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本文根据1979年和1980年国营东辛农场收获三麦和水稻的资料,用五种方法(园锥指数法、园盘指数法、Bekker法、Reece法和《水田土壤参数》课题组法)计算两种联合收割机在田里收获时的下陷量予报值,并与下陷量测定值进行比较,对这五种方法作出评价。作者发展了适用于轮式车辆的园盘指数法,所用仪器与园锥指数法相近,方法也很简单,但予报值范围比园锥指数法窄得多,而且也精确得多。用园锥指数法予报下陷量,可以得到合理的结果。从Bernstein-公式发展起来的Bekker法,Reece法和《水田土壤参数》课题组法均不适用于予报上述联合收割机的下陷量。
Based on the data of harvesting Sanmai and paddy from State-owned East Xinnin Farm in 1979 and 1980, this paper calculates the yield of Sanmai and paddy by using five methods (Cone index method, Park index method, Bekker method, Reece method and Paddy Soil Parameter) The demerit of the two combine harvesters in the field was reported and compared with the measured value of sag, and the five methods were evaluated. The authors developed a disk index method suitable for wheeled vehicles. The instruments used are similar to the cone index method. The method is also simple, but the range of values to be reported is much narrower than the cone index method and much more accurate. Cone index method to report the amount of subsidence, you can get a reasonable result. The Bekker method, the Reece method, and the “paddy soil parameters” group method developed from the Bernstein-formula are not suitable for reporting the sag of the above combine harvester.