Research Project code：9910000711
Update date：Nov. 28, 2003
Development of biological cultivation technology for vegetables of open field culture
1998 - 2002
Organic fertilizer of rapid mineralization such as fish refuse, etc. can be substituted for chemical at 100% for nitrogen applied to carrot and radish, and at 50% with cabbage, Chinese cabbage and broccoli. Furthermore, even with cabbage and Chinese cabbage, 100% substitution can be achieved through utilization of 'multi' (=vinyl chloride or polyethylene sheet used for covering the surface of soil).
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