Job offersmore »

Tweeting Growers

Top 5 - yesterday

Top 5 - last week

Top 5 - last month

Exchange ratesmore »

Foliar applications increase yield but modulate tomato fruit quality

The current research aimed 1) at evaluating the effects of three biostimulants (legume-derived protein hydrolysate, PH; plant and seaweed extract, PE and SWE) on yield performance and nutritional quality, mineral profiling, antioxidant activities, lycopene, total phenols and ascorbic acid of greenhouse tomato (Solanum lycopersicum L.) under soil culture and 2) to assess the economic profitability of biostimulant applications.

Plants were sprayed four times during the growing cycle with a solution containing 1, 3, and 3 mL∑L−1 of PE, SWE, and PH, respectively. Foliar applications of biostimulants improved the early and total marketable yield of fresh tomato. The increase of total yield by PE, SWE, and PH was 11.7%, 6.6% and 7.0%, respectively, in comparison with untreated plants. Legume-derived PH increased lycopene, total soluble solids, and K and Mg contents, thereby increasing the nutritional value of the fruits.

The applications of SWE, and to a lesser degree PH, enhanced the Ca concentration in the fruit tissue. Our findings indicated that the three tested biostimulants, although they increased the total production cost, improved the nutrient status and yield performance of the crop to a level resulting in net economic benefits.

Access the full study at HortScience.

Publication date: 10/25/2017



Other news in this sector:

3/2/2018 Magnesium deficiency of hydroponic and container grown basil
2/23/2018 US: Four scientists join Inocucor Scientific Advisory Board
1/29/2018 Local raw material provides alternative to coconut products
1/25/2018 Portugal: Asfertglobal wins Green Project Award 2017
1/23/2018 PRO-MIX is launched in France
1/19/2018 US (NC): Yara opens new warehouse facility in Wilmington
1/18/2018 UK: Amendments to AHDB Nutrient Management Guide (RB209)
1/18/2018 US (CA): WISErg raises $19.2 million to build California plant
1/9/2018 Video: Why your controlled release fertilizer didn't work as expected
12/21/2017 Levity CropScience appoints American distributor
12/7/2017 Use of biostimulants to increase in the UK, says survey
12/6/2017 "UK fertiliser industry faces twin challenges of being in the EU and leaving it"
12/5/2017 Chinese growers show interest in Italian expertise in biostimulants
11/30/2017 China: Price of winter storage fertilizer continues to rise
11/24/2017 AkzoNobel breaks ground for European micronutrients expansion project
11/17/2017 US (FL): Effect of phosphorus rates on tomato in calcareous soil
11/7/2017 Yara signs Ethiopian mining agreement for potash production
10/31/2017 UK: New soluble powders plant for Omex Agrifluids
10/25/2017 "UK is 30-40 years away from 'eradication of soil fertility'"
10/24/2017 Carbon coating gives biochar its garden-greening power