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文章研究了城市污泥和污泥混合堆肥对作物生长发育、轮作中作物产量和土壤肥力的影响。结果表明,城市污泥混合堆肥对大麦生长有较大影响,与对照相较,苗期株高差别不明显。分蘖期、拔节期和抽穗期的株高分别比对照高86%、117%和29.7%。产量数据表明,施用城市污泥的处理增产172%～272%,施用城市污泥-羽扇豆混合堆肥(简称混合堆肥)的处理增产236%～292%。土壤肥力明显提高,单独施用城市污泥15、30和60t·hm-2的土壤,速效氮含量分别增加32%、128%和213%,施用混合堆肥的土壤速效氮含量分别增加47%、242%和345%,城市污泥和混合堆肥中全磷的高含量使该元素在土壤中明显增加。耕层0～20cm中速效磷含量随着施用量的增加分别成比例地增加了3.0、4.7和7.1倍,K2О的含量仅在施用了含钾的化学肥料时发现增长。
The article studied the effects of municipal sludge and sludge compost on crop growth and development, crop rotation and soil fertility. The results showed that the composting of municipal sludge had a significant effect on the growth of barley, compared with the control, the difference of plant height was not obvious at the seedling stage. The plant height at tillering stage, jointing stage and heading stage were 86%, 117% and 29.7% higher than the control respectively. Production data show that the application of urban sludge treatment increased 172% ~ 272%, the application of municipal sludge - Lupine mixed compost (referred to as the compost) treatment yield 236% to 292%. Soil fertility was significantly increased. Available N alone increased 32%, 128% and 213%, respectively, and soil available N increased 47% and 242%, respectively, when applying municipal sludge at 15, 30 and 60 t · hm- % And 345%, respectively. The high content of total phosphorus in urban sludge and mixed compost increased the content of this element in soils. The contents of available phosphorus in the 0-20 cm layer increased 3.0, 4.7 and 7.1 times respectively with the increase of the application rates. The content of K2 O3 increased only when the chemical fertilizer containing potassium was applied.