Publication Date
1985
Location
Kyoto Japan
Description
The effects of nitrogen and potassium fertilization were examined on dry-matter production, N, P, Ca, and Mg contents and competitive relation for the nutrients uptakes in mixed culture of forage sorghum and soybean. The nutrients contents. of sorghum in mixed culture tended to be high under nitrogen or potassium fertilization, in comparing with those in pure culture. The density exchange rate of sorghum was less than 1.0, and that of soybean was greater than 1.0. It was suggested that inter-specific competition for sorghum and intra-specific competition for soybean showed greater effects on dry matter production and nutrients uptakes of individual plants in mixed culture, respectively. Sorghum exploited potassium better than the other nutrients in mixed culture, and competitive ability of soybean on magnesium utilization suggested to be high. Higher values in relative yield were recognized for the nutrient compared with relative yield for dry matter under nitrogen or potassium fertilization, whi��h suggested that sorghum was dominant in respect to nutrients uptakes.
Citation
Kawamoto, Y; Masuda, Y; and Goto, I, "Effects of Nitrogen and Potassium Fertilization on Dry-Matter Production, Nutrients uptakes and Competitive Relation in Mixed Culture of Forage Sorghum and Soybean" (1985). IGC Proceedings (1985-2023). 1.
(URL: https://uknowledge.uky.edu/igc/1985/ses14/1)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Effects of Nitrogen and Potassium Fertilization on Dry-Matter Production, Nutrients uptakes and Competitive Relation in Mixed Culture of Forage Sorghum and Soybean
Kyoto Japan
The effects of nitrogen and potassium fertilization were examined on dry-matter production, N, P, Ca, and Mg contents and competitive relation for the nutrients uptakes in mixed culture of forage sorghum and soybean. The nutrients contents. of sorghum in mixed culture tended to be high under nitrogen or potassium fertilization, in comparing with those in pure culture. The density exchange rate of sorghum was less than 1.0, and that of soybean was greater than 1.0. It was suggested that inter-specific competition for sorghum and intra-specific competition for soybean showed greater effects on dry matter production and nutrients uptakes of individual plants in mixed culture, respectively. Sorghum exploited potassium better than the other nutrients in mixed culture, and competitive ability of soybean on magnesium utilization suggested to be high. Higher values in relative yield were recognized for the nutrient compared with relative yield for dry matter under nitrogen or potassium fertilization, whi��h suggested that sorghum was dominant in respect to nutrients uptakes.
