Experimental tests ANTI-STRESS ACTION AND BIGGER YIELDS

CONSf NTITO IN ACWCrXlURA BKXOGO PRODUCT WITH SRECriC ACTION SOLUTION 0* FILTERS) SEAWEEDS OKM* All OWED IN ORGANIC AGftCUTuftf PROOUfT AVEC ACTION SPECOTQUF SOLUTION DC :rcMC DALCUESHW ADMS CN ACRCUITUPE BOLOCJtXJ* PNOtKX IO DE ACCION tSPECIFIC* VXUllON OE CREMA DE ALLAS HI 1RAD* PER^niOO EN AOHCIX TLRA fCOLCCA* Hydroalga Organic nitrogen fertilizer. Fluid extract of yeast containing brown seaweeds, micronutrients and amino acids of plant origin. It can be used on all crops both in foliar application and fertigation. Allowed in organic agriculture. - better growth, even under water and saline...

Easily overcoming water and saline stress Nowadays cultivations are becoming more and more intensive, with a mayor exploitation of soils and water resources. Furthermore, irrigation with a high electrical conductivity water and the climate change frequently lead to water stress. All these factors can reduce yields production. To solve such issues, Hydro Fert conceived Hydroalga, a growth promoter allowing good-quality yields even under water and saline stress conditions. This product increases the efficiency of fertilization and irrigation, since a bigger root volume can more easily absorb water...

Lettucein greenhouse MATERIALS AND METHODS Species Lactuga sativa var. Romana Experimental design Factorial at fully randomized blocks Substratum 93,3% sandy / 3,2% clay / loamy 3,5% Method of administration Fertigation Compared treatments 2 biostimulant treatments Control and Hydroalga (5 l/ha) x 3 salinity levels S1 S2 S3 = 0,48 dS/cm, 3 dS/cm, 5 dS/cm x 3 water stress levels I1 I2 I3 = no stress / medium stress / high stress Number of applications 2: 15/10/2020 (pre-transplanting) e 5/11/2020 (post-trapianting) FIG 1 - Average vigour of plants after 23 and 48 days from transplanting, in two...

VEGETATIVE PART IMG 1 - Lettuce plants in two compared treatments. FIG 2 - Average SPAD values after 36 days from transplanting, in two compared treatments. Hydroalga increases the SPAD value compared to the untreated control, thanks to its content of brown seaweeds, enhancing the photosynthetic capacity and therefore the plant's phytosanitary status.

FRESH WEIGHT 0 117,13 137,46 g FIG 3 - Average fresh weight after 36 days from transplanting, in two compared treatments. Hydroalga increases the fresh weight by stimulating plants growth with an augmentation of plant biomass and of GSP. ROOTS FRESH WEIGHT 0 5 10 15 20 25 30 23,31 28,53 g FIG 4 - Fresh weight of roots after 62 days from transplanting, in two compared treatments. 05

ROOTS VOLUME 0 0,5 1 1,5 2 2,5 3 3,5 4 3,64 3,78 n FIG 5 - Volume of roots 1 to 5 values, after 62 days from transplanting, in two compared treatments. Hydroalga increases fresh weight and volume of roots thanks to its content of seaweeds, which stimulates rooting with a deeper soil exploration. As a result, we get a better plant growth and a stronger resistance aganist biotic and abiotic stress. IMG 2 - Roots of lettuce plants in two compared treatments.

FIG 6 - Average vigour after 27 days from transplanting, in two compared treatments under conditions of high electrical conductivity (5 ds/m) and water stress. Hydroalga increases the plants vigour also under water and saline stress conditions. More vigorous plants better overcome biotic and abiotic stress. DRY MATTER FIG 7 - Average dry matter after 62 days from transplanting, in two compared treatments under conditions of high electrical conductivity (5 ds/m) and water stress. Hydroalga increases the percentage of dry matter compared to the untreated control, both under water and saline stress...

S3 I3 S3 I3 FIG 8 - Average SPAD values after 40 days from transplanting, in two compared treatments under conditions of high electrical conductivity (5 ds/m) and water stress.

Foliar application Fertigation Allowed in organic agriculture