3.堆肥与沤肥用作物的秸秆、杂草、树叶以及垃圾等,掺些人粪尿或牲畜粪尿,经过堆积腐烂后作肥料的叫堆肥;将这些有机物放在坑内,加多量的水,经过腐烂后作肥料的叫沤肥。堆肥和沤肥都是农家肥的重要来源。“见青就是肥”,这句农谚告诉我们一切青草、绿叶都可以作制肥的原料。 3. Composting and fertilizers Crop stalks, weeds, leaves and rubbish, mixed with some human excrement or livestock excrement, after compost composting of fertilizer called composting; these organisms will be placed in the pit, add a large amount of water, After decay, fertilizer called fertilizer. Compost and fertilizer are all important sources of farmyard manure. “Seeing youth is fat”, this sentence tells us all the green grass, green leaves can be used as fertilizer raw materials.