Yearly Variation of Growth and Yield of Green Maize (Zea mays L.) under Different Paddy-Upland Rotation.

In the past, Korea focused more on increasing rice production for self-sufficiency of food, and rice self-sufficiency rate has increased to 95.7% in 2013. However, due to increase in rice stock amount, the government decided to decrease rice cultivation area.Therefore, this study was conducted for three main purposes. The first was to investigate the growth and yield of green maize in the organic paddy-upland rotation system, the second was to investigate yearly variation of growth and yield of green maize and the third was to select the suitable varieties for paddy-upland rotation.