Establishment of techniques for decreasing injury to mat rush [Juncus effusus, Juncaceae] due to continuous cropping, 2: Effects of deep plowing and barnyard manure application on mat rush and rice cropping system
1999
Fujitomi, S. (Fukuoka-ken. Agricultural Research Center, Chikushino (Japan)) | Uchimura, Y. | Kitahara, I. | Sumiyoshi, T.
In the mat rush and rice continuous cropping system, we investigated the effects of deep plowing and barnyard manure application on the yield and the quality of mat rush. In the first year of the deep plowing treatment, soil fertility deteriorated from the subsoilbeing mixed with the top soil in this treatment, and resulted in poor growth and yield decrease of mat rush. When 2 tons per 10a of barnyard manure were applied, the number of partially discolored stems of mat rush decreased. In the second year of the deep plowing treatment, when the manure was applied again, soil fertility recovered. Particularly, when 2 tons per 10a of manure were applied, the yield increased, and the number of partially discolored stems could be reduced by the appropriate early growth and the promoted latter growth of mat rush
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