Effects of Applied of Organic-Compound Fertilizer on the Weed Control and Rice Growth Condition in the Transplanting Rice Cultivation

• Published in: Korean Journal of Weed Science Vol. 30; no. 3
• Main Authors: An, Xue-Hua, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, China, Zhao, Xue-Ping, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, China, Lee, S.B., National Institute of Crop Science, RDA, Iksan, Republic of Korea, Im, I.B., National Institute of Crop Science, RDA, Iksan, Republic of Korea, An, Wen-Hao, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, China
• Format: Journal Article
• Language: Korean
• Published: 01.09.2010
• Subjects: DESHERBAGE; ESCARDA; organic-compound fertilizer; rice growth; WEED CONTROL
• ISSN: 0253-7468

The effects of organic-coumpound fertilizer on weed control and rice growth in the transplanting rice cultivation were researched in this article. The results showed that the growth of transplanted rice was promoted (the increased rate was 10.3~27.2%), but the plant number for Echinochloa crus-galli was controlled (the inhibition rate was 50.3~89.2%), besides, small amount of organic-compound fertilizer in controlling Aneilema keisak was highly effective when the transplanted rice was treated with 125~250 kg 10a-¹ organic-compound fertilizer. Moreover, E. crus-galli, Monochoria vaginalis and A. keisak were inhibited largely by increasing the water depth (1~5 cm), whereas Eleocharis kuroguwai and other sedges weeds were not effected by water depth. Compared with the temperature of 20~35℃, the plant occurrence of E. crus-galli and M. vaginalis at high temperature was inhibited (the inhibition rate were 75.4~92.2% and 49.5%~81.6%, respectively). When the transplanted rice was treated with the above organic-compound fertilizer after 10day, the inhibition rate of plant occurrence for E. crus-galli and M. vaginalis was 33.7% and 23.3%. respectively. Similarly, in the later period of rice growth, the plant height and the numbers of tiller grew slowly in conventional soil in comparison with the soil treated with organic-compound fertilizer. It has been found that the rice yield in experimental soil was decreased by 4%. This result in the field experiment showed that organic material contents in conventional soil were lower than that in soil which used the organic-compound fertilizer. Weed control in experimental soil showed 60.5% lower effects than that in conventional soil.