Study on Effects of Cotton-Rice Rotation on Increasing Rice Yield by Remote Sensing Experiment

A satellite remote sensing experiment, designed to test the difference in ratio vegetation index between continuous monoculture of rice and rotation of cotton and rice, was carried out at Xinghua between 2001 and 2002. The methods of analysis developed for this experiment are described in the present paper and demonstrated using ratio vegetation indexes of rice. We conclude that the mean rice ratio vegetation indexes of the two culture modes are different. That is, we have found sufficient statistical evidence to conclude that the rice yield of rotation of cotton and rice is greater than the rice yield of continuous monoculture of rice.