The Influence of Organic Fertilizer Applications on Seed Yield And Some Quality Properties of Soybean Grown As Second Crop

It was aimed to determine the influence of some organic fertilizer applications (leonardite, cattle manure, sheep manure, poultry manure) on second crops soybean’s seed yield and some quality properties with this research. Theresearch was conducted with Arısoy and Nova soybean varieties according to Stripe Plots at Randomized Complete Block design, with 8 replications at 40° 45' 48" latitude, 36° 26' 44" longitude coordinates which has partly continental climate in 2015. According to data’s variance analysis, the effect of fertilizer applications on plant height was found significant (p≤ 0.05), while on first pod height, number of pods and stem per plant, seed yield per plant, weight of 1000 seeds, biological yield, seed yield, crude oil and protein content was found unsignificant. The highest seed yield was taken from poultry manure application (4.659 ton ha-1) for Arısoy variety. The pod number per plant changed between 69.97–78.33 number plant-1. While the highest 1000 seed weight was found for poultry manure application (200 g), the lowest (183.9 g) was obtanined from inorganic ferlitizer application. As a result, it was concluded that poultry manure could be used instead of inorganic manure for high seed yield for second crop soybean cultivation in regions where shows partly continental climate characteristics, but continue similar studies would be beneficial at different locations and at years