沼液与化肥配施对苹果生长及土壤养分的影响

Effects of Biogas Slurry Combined with Chemical Fertilizer on Apple Growth and Soil Nutrients

摘要: 以3年生红富士苹果为试验材料，以无肥处理（CK）为对照，探究了不同比例沼液替代化肥处理对苹果生长发育、产质量以及土壤理化性状的影响。结果表明：与CK相比，沼液与化肥配施处理可有效提高土壤pH值和土壤有机质、N、P、K、土壤中微量元素含量，促进苹果树叶片的生长发育和果实品质提升，提高了苹果产量、果皮硬度和可溶性糖、可溶性固形物、Vc含量，降低了苹果可滴定酸含量，各指标均以FZ3处理表现最佳。

Abstract: Three-years-old Red Fuji apple was used as the test material, and no fertilizer was used as control (CK) to study the effects of different proportions of biogas slurry nitrogen instead of chemical fertilizer nitrogen on the apple growth, yield, quality and soil physicochemical properties. The results showed that compared with CK, the combined application of biogas slurry and chemical fertilizer could effectively improve soil pH value and organic matter, N、P、K, trace element content in soil, promote the growth and development of apple tree leaves , improve apple yield, peel hardness and soluble sugar content, soluble solids, Vc content, and decrease the titrable acid content of apple. FZ3 is the best treatment.