Effects of nitrogen, phosphorus and potassium on yield and yield components of cumin
2014
Mojaba Nourihosseini , S | Gholami, B | Furohar, M | Zabihi, H | Faravani, M | Khosravi, H | Beygi, H
An experiment was conducted to Investigating effect of different rates of nitrogen, phosphorus and potash on yield and yield components of cumin (Bunium persicum L.). The experiment was on base of randomized complete block design with three replications in 1387 for 5 years in Torogh agriculture and natural resources research station. Treatments were 4 nitrogen levels as(0,40,80and120 kgN/ha), two phosphorus levels as (0 and 30 kg p2o5/ha) and three potassium levels as(0, 40 and 80 kg k2o/ha).Results showed nitrogen application decreased grain yield and yield components, but increased straw yield. The main effect of phosphorus on grain yield , straw yield , plant height and number of umbels per plant was significant . The main effect of potassium on grain yield, straw yield and number of umbels per plant, was significant . Interaction of nitrogen and phosphorus on grain yield , straw yield , number of umbels per plant was significant. Interaction of nitrogen and potassium on grain yield, straw yield, number of umbels per plant , was significant. Interaction of potassium and phosphorus in grain yield , straw yield , number of umbels per plant and plant height were significant. Interaction effects of nitrogen , potassium and application on the grain and straw yield was significant.Under conditions of this experiment Cumin grow with minimum application of nitrogen at desirable level, while respond prope application of potassium and phosphorus. Keywords : cumin mountain, nitrogen , phosphorus ,potash, yeild
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