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http://dx.doi.org/10.7740/kjcs.2018.63.1.064

The Growth and Yield Differences in Kenaf (Hibiscus cannabinus L.) in Reclaimed Land Based on the Physical Types of Organic Materials  

Kang, Chan Ho (Jeonllabukdo Agricultural Research & Extension Services Iksan)
Lee, In Sok (Jeonllabukdo Agricultural Research & Extension Services Iksan)
Go, Do Young (Jeonllabukdo Agricultural Research & Extension Services Iksan)
Kim, Hyo Jin (Jeonllabukdo Agricultural Research & Extension Services Iksan)
Na, Young Eun (Jeonllabukdo Agricultural Research & Extension Services Iksan)
Publication Information
KOREAN JOURNAL OF CROP SCIENCE / v.63, no.1, 2018 , pp. 64-71 More about this Journal
Abstract
To improve the soil of reclaimed land, we added organic materials at a level of 3,000 kg/10 a. As a result, the electrical conductivity (EC) value of reclaimed soil decreased by 58%, the organic material content increased from 6.7 to 16.0 g/kg, the porosity increased from 1.57 to 1.31%, the soil hardness decreased from 20.2 to 17.9 mm and the plow layer was deepened from 19.8 to 26.8 cm. After these physiochemical improvements to the reclaimed soil, the growth phase of crops was improved compared to that of non-treatment crops. The height of kenaf (Hibiscus cannabinus L.) cultivated in the reclaimed land containing organic materials was increased by 18.8%. Especially, the improvement effects of pellet type manure compost and rice straw on kenaf were more preferable than those of other organic materials. When the kenaf was cultivated in the reclaimed land containing organic materials, the yield increased. The average yield of the treatment crops was 9,218 kg/10 a, 2.1 times higher than that of non-treatment crops. The most effective treatments to increase the yields were pellet type manure compost (10,848 kg/10 a, 148% increase), rice straw (120% increase) and chopped kenaf (95% increase). To increase the physicochemical enhancements to the reclaimed land soil and most improve yields, the most effective type of organic materials was the pellet. The organic material types that maintained a better growth phase and most increased the yield were the liquid and pellet types. When we used pellet type organic material, the plant height of kenaf was increased by 41% in comparison with that of the non-treatment crops and yield was increased by more than 122%. Additionally liquid type organic material improved the yield (by 127%).
Keywords
Kenaf (Hibiscus cannabinus L.); organic material; pellet type manure compost; reclaimed land;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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