eshagh pourkarami; Mahdi Dahmardeh; mohammad galavi; issa khmmari
Abstract
In order to evaluate the effect of intercropping of Roselle (Hibiscus Sabdariffa L.) on the yield and yield components of peanut (Arachis hypogea L.) at different levels of nitrogen fertilizer in the form of split plots experiment in the form of a randomized complete block design with three replications, ...
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In order to evaluate the effect of intercropping of Roselle (Hibiscus Sabdariffa L.) on the yield and yield components of peanut (Arachis hypogea L.) at different levels of nitrogen fertilizer in the form of split plots experiment in the form of a randomized complete block design with three replications, in The research farm of Zabol University was implemented in the crop year of 2013-2014.The experimental treatments include nitrogen fertilizer levels as the main plot (0, 100, 200 and 300 kg.ha-1) and replacement series of intercropping as the sub plot included (pure Roselle, pure peanut, 50% Roselle + 50% peanut, 75% Roselle + 25% peanuts, 75% peanuts + 25% Roselle). Based on the obtained results, different levels of nitrogen and intercropping showed a significant effect on the number of seeds per plant, the number of seeds per seed, the weight of one 1000 seeds, economic yield, biological yield and harvest index. The interaction effect of experimental treatments was significant on economic, biological yield and harvest index. The highest of economic yield of peanuts (5995.33 kg. ha-1) was obtained in sole crop of peanut and consumption of 200 kg. ha-1 nitrogen fertilizer. The results showed that the highest of land equivalent ration was obtained in intercropping of 75% of peanuts plus 25% of Roselle (1.73), which indicated the usefulness of intercropping compared to sole crop planting.
Ali Nakhzari Moghaddam; Mojtaba Salehi Sheikhi; ali Rahemi karizaki; Majid Mohamad Eamaeili
Abstract
In order to investigate the effect of pea cultivars and planting pattern on yield and seed protein of pea, total yield and LER, a factorial experiment (two factors) was conducted in a randomized complete block design with three replications in research farm of Gonbad Kavous University during 2016-2017. ...
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In order to investigate the effect of pea cultivars and planting pattern on yield and seed protein of pea, total yield and LER, a factorial experiment (two factors) was conducted in a randomized complete block design with three replications in research farm of Gonbad Kavous University during 2016-2017. In this experiment, two cultivars of pea (Poffaki (Aspersion) and Shamshiri (Swordfish)) and a native variety of spinach were used. Nine planting pattern i.e. sole pea and spinach, replacement series of 33, 50 and 67% spinach instead of pea and additive series of 33, 50, 67 and 100% spinach to pea. Effect of pea cultivar and planting pattern were significant on most of traits. Plant length, 100-seed weight, pod weight, pod yield per plant, fresh weight of pea plant and pod yield in Poffaki was higher than Shamshiri but number of pod per plant and harvest index in Shamshiri was higher than Poffaki. Number of pod per plant, pod weight, pod yield per plant, 100-seed weight, harvest index, and fresh weight of pea in sole pea and replacement series was higher than additive series. Addition of spinach in additive series reduced traits of pea but total yield increased. According to the results, yield of Poffaki cultivar was 11.81% higher than Shamshiri and the highest total yield with 30.1 ton/ha obtained from additive series of 100% pea + 100% spinach. Land equivalent ratio (LER) was over than 1 in all intercropping treatments that indicates the superiority of intercropping.