【摘要】 通过完全随机区组试验,研究施用沼肥对桉树幼林生长量、材积量和土壤肥效的影响,结果表明表现最好为处理5,其桉树胸径、树高、材积量分别为10.94 cm、13.12 m、0.059 m3,分别比处理2增长11.7%、1.71%、18.0%,胸径、材积量均达到显著差异水平。沼肥与复合肥混施可增加土壤有机质,提高土壤中速效N、P、K的含量。在桉树生长前期,追肥每次每株施用沼肥5 kg+复合肥250 g为较合适。更多还原

【Abstract】 With a complete randomized block experiment,the effects of applying biogas fermentation residue on growth,volume and soil fertility of Eucalyptus young forests were studied.The result indicated that treatment No.5 was the best treatment.The diameter at breast height,height and volume of Eucalyptus young forests after treatment of No.5 were 10.94 cm,13.12 m and 0.059 m3,respectively,increased by 11.7%,1.71% and 18.0% if compared to the treatment of No.2.There was a significant difference between treatment No.5 and No.2 in the diameter at breast height and volume.The soil organic matter,available N,P,and K contents could increased by the mixed application of biogas fermentation residue and compound fertilizer.The fertilizing amount of 5 kg biogas fermentation residue plus 250 g compound fertilizer once per plant for topdressing was appropriate for Eucalyptus growth at early stage.更多还原