Pre-wetting time judging method and system and crop straw pre-wetting method

The invention discloses a pre-wetting time judging method and system and a crop straw pre-wetting method. The pre-wetting time judgment method is used for judging the optimal pre-wetting time of cropstraw used for manufacturing agaricus bisporus compost, and comprises the steps that the water absorption capacity of the crop straw after different soaking time is measured so as to determine the saturated soaking time of the crop straw; and the temperature, the water absorption capacity, the nutrient substance loss amount and/or the change of the straw surface structure of the soaked crop strawafter different stacking time are measured so as to determine the optimal stacking time of the crop straw, wherein the sum of the saturated soaking time and the optimal stacking time is equal to the optimal pre-wetting time of the crop straw. Therefore, on the premise of ensuring that the crop straw has good water absorption capacity, the advanced consumption of nutrient substances is reduced. 一种预湿时间判定方法及其系统和麦草预湿方法。该预湿时间判定