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１９９５～１９９７年在中国农业大学杂草研究室完成的研究结果表明，稗草室内出土的最低温度是５℃，最高是４５℃，适宜温度是３０～３５℃，５～５０℃内相邻温度出土率显著变化的段是２０～２５℃和３５～４０℃，稗草出土最快的温度是４５℃；稗草出土的水分极限点是２０％，适宜水分是８０％，２０％～１００％内相邻水分出土率显著变化段是４０％～６０％，稗草出土最快的水分含量是１００％；０～２ｃｍ是稗草出土的适宜土壤深度；温度（５～５０℃）和水分（０～１００％）在对稗草出土的作用中，两者之间存在一定程度的互补作用，温度对水分的互补作用尤为明显。建立了稗草室内出土的量与温度、水分相关的数学模拟公式。
The results of the research conducted by Weed Research Office of China Agricultural University from 1995 to 1997 showed that the lowest temperature of barnyardgrass unearthed in the interior is 5 ℃, the highest is 45 ℃, the suitable temperature is 30 ~ 35 ℃, the adjacent temperature in 5 ~ 50 ℃ The section with significant changes of the excavated rate was 20-25 ℃ and 35-40 ℃. The fastest temperature of barnyardgrass excavated was 45 ℃. The ultimate limit of water content of barnyardgrass was 20% and the suitable moisture content was 80% and 20% -100% The soil moisture content of barnyardgrass was 100%. The soil depth of 0 ~ 2cm was suitable for barnyardgrass unearthed. The temperature (5 ~ 50 ℃) and water ( 0 ~ 100%) In the role of barnyardgrass unearthed, there is a certain degree of complementarity between the two, the role of temperature on water complementarity is particularly evident. The mathematic formula for the temperature and water content of barnyardgrass was established.