000-2001
Variety: Taupo

TRIAL SUMMARY:

1. Spray-N-Grow increased yield 16.8%

2. Spray-N-Grow increased shelf life by six days or 27%

3. Spray-N-Grow fruit was larger

4. Spray-N-Grow plants had fruit set 3-4 days before control

5. Spray-N-Grow plants were stronger and had noticeably thicker stem diameter

6. Spray-N-Grow plants produced a significantly higher number of fruit in the desirable size grades of 80-180 grams

7. Spray-N-Grow increased brix 8.1%

8. Spray-N-Grow tomatoes did not experience softening tissue, and end of shelf period was determined by “water loss” whereas untreated fruit often developed soft brown areas and overall softening

9. Taste panel (30 members)…76% claimed the Spray-N-Grow tomatoes tasted sweeter than the control

Comments by Dr. Morgan

It appears that Spray-N-Grow affects many plant processes, which in turn influence fruit yield and quality in a positive manner.”

“Foliar fertilisation with Spray-N-Grow can result in not only improved fruit quality, but also an increase in yields within the same crop – an important consideration for any commercial hydroponic producer.”