The effect of vermicompost and isopod fertilizer application on plant growth and nutrient content in spinach

The research was carried out to determine the effect of the applications of spinach (Matador), vermicompost and Karaizopot organic fertilizers on the plant growth and nutrient contents in the non-heated plastic greenhouses and laboratories of Namık Kemal University Faculty of Agriculture Department of Horticulture. The trial was conducted with one variety, 10 parameters (Garden Soil, 1% Vermicompost: Garden Soil, 5% Vermicompost: Garden Soil, 10% Vermicompost: Garden Soil, 20% Vermicompost: Garden Soil, 1% Isopod fertilizer: Garden Soil, 5% Isopod fertilizer: Garden Soil, 10% Isopod fertilizer: Garden Soil, 20% Isopod fertilizer: Garden Soil) and 3 replicates were established based on the randomized block design. In total 30 sub-parcels, 300 plants from 10 plants were used. In the study were made; plant morphological [plant height (cm), plant fresh weight (g), plant dry weight (g), number of leaves (pieces), leaf thickness (mm), leaf width (cm), leaf length (cm), leaf area (cm2), leaf weight (g), stem diameter (mm), total plant weight (g), root length (cm), root fresh weight (g), root dry weight (g)], 1 physiological [chlorophyll (SPAD),] 13 chemicals [vitamin C (mg/100 g), phenolic (mg/100 g), N (%), NO3 (ppm), Na (ppm), K (ppm), Mg (ppm), Ca (ppm), P (ppm), Mn (ppm), Zn (ppm), Cu (ppm), Fe (ppm)] some in after and before using structural and chemical analyzes of the growing media. As a result of the measurements minimum-highest values; in the application of 20% Vermicompost-1% Isopod fertilizer in the morphological characteristics, the chlorophyll content (SPAD) in the physiological properties of the garden soil (11,80-72,33) and 20% Vermicompost, the chemical properties of vitamin C (mg/100 g) and total phenolic compounds (mg/100 g); % 5 Isopod fertilizer (47,33-149,30) and 20% Vermicompost (mg/100 g) application, N (%); Garden Soil (0,41-1,21) and % 1 Isopod fertilizer, P (ppm); %5 Ki and 1% Ki (1739,20-6846,0 ppm), Mg (ppm); %5 Isopod fertilizer and %1 Isopod fertilizer (514,67-2043,33), K (ppm); %10 Isopod fertilizer and %10 Vermicompost (2033,23-7213,68), Fe (ppm); %5 Ki and %20 Ki (131,67-684,0 ppm). There are not enough studies on the use of isopod fertilizer in cultivation. This study conducted in spinach, it is seen that isopod fertilizer can be used as an alternative to other organic fertilizers.