不同配比的牛粪与玉米秸秆对高温堆肥的影响

研究了牛粪与玉米秸杆不同配比(体积比)条件下对高温堆肥的影响.结果表明:牛粪与玉米秸秆以3∶7配比效果最佳,堆肥升温快,2 d达到55℃,高温维持时间为16 d,达到了快速腐熟的目的;至堆肥结束时,堆体无恶臭,呈现黑褐色,体积减少量为56%,pH 8.4,总固体溶解量为1 275 mg·L-1,电导率为2.55 ms·...

Effects of different ratios of dairy manure and corn stalk on high temperature composting process

The effects of different ratio of dairy manures and corn stalks(V/V) on high temperature composting process was studied.The results indicated that 3∶7 of dairy manures and corn stalks was the best ratio,under this condition,the compost was found with its temperature rising rapidly to 55 ℃ on the second day,and high temperature maintained for 16 days.This met the purpose of sterilization and thorough decomposition.At the end of the composting,the compost was found with no odor,showing dark brown,its volume reduction was 56 %,pH value was 8.4,TDS value was 1 275 mg·L-1 and EC conversion value was 2.55 ms·cm-1,its total carbon content decresed 9.23 %,the total nitrogen content increased 1.01 %,the seed germination index(GI) was 88.95 %,all the indexes met the compost quality standards.Thus,in practice,dairy manure in the composting of raw materials accounts for 30 % in volume is suitable.