High Quality Komatsuna (Brassica rapa L. nothovar) Production by Using Silicate Minerals Treated Nutrient Solution| Science Publications

American Journal of Agricultural and Biological Sciences

Sheheli Islam¹  Katsumi Ishikawa¹  Kumagai Kazunori¹  Noriko Takeda¹ 

关键词: Komatsuna;    nutrient solution;    nutrient film technique;    silicate minerals;   

DOI  :  10.3844/ajabssp.2009.12.17

学科分类：农业科学（综合）

来源: Science Publications

【 摘 要 】

Problem statement: Good water quality not only produces good crop yield, but alsomaintains environmental quality and so with plant, animal and human health. Therefore, protecting thequality of water by using non chemical materials is an emerging issue to be solved. Bakuhan sekihaving additional negative charge were found to have the capacity of improving condition of waterwhile emitting important minerals essential to life. Because of high cost and scarcity of Bakuhan-seki,experiments continued to find out low cost materials. In this study, a very timely and relevant and costefficientprocedure has been described for determining the potential of three minerals of ShikokuIsland to improve water quality affecting growth of plants. Approach: Firstly, tap water of Kochi,Japan was treated with different mixtures of silicate minerals and then applied for the germination ofKomatsuna (Brassica rapa L. nothovar) seeds. The feasibility of these treatments was investigated bymeasuring root and shoot length of early seedlings. Results: Treatment with Q4S1 showed the highestelongation of seedling parameters compared to other treatments. Where as results of growth tests usingKomatsuna in the NFT (Nutrient Film Technique) system, showed degree of leaf freshness (SPAD)and dry matter contents were higher than controls. Also amount of K and Mg was found higher inapplying silicate mineral treated nutrient solution to Komatsuna plants. Conclusion: Therefore, thisnutrient solution treatment system can be expected to be applicable in nutri-culture and hydroponics.

【 授权许可】

Unknown