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Growth Response of Hot Pepper Applicated with Ammonium (${NH_4}^+$) and Potassium ($K^+$)-Loaded Zeolite  

Li, Jun-Xi (Department of Bio-Environmental Science, Sunchon National University)
Wee, Chi-Do (Department of Bio-Environmental Science, Sunchon National University)
Sohn, Bo-Kyoon (Department of Bio-Environmental Science, Sunchon National University)
Publication Information
Korean Journal of Soil Science and Fertilizer / v.43, no.5, 2010 , pp. 741-747 More about this Journal
Abstract
The feasibility of using ammonium (${NH_4}^+$) and potassium ($K^+$)-loaded zeolite (NK-Z) as a slow-release fertilizer to control nitrogen and potassium supply was investigated in this study. The growth responses, which were determined in terms of shoot length, shoot fresh weight, and fresh fruit weight, were greater in plants treated with NK-Z than in those treated with chemical fertilizers (CF) after 18 weeks of transplantation. The total fruit weight per plant in treated with NK-Z as the basal and additional fertilizer (ZBAF) was 14.89% higher than that of CF. The nitrogen and potassium contents in NK-Z amended soils were higher than those in CF amended soils in the final stage of plant growth. The ammonium nitrogen ($NH_4$-N) concentration in ZBAF amended soils was 63.41% higher than that in CF amended soils.
Keywords
Natural zeolite; Slow-release fertilizer; Hot pepper; Growth response;
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