Yield mapping using method of measuring yield every mesh, 1: Instrument of yield measuring every mesh
2009
Tateishi, K.(National Agricultural Research Center, Tsukuba, Ibaraki (Japan)) | Yukumoto, O. | Sasaki, Y. | Kobayashi, K. | Shigeta, K. | Saitoh, H. | Wen, L. | Seki, M.
We developed a yield-measurement device by every mesh equipped with a measuring hopper placed in the internal surface of the grain tank of the head-feeding combine for yield mapping of various reaping methods with equal precision. We measured the mass of the whole hopper with an estimation error of 1.8% by using a pulling-type load cell and estimated the moisture content of the grain within 1% w.b. by using a moisture sensor. A farm test revealed that the error in the mass measurement was 2.0 kg at the maximum with a 3.4% standard error, and that the standard error of the moisture content measurement was 2.9% w.b. for wheat and 3.2% w.b. for rough rice, and the standard error of the yield measurement was 5.5%.
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