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http://dx.doi.org/10.7740/kjcs.2013.58.3.220

Comparison of Water, Nitrogen Uptake and Use Efficiency Treated with Silica and N Application Forms  

Choi, Kyung-Jin (National Institute of Crop Science, RDA)
Lee, Jung-Il (Foundation of Agri. Tech. Commercialization Transfer)
Chung, Nam-Jin (Chonbuk National University)
Yang, Won-Ha (National Institute of Crop Science, RDA)
Lee, Chung-Keun (National Institute of Crop Science, RDA)
Oh, Se-Kwan (National Institute of Crop Science, RDA)
Kim, Je-Kyu (Chonnam National University)
Publication Information
KOREAN JOURNAL OF CROP SCIENCE / v.58, no.3, 2013 , pp. 220-225 More about this Journal
Abstract
This experiment was carried out to elucidate the effects of silicate and different application forms of N on the uptake of water and N by rice plants. Three rice cultivars, Ilpum, Anda and M202, were grown under the hydroponics in a phytotron. One-hundred ppm silica was applied for silicate treatment. For nitrogen application forms were 100% $NH_4$ and $NH_4+NO_3$ in 2:1 ratio were applied. Silica treatment, compared to silica free, was very effective on the nitrogen uptake and dry weight increase of rice plants. Although silica application demonstrated no significant effect on the amount of water uptake, it improved increased water and nitrogen use efficiency. Therefore, sufficient application of silicate in paddy field will be useful for the growth of rice plants and water saving.
Keywords
rice; hydroponics; silica; ammonium; nitrate; water uptake; n uptake; use efficiency;
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Times Cited By KSCI : 8  (Citation Analysis)
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