Abstract

Effect of bio-fertilizers on the yield and yield components of Cucurbita pepo L.

Author(s): Mohammad Bagher Aleyzadeh, Khadijeh Babaei, Roghiyeh Aghaee Okhchelar, Alireza Pirzad

In order to evaluate the influence of bio-fertilizers on the yield, yield components, oil percentage and protein of Pumpkin medicinal plant, an experimentwas conducted at the Research FarmofAgriculture and Natural Resources Research Center of West Azarbaijan based on randomized complete block design with 4 replications in 2008. Treatments were biological phosphorus (Bacillus lentus P5 and Pseudomonas putida P13)+chemical phosphorus, biological nitrogen (Azospirillum), Thiobacillus, NPK, Livestock Manure, Livestock Manure+ biological phosphorus (Bacillus lentusP5 and Pseudomonas putidaP13), Livestock Manure+biological nitrogen, LivestockManure+Thiobacillus, Livestock Manure+biological nitrogen+biological phosphorus, Livestock Manure+Thiobacillus+biological phosphorus, Livestock Manure+biological nitrogen+Thiobacillus, and Livestock Manure+Thiobacillus+biological nitrogen+ biological phosphorus. The highest oil percent (61%) and oil yield (2634 kg/ha) were obtained from fertilizer treatment 13. The highest yield of protein (1976 kg/ha) belonged to the treatment 13 as well as the lowest yield of protein (375 kg/ha) was obtained fromtreatment 4 (control).According to the results of this study fertilizer treatment 13 (30 tons/ha of Livestock Manure+ 100 g/ha phosphate barvar 2 + 1 liter/haNitroxin fertilizer + 1.5 kg/ha Thiobacillus) is recommended for increase yield quality and quantity of cucurbit.


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