The effect of nitrogen on yield and yield components of soybean in the city of Mahmoud Abad

Subject Areas :

Mehran  Mahmoodi ¹ (Department of Agronomy Islamic Azad University, Ayatollah Amoli, Amol, Iran)
Vatan  Zakipor ² (Department of Agronomy Islamic Azad University, Ayatollah Amoli, Amol, Iran)

Received: 2016-01-23 Accepted : 2016-05-09 Published : 2016-05-21

Keywords: Grain yield, nitrogen, Quality, soybean, Variety,

Abstract :

To evaluate the effect of nitrogen fertilizer on yield and yield components Mahmoud Abad city Jk and 033 in a factorial experiment in a randomized complete block design with three replications. Experimental factors figure in two levels (033 JK of maturity groups ш), nitrogen fertilizer at four levels (zero, 50, 100 and 150 kg N ha). The results showed that with increasing nitrogen application on grain yield increased so that application of 150 kg nitrogen per hectare compared to control treatments (no urea), increased grain yield. Among yield components, number of pods per plant and seed weight percent level of statistical probability of a five percent statistical probability levels showed a positive correlation with grain yield. In connection with the biochemical characteristics of grain, the JK highest oil content showed that with increasing nitrogen application on grain yield and oil extraction increased and leads to more protein per unit area. The results showed that G-K with the application of 150 (kg ha) N with a yield (3240 kg) maximum performance compared to no fertilizer, respectively. The results also showed that interaction of genotype and nitrogen in the oil yield of 150 kg of nitrogen JK (562 kg) compared with no fertilizer (400 kg) and 033 with the application of 150 kg nitrogen (548 kg compared with no fertilizer (341 kg), respectively. the results showed that grain yield was significantly affected by cultivar, nitrogen was used. so that the JK highest yield higher than 033 indicate so in the city Mahmud cultivation of JK Recommendation is.