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Effect of planting bed and foliar application of supplementary organic matter (Humi-ferthi) on mini-tuber production from micro-tubers in two potato cultivars
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Ali Najafi   |
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Abstract: (4681 Views) |
| To study the effect of different planting beds and amount of Humi-ferthi as supplementary organic fertilizer on quantitative and qualitative traits of min-ituber of two potato cultivars, an experiment was carried out under greenhouse conditions in Ardabil, Iran, in 2012. A 2×3×3 factorial experiment was conducted using completely randomized design with three replications. Experimental factors included two potato cultivars (Agria and Savalan), three planting beds (forest leaf composts of Fandoglo of Ardabil+ perlite, forest leaf composts of Andabil of Khalkhal + perlite, and Mixkaar peat mass + perlite) as second factor and three levels of organic fertilizer of Humi-ferthi consisted zero (control), 2‰ and 4‰. Results showed that cultivar effect was significant on mini- tuber weight per plant and plot and concentrations of P, K and Ca nutrients in min-ituber tissue. Effect of organic fertilizer on concentrations of P, K, N and Ca nutrients on mini-tuber tissue was also significant. Cultivars × planting bed interaction effect on mini-tuber number per plant and mini-tuber weight per plot as well as the cultivars × organic fertilizer interaction effect on mini-tuber weight per plot were significant. Mini-tuber weight per plant and plot and concentrations of P, N and Ca nutrients in mini-tuber tissue were significantly influenced by planting bed and organic fertilizer interaction. The highest number of mini-tubers per plant (7.8 mimi-tubers) was obtained from Agria cultivar in Mixkaar peat mass + perlite. Andabil forest leaf composts with 2‰ of organic fertilizer (Humi-ferthi) had the highest mini-tuber weight per plant (223.7 g). The highest nitrogen, phosphorus and potassium contenets of mini-tuber were obtained in combination of 2‰ Humi-ferthi + Fandoglo leaf composts. Considering the importance of number of mini-tuber in mini-tubers production stsytem, it is concluded that planting micro-tubers of Agria cultivar in media of leaf composts of Andabil + perlite and application of Hiumi-ferthi (2‰) is suitable and economically reasonable for producing mini tuber. As well as in all of the qualitative characteristics, Miksskar peat mass + perlite were suitable planting bed, which could improve the quality characteristics of both potato cultivars with using 2‰ or 4‰ supplementary organic fertilizer. |
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| Keywords: Micronutrients, Mini-tuber, Organic fertilizer, Planting bed and Potato |
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Full-Text [PDF 385 kb]
(2385 Downloads)
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Type of Study: Scientific & Research |
Subject:
Special
Received: 2015/10/11 | Accepted: 2015/10/11 | Published: 2015/10/11
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