In this study, a pot study was carried out to reveal the effects of direct and foliar applications of humic acid to the growing medium in addition to basic fertilization on the development and plant quality characteristics of lily plants grown in peat + perlite medium. The experiment was carried out in an unheated greenhouse during the summer, in a greenhouse environment with a shade net on it. In the experiment, in addition to the control, the humic acid doses were 3.5 lt/da from soil, 7.5 lt/da from soil, 1.75 lt/da from leaf, 3.75 lt/da from leaf and soil + 3.5 lt/da from leaf + 1, It was applied 3 times as 75 lt/da. In the pot experiment established in three replications according to the randomized plots trial design, 10 lily bulbs were planted in each pot and humic acid applications were made at two-week intervals following plant emergence. In order to see the effect of the applications when the plant is harvested, the length of the flower stem (mm), the thickness of the flower stem (mm), the fresh weight of the branch (mm), the number of buds (pieces), the bud length (cm), the number of leaves (pieces), Full bloom stem (mm) and vase life (days) were examined. As the doses of humic acid increased, the vegetative weight of the lily plant increased, while the effect of the applications on the investigated properties was different. With the mineral elements, hormones and plant growth regulators in humic acid, it has the feature of promoting the increase of biomass in the plant.

Sürdürülebilir topraksız tarım için çevre dostu ve yenilenebilir materyallerin önemi her geçen gün artmaktadır. Yeşil ve organik atıklardan elde edilen kompost bu materyallerden biridir. Bu çalışmada elma, üzüm ve domates posalarından elde edilen kompostun topraksız domates yetiştiriciliğinde etkileri araştırılmıştır. Elma, üzüm ve domates atıkları meyve suyu ve salça fabrikalarından temin edilmiştir. Elma, üzüm ve domates atıkları ayrı ayrı kompostlaştırılmıştır. Kompost yapımında ana materyale (2m3) 200 dm3 ahır gübresi, 5 kg kireç ve 5 kg üre ilave edilmiştir. Kompost yapımı 22 hafta sürmüştür. Denemede 9 farklı ortam kullanılmış olup, bunlar; kokopit: perlit (2:1) (Kontrol); domates kompostu: perlit (2:1) (D); elma kompostu: perlit (2:1) (E); üzüm kompostu:perlit (2:1) (Ü);  domates: elma: üzüm kompostu: perlit (1:1:1:1) (DEÜ); domates kompostu: kokopit: perlit (1:1:1) (DC); elma kompostu: kokopit: perlit (1:1:1) (EC); üzüm kompostu: kokopit: perlit (1:1:1) (ÜC) ve DEÜ kompostu: kokopit: perlit (1:1:1) (DEÜC). Ortamlar hacim esasına göre belirlenmiştir. Besin solüsyonu çiçeklenmeye kadar 2,0 dS/m ve çiçeklenmeden sonra 2,2 dS/m, pH:5,9 şeklinde uygulanmıştır. En yüksek pazarlanabilir verim elma, domates ve üzüm kompostu + kokopit uygulamasında 286,59 ton/ha olmuştur. Kompost kullanılması pazarlanabilir verimde kontrole göre %39,73 artış sağlanmıştır. Vitamin C kontrolde en yüksek çıkarken, pH ve suda çözünebilir kuru madde miktarı değişmemiştir. Kompost kullanılması domates meyvelerinde çiçek burnu çürüklüğünü azaltmış, yaprak kuru ağırlığını artırmıştır. Sonuç olarak, denemede üzüm ve özellikle elma posasından elde edilen kompostun topraksız tarımda domates yetiştiriciliğinde başarıyla kullanılabildiği ve ticari ortamlardan biri olan kokpite göre daha etkili olduğu anlaşılmıştır.

This study was conducted in styrofoam trays placed on an aerated nutrient solution in vats in order to determine the effect of different nutrient solutions on rocket plant growth, yield and quality. Seeds of Bengi F1 rocket cultivar were sown into peat as inserting each seed to each hole (17 ccs) of trays with 210 cells (957 plant m-2). Following germination in the germination chamber, seedling trays were moved to a climate controlled greenhouse for adaptation. After emergence, the seedlings were transferred to water culture. The nutrient solution was applied as “full dose” (mg/L: N 150, P 50, K 150, Ca 150, Mg 50, Fe 5.0, Mn 0.50, Zn 0.05, B 0.50, Cu 0.03, Mo 0.02), “half dose” (macro elements reduced by 50%) and “without nutrients” (water). Cultivation was performed in 2 consecutive periods and in each period 3 harvests were done and quality analysis was done on the leaves from the first harvest. Results were given as the mean of two periods. Results showed that plant growth, yield and quality parameters vary depending on the concentration of the nutrient solution. It was observed that as the concentration of nutrient solution decreased, plant growth, biomass, yield values decreased, leaf color and total chlorophyll concentration did not change and while nitrate content decreased, vitamin C content increased. Leaf N, P, K and Fe element contents decreased with half dose, whereas Ca and Mg content did not change. However, there was no statistical difference between full dose and half dose treatments in many measured parameters. When all the data obtained from the study are evaluated together; it is suggested that rocket can be grown in a floating water culture and the dose of macro elements as reduced 50% can be preferred because it reduces the nitrate content, increases the vitamin C content and allows the use of less fertilizers without causing any significant reduction in yield compared with full dose.