1st International Erciyes Agriculture, Animal and Food Sciences Conference, Kayseri, Turkey, 24 - 26 April 2019, vol.1, no.1, pp.120-125
EFFECTS OF VARIOUS FERTILIZERS AND DIFFERENT NITROGEN DOSES ON PUMPKIN SEED (Cucurbita pepo L.)
İhsan Serkan Varol1, Ali Ünlükara1*, Adem Güneş2
1 Erciyes University, Seyrani Agricultural Faculty, Biosystem Engineering Department, Kayseri/Turkey.
2 Erciyes University, Seyrani Agricultural Faculty, Plant Nutrition and Soil Science Department, Kayseri/Turkey.
This study was conducted over the experimental fields of Erciyes University in 2017 and 2018 to investigate the effects of various fertilizers and different nitrogen doses on pumpkin seed. In the study, 3 different fertilizer types, including compost fertilizer + mineral fertilizer (K + M), organo-mineral fertilizer (OM) and mineral fertilizer (M), and under these fertilizer applications 90, 120 and 140 kg.ha-1 nitrogen doses ( N90, N120 and N140 kg.ha-1) were tested. Experiments were conducted in randomized blocks design with 3 replications and Develi population was used as material. The average fruit weight and fruit yield were significantly influenced by the fertilizer type. The effects of different fertilizer types on average fruit weight and fruit yield were found to be significant. Fruit yield of 37.31, 36.44 and 32.68 t / ha were obtained from K + M, OM and M, respectively. Number of fruits per plant, seed yield and 1000 grain weight were significantly affected by neither fertilizer type nor nitrogen doses. A two-year average, K + M, OM and M issues respectively 724, 796 and 699 kg.ha-1 and N90, N120 and N140 issues respectively 764, 707 and 748 kg.ha-1 seed yield was obtained. The mean weight of 1000 grains was 223 g. Although organic fertilization has positive effects on pumpkin fruit, this effect has not been observed on pumpkin seeds. 90-100 kg.ha-1 nitrogen dose is sufficient for the pumpkin seed.
Keywords: Pumpkin seed, fertilizer type, nitrogen doses