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随着沼气事业的发展,近年来国内外对沼气肥的肥效已有不少研究,但就某一作物在同一土壤上对沼气肥肥效的定点连续观察报道尚少。为了合理地评价沼气肥的肥效,我们从1980年到1982年,连续三年在常德县蔡家岗公社高桥八队进行了沼气肥肥效的定点试验,结果如下: 一、试验方法。试验地土壤是在第四纪红母质发育的土壤。土壤肥力中等,种植作
With the development of biogas business, there have been many studies on the effect of biogas fertilizer at home and abroad in recent years. However, there is still little report on the fixed-point observation of biogas fertilizer efficiency on the same soil in a certain crop. In order to reasonably evaluate the fertilizer efficiency of biogas fertilizer, we conducted a fixed-point experiment on biogas fertilizer efficiency for eight consecutive years in Gaizhouqiao Community of Caijiagang Community in Changde County from 1980 to 1982 with the following results: I. Test Methods. The soil tested was soil developed in the Quaternary parent Rhodamine. Soil fertility, planting for