Journal of Northern Agriculture ›› 2022, Vol. 50 ›› Issue (5): 41-47.doi: 10.12190/j.issn.2096-1197.2022.05.06

• Soil and fertilizer · Physiology and biochemistry • Previous Articles     Next Articles

Effects of mixed application of microbial fertilizer and chicken manure on apple seedling growth and saline-alkali soil improvement

MIAO Ping, LI Fakang, CUI Guodong, WANG Zhenyu   

  1. Gansu Construction Investment Ecological Construction Group Co. Ltd.,Lanzhou 730070,China
  • Received:2022-08-12 Online:2022-10-20 Published:2023-01-10

Abstract:

【Objective】The effects of microbial fertilizer mixed with chicken manure on the growth of apple seedlings and the improvement of saline-alkali soil in apple field were studied in order to provide theoretical basis for the improvement of saline-alkali soil in apple field in Gansu Province.【Methods】Five treatments were set up:no fertilizer(blank,T0),single microbial fertilizer(control,T1),50 g/(kg soil) chicken manure+microbial fertilizer(T2),75 g/(kg soil) chicken manure+microbial fertilizer(T3),100 g/(kg soil) chicken manure+microbial fertilizer(T4). At 30,60,90,and 120 d,the effects of various treatments on apple seedling development,root activity and soil pH value,total salt content,bulk density,enzyme activities were studied.【Results】Combined application of chicken manure and microbial fertilizer,the leaf area of apple seedling leaves had no significant change(P>0.05). At 120 d,in T4 treatment,the leaf SPAD value of apple seedling was the largest,15.75% and 12.88% higher than that in T0 and T1 treatment,respectively. The soil total salt content,pH value,and bulk density were the lowest, 15.51%,6.53%,and 23.82% lower than T0 treatment,and 14.20%,3.49%,and 20.34% lower than T1 treatment,respectively. At 120 d,in T3 treatment,apple seedling had the highest root activity,12.15% and 4.41% higher than those in the T0 and T1 treatments,respectively. The ALP activity,S-UE activity and NAG activity of saline-alkali soil in apple field were the highest,increased by 65.52%,29.96% and 116.38% respectively compared with T0 treatment and 17.07%,14.95% and 34.23% respectively compared with T1 treatment.【Conclusion】The growth of apple seedlings and saline-alkali soil were improved by the treatments of 75 g/(kg soil) chicken manure+microbial fertilizer and 100 g/(kg soil)chicken manure+microbial fertilizer. The longer the treatment period,the more pronounced the effects on apple seedling growth and soil improvement were.

Key words: Microbial fertilizer, Chicken manure, Apple, Seedling growth, Saline-alkali soil, Physicochemical properties, Enzyme activity

CLC Number: 

  • S661.106