Biostimulants are no longer evaluated solely by their effect on vegetative development. Today, the true indicator of their efficacy lies in the final crop yield and the commercial value of the harvest. In this context, the results obtained with the application of SPIRUNOL during the 2024 season show that an improvement in plant physiology can translate into significant production increases under real growing conditions.
Eight independent trials conducted under the GEP (Good Experimental Practices) standard analyzed the performance of Spirunol, a biostimulant formulated with 9% free amino acids in different agricultural species. In all cases, treated crops outperformed the untreated control, both in production and in various quality parameters.
The greatest yield increases were recorded in strawberry, where production increased up to 76%. Also notable were the improvements obtained in melon (+57%), pear (+45%), lettuce (+40%), citrus (+15%), apricot (+13%), wheat (+13%), and corn (+9%).
But the increase in harvest was not the only effect observed. The trials also reflected improvements in characteristics directly related to product commercialization, such as soluble solids content (°Brix), fruit caliber, thousand-grain weight, or the reduction of cracking in melon. These parameters reinforce the idea that greater physiological efficiency not only increases the quantity produced, but also its quality.
Fruit trees show a particularly outstanding response
Among all the crops evaluated, fruit trees offered some of the most representative results of SPIRUNOL’s effect on productive potential.
In pear, the treatment increased production up to 45%, accompanied by 39% more fruits per branch. In addition, the fruits showed improvements of 10 to 13% in soluble solids content and increases of 7 to 9% in caliber and height.
In citrus, the response began even before fruit formation. Fruit set increased up to 74%, which subsequently translated into 18% more harvested fruits and a 15% increase in production compared to the control.
In apricot, the highest trial yield was also recorded, with a 13% improvement, in addition to greater flowering and an increase of between 5 and 6% in sugar content.
Physiology as the starting point of profitability
Behind these increases lies the plant’s capacity to maintain efficient physiological functioning during phases of greatest metabolic demand. In many crops, summer coincides with a period in which they must simultaneously sustain vegetative growth, root system development, and fruit filling and sizing, while enduring high temperatures and, frequently, water stress situations.
SPIRUNOL is formulated with 9% free amino acids that promote metabolic activity and root development, helping the plant manage its resources more efficiently during these critical moments. Added to this is the possibility of applying it both by foliar application and through fertigation, a dual modality that facilitates adapting the use strategy to the needs of each crop and its phenological stage.
The results of the 2024 season demonstrate that productivity does not depend solely on the conditions existing at the time of harvest. A large part of the yield is built during the previous phases of the crop cycle, when the plant must respond to high energy demand without compromising its physiological balance.
The GEP trials conducted with SPIRUNOL show that optimizing these processes allows translating that physiological improvement into parameters that the farmer does perceive directly: more production, higher quality fruits, and a harvest with greater commercial value.