TITLE:
Effects of Lignin on Root Activity and Soil Nutrients of Malus hupehensis. var. pingyiensis under the Use of Organic Fertilizer
AUTHORS:
Tingwen Lv, Hongqiang Yang, Ruixue Zhang, Weiguo Fan, Ying Xu, Hui Cao, Liufang Ning, Chunran Zhou, Li Wang
KEYWORDS:
Malus hupehensis. var. pingyiensis, Lignin, Organic fertilizer, Nutrients
JOURNAL NAME:
Agricultural Sciences,
Vol.8 No.5,
May
22,
2017
ABSTRACT: One-year Malus hupehensis. var. pingyiensis seedlings potted in soil mixed with 10% or 40%
organic fertilizer were treated with two concentrations of lignin (1.5 and 2.5
g·kg-1), and
detected the effects of lignin on root activity and soil nutrients in
rhizosphere soil of Malus
hupehensis. var. pingyiensis. (1) Lignin improved root activity of Malus hupehensis. var. pingyiensis,
increased soil available nitrogen contents and soil organic matter contents.
(2) Under 10% organic fertilizer, lignin improved soil available P and K
contents. The root activity in Malus
hupehensis. var. pingyiensis was the largest in 2.5 g·kg-1lignin
treatment. (3) Under 40% organic fertilizer, compared with the CK2 (the treatment of soil with organic fertilizer
content 40%), lignin decreased the content of rhizosphere soil available K. 1.5
g·kg-1 lignin
treatment had obviously increased the content of soil available P. The root
activity was the largest in 2.5 g·kg-1 lignin
treatment, while the content of rhizosphere soil available K lowered 8.5%
compared with that of CK2 in the same treatment. Lignin changed the soil
nutrients, 2.5 g·kg-1 lignin
significantly improved root activity of Malus
hupehensis. var. pingyiensis. The results provided a theoretical basis for the
regulation of root activity and soil nutrients in Malus hupehensis. var. pingyiensis.