Heat was obtained from decomposing manures and hot air flues.靠肥料分解和烟道为植物提供热量.Farmers enrich the soil with organic and inorganic manures.农民用有机肥料和无机肥料来提高土壤的肥力.Six organic manures were used to apply to celery and romaine le...

Six organic manures were used to apply to celery and romaine lettuce in soilless culture.采用基质栽培试验研究了不同有机肥种类对叶类蔬菜(芹菜和生菜)硝酸盐和营养品质的效应.Farmers enrich the soil with organic and inorganic manures.农民用有机肥料和无机肥料来提高土壤的肥力.Heat was ...