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The study was conducted as open field trial, with irrigation, with the Clery strawberry variety. The aim of the study was to investigate the effect of foliar application on berry and seaweed extract on the yield and quality of strawberry fruit (sugar, acid and anthocyanin content). The experiment was set up by random block system in 4 repetitions. The following treatments were applied to the strawberry crop: 1. control, 2. conventional NPK fertilization (10-52-10), 3. 30% reduced conventional NPK fertilization, 4. 30% reduced conventional fertilization + biostimulants. Due to arid growing conditions, NPK fertilizer was applied foliarly. Statistical analysis of the data showed significant differences between treatments in strawberry yield, and anthocyanins content. Compared to the control, the biostimulator had an effect on strawberry yield and total anthocyanin content, but not on the total soluble sugar and acid content of strawberry fruit., Istraživanje je provedeno u poljskim uvjetima, uz navodnjavanje, sa sortom jagode Clery. Cilj istraživanja bio je ispitati utjecaj folijarne primjene biostimulatora na bazi ekstrakta bobica i morskih algi na prinos i kvalitetu ploda jagode (sadržaj šećera, kiselina i antocijana). Pokus je postavljen po slučajnom blok sustavu u 4 ponavljanja. Na usjevu jagoda primijenjeni su tretmani: 1. kontrola, 2. konvencionalna gnojidba NPK (10-52-10), 3. 30% reducirana konvencionalna gnojidba NPK, 4. 30% reducirana konvencionalna gnojidba + biostimulator. Zbog sušnih uvjeta uzgoja NPK gnojivo primijenjeno je folijarno. Statističkom analizom podataka dobivene su značajne razlike između tretmana u prinosu ploda jagode i sadržaju ukupnih antocijanina. U usporedbi s kontrolom biostimulator imao je utjecaj na prinos jagode i sadržaj ukupnih antocijanina, ali ne na sadržaj šećera i kiselina u plodu jagode.

Salata (Lactuca sativa L.) je jednogodišnja zeljasta biljka, rasprostranjena vrsta lisnatog povrća iz porodice glavočika (lat. Asteraceae).Cilj istraživanja bio je analizirati utjecaj biološkog preparata Maska (kukuruzno brašno obogaćeno maceratom povrća) na adaptaciju presadnica salate u uzgoj na otvorenom. Također, cilj istraživanja bio je i proučiti zajednicu nematoda na tretiranim i netretiranim površinama preparatom Maska. Glavice salate imale su različite mase po tretmanima gdje se pokazalo da je primjena preparata Maske utjecala na prinos. Najveća prosječna masa glavice od 1500 g zabilježena je na tretmanu IV. Tretman III (tlo tretirano preparatom Maska, biljke u kontroli) najbolje djelovao na brojnost nematoda u tlu. Upotreba preparata skupine poboljšivača, gdje pripada i Maska pozitivno utječe na povećanje bioraznolikosti u tlu, ali je potrebno provesti daljnja istraživanja o utjecaju poboljšivača Maska na svojstva tla i biljke., Lettuce (Lactuca sativa L.) is an annual herbaceous plant, a widespread species of leafy vegetables from the glaucoma family (Lat. Asteraceae). The aim of the study was to analyze the influence of the biological preparation Mask (corn flour enriched with macerate vegetables) on the adaptation of lettuce seedlings to outdoor cultivation. Furthermore, the aim of the study was to study the community of nematodes on treated and untreated soil with Mask.Lettuce heads had different masses where the use of Mask preparation was shown possitive affect to the yield. The highest average head mass of 1500 g was recorded on treatment IV. Treatment III (soil treated with Mask, plants in control) had the best effect on the number of nematodes in the soil. The use of biopreparations or conditioners, where the Mask belongs, has a positive effect on increasing soil biodiversity, but further research is needed.

Šećerna repa industrijska je biljka kontinentalnih podneblja koja predstavlja osnovnu sirovinu u proizvodnji šećera. Repa se u Republici Hrvatskoj uzgaja na malim površinama, ako ju usporedimo s ostatkom Europe. Potrebni agroekološki uvjeti kao i pravilna agrotehnika ključ su uspjeha u proizvodnji šećerne repe. Suša kao najvažniji ograničavajući čimbenik šećerne repe dovodi do smanjenja sadržaja šećera i smanjena prinosa. Zadaća navodnjavanja je da biljci kompenzira tekućinu koju biljka upija kroz korijen i lišće,a gubi isparavanjem tla i cijeđenjem tla. Najbolje navodnjavanje bilo bi ono koje oponaša prirodnu pojavu (kišu), a najkvalitetnija voda za navodnjavanje je kišnica. Kvalitetu vode određuju biološke, fizikalne i kemijske značajke. Navodnjavanje kišenjem ima prednost ispred ostalih metoda navodnjavanja., Sugar beet is an industrial plant of continental climate that represents the main, raw material, of sugar production. In Republic of Croatia, the beet grows on small sufraces, if we compare it to the rest of the Europe. Necessary agroecological condition, just as correct agrotechnich, are the keys of success in the sugar beet production. Drain, as the main limited factor of sugar beet, is leading to reduced level of sugar and reduced yield. The main reason of irrigation is to give the plant necessary water which plant absorbe trought the root and leafs, and losing water with evaporation and soil draining. The best kind of irrigation is the one that works like a natural cause (rain), because the most valuable kind of water for soil is the rain. The quality of water depends on biological,fizical, and cemical features. Rain irrigation has the adventage in front of the other methods of irrigation