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苏联考斯特洛夫从1973年在莫尔多科夫农业试验站开始进行少耕的研究,试验的土壤为淋溶黑土,耕层腐植质8%,全氮0.36%。轮作采用玉米、豌豆、冬黑麦、大麦、玉米等五年五区轮作制。耕深处理,翻地耕深有30、25厘米,耙槎8厘米。试验的气候条件,73年降雨量和气温接近平均年,74年春夏热,75年大旱,76年是湿润年,77年为旱年。试验结果表明,进行耙茬和翻耕比,没使土壤坚实度变紧。土壤水分状况并没有变坏,如1975年6月8日测定0～20厘米土壤水分,连年翻25厘米为20.5%、30厘米为21.5%,而耙茬的为21.1%。花20至40厘米土甚水分相应为25.4%、23.1%、25.4%。
Kostroff from the Soviet Union started the research on less tillage in 1973 at the Mordoffov Agricultural Experiment Station. The soil under test was leached black soil with 8% tillage humus and 0.36% total nitrogen. Crop rotation using corn, peas, winter rye, barley, corn and other five-year rotation system. Tilling deep processing, turning plow deep 30,25 cm, rake 槎 8 cm. The climatic conditions of the experiment, 73 years of rainfall and air temperature close to the average year, 74 years of spring and summer heat, 75 years of drought, 76 years of wet years, 77 years of dry years. The test results show that the stubble and tillage ratio did not tighten the soil compaction. The condition of soil moisture did not deteriorate. For example, soil moisture at 0-20 cm was measured on June 8, 1975, turning 25.5% in successive years, 21.5% in 30 cm, and 21.1% in stubble. With 20 to 40 cm of soil, the water content is 25.4%, 23.1%, 25.4% respectively.