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分别采用盆栽和田间试验,研究不同作物,土壤类型和灌溉方式对沼液消纳能力的影响。当种植作物为青贮玉米、甜高粱和白菜时,紫色土可消纳的沼液量分别为57、157.5和34.5 thm2,而黄壤中可消纳的沼液量为70.5、157.5和40.5 t/hm2。在紫色土中,当种植作物为白菜时,漫灌和喷灌条件下每亩可分别消纳沼液2.4和1.8 t。不同的作物种类、土壤类型及灌溉模式均对沼液的田间消纳具有一定影响。
Pot experiments and field experiments were conducted to study the effects of different crops, soil types and irrigation methods on digestion and biogas capacity. When planting crops such as silage corn, sweet sorghum and cabbage, the volume of biogas slurry that can be absorbed by purple soil was 57, 157.5 and 34.5 thm2, respectively, while the amount of biogas slurry that could be disposed of in the yellow soil was 70.5, 157.5 and 40.5 t / hm2 . In purple soil, when the crop was planted as cabbage, biogas 2.4 and 1.8 t were consumed per mu under flooding and sprinkling irrigation conditions respectively. Different crop types, soil types and irrigation patterns all had some influence on the field consumption of biogas slurry.