Zhu Xiaohong Xie Kunqing Xu Xiru Cheng Jicheng. THE STRUCTURE ANALYSIS OF WINTER WHEAT YIELD AND THE PIRNCIPAL OF REMOTE SENSING ESTIMATION OF WINTER WHEAT YIELD[J]. Journal of Remote Sensing, 1989, (2): 116-127. DOI: 10.11834/jrs.1989013.
This paper tells some experimental results of remote sensing estimation of winter wheat yield under the condition of controlable sample fields. The controlable sample field means that winter wheat was grown on a cement pool with 3.25 meters long
2.37 meters wide and 2.00 meters in depth to enlarge the span of yield by controling fertilizer and watering. During the growing season necessary agronomic parameters
such as LAI
the ear number
average grain number and the grain weight
etc.
were measured
at the same time we measured spectral parameters. Based on finding the relationship between spectral parameters of different stages and three basic factors which form winter wheat yield an integral formular for remote sensing winter wheat yield estimation was found. An analysis and discusion was made for the principal of remote sensing estimation of winter wheat yield.