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Showing 2 results for Nobahar
Marefat Mostafavi Rad, Amin Nobahar, Mehran Gholami, Ali Ajili Lahigy, Iraj Boniadi, Shayegan Adibi, Mohammad Reza Rahimian, Ebrahim Akbarzadeh, Volume 2, Issue 2 (Journal of Oil Plants Production 2016)
Abstract
In order to evaluate the land equivalent ratio based on forage yield, oil content and some elements of peanut (Arachis hypogaea L.) grain in intercropping with corn (Zea mays L.), an experiment was carried out during 2013 and 2014 cropping seasons based on a randomized complete block design with three replications in the experimental field of Agricultural and Natural Resources Research and Education Center in Guilan province, Rasht, Iran. Sole cropping of corn and peanut, corn and peanut intercropping patterns with the ratio of 1:1, 2:1, 1:2 and 2:2 planting rows comprised the experimental treatments. The highest corn forage yield was obtained in corn-peanut intercropping pattern with the ratio of 2:1 planting rows. In this research, corn-peanut intercropping pattern with the ratio of 1:2 planting rows had superiority for forage yield, grain yield, oil and protein yield of peanut grain to other corn-peanut intercropping patterns. The lowest forage and grain yield of peanut was shown in corn-peanut intercropping pattern with the ratio of 2:2 planting rows. Results showed that forage and protein yield related to grain yield of peanut. There was a positive and significant correlation between oil and protein yield with grain yield of peanut. But, inversely relationship was shown between nitrogen and phosphorus content in peanut grain. Based on the results of this experiment, corn-peanut intercropping patterns with the ratio of 1:2 and 1:1 planting rows could be recommendable for peanut, grain yield and land equivalent ratio enhancement under climatic condition of the region, respectively.
Marefat Mostafavi Rad, Amin Nobahar, Mehran Gholami, Ali Ajili Lahigy, Iraj Boniadi, Shayegan Adibi, Mohammad Reza Rahimian, Ebrahim Akbarzadeh, Volume 2, Issue 2 (Journal of Oil Plants Production 2016)
Abstract
In order to evaluate the quantitative and qualitative yield of peanut (Arachis hypogaea L.) in response to starter nitrogen rates two separate experiments were performed in 2013 and 2014 cropping season as randomized complete block design with three replications, in experimental field of Agricultural and Natural Resources Research and Education Center of Guilan Province, Rasht, Iran. Four rates of nitrogen including of zero, 100, 150 and 200 kg/ha comprised the experimental treatment. The results of this research showed that with increment of starter nitrogen application, duration of developmental stages in peanut enhanced. The greatest pod (3561 kg/ha) and seed yield (1740 kg/ha) of peanut, grain oil (49.86 percent) and nitrogen content (3.91 percent), oil yield (867 kg/ha) and protein yield (426.5 kg/ha) were obtained at 100 kg N/ha level. Application of 150 kg N/ha showed superiority for pod number per plant (21.30) and grain number per pod (1.39). Also, application of 200 kg N/ha caused to enhance plant height (73.35 cm) and grain phosphorus content (0.437 ppm) in peanut. In addition, there was negative and significant correlation between grain yield and some traits such as day number to initial flowering, day number to the end of flowering and maturity. The correlation coefficient between grain yield and oil (r= 0.99**) and protein yield (r= 0.89**) was positive and significant. In this experiment, oil and protein yield of peanut per unit area mostly related to grain yield. In general, results showed that the application of starter nitrogen up to 100 kg/ha enhanced pod and grain yield of peanut and oil and protein yield in Guilan province climatic condition.
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