The effect of dosages of microbial consortia formulation and synthetic fertilizer on the growth and yield of field-grown chili

4th International Conference on Sustainable Agriculture and Environment

农业科学;生态环境科学

Istifadah, N.^1 ; Sapta, D.^2 ; Krestini, H.^3 ; Natalie, B.^2 ; Suryatmana, P.^2 ; Nurbaity, A.^2 ; Hidersah, R.^2

Department of Plant Pests and Diseases, Agriculture Faculty, Universitas Padjadjaran, Jl Raya Bandung-Sumedang Km 21, Jatinangor, Jawa Barat

45363, Indonesia^1

Department Soil Sciences, Agriculture Faculty, Universitas Padjadjaran, Jl Raya Bandung-Sumedang Km 21, Jatinangor, Jawa Barat

45363, Indonesia^2

Vegetable Research Station, Lembang, Bandung Barat, Jawa Barat, Indonesia^3

关键词: Azotobacter chroococcum;    Bacillus Subtilis;    Completely randomized designs;    Horticultural crops;    Microbial consortia;    Nitrogen availability;    Synthetic fertilizers;    Trichoderma harzianum;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/142/1/012012/pdf
DOI  :  10.1088/1755-1315/142/1/012012

来源: IOP

【 摘 要 】

Chili (Capsicum annuum, L) is one of important horticultural crop in Indonesia. Formulation of microbial consortia containing Bacillus subtilis, Pseudomonas sp., Azotobacter chroococcum and Trichoderma harzianum has been developed. This study evaluated the effects of dosage of the microbial formulation combined with NPK fertilizer on growth and yield of chili plants in the field experiment. The experiment was arranged in completely randomized design of factorial, in which the first factor was dosage of formulation (0, 2.5, 5.0, 7.5, 10 g per plant) and the second factor was NPK fertilizer dosage (0, 25, 50 and 75% of the standard dosage). The treatments were replicated three times. For application, the formulation was mixed with chicken manure 1:10 (w/v). The results showed that application of microbial formulation solely improved the chili growth. There was interaction between dosages of the microbial formulation and NPK fertilizer in improving plant height, nitrogen availability and the chili yield, while there was no interaction between those dosages in improving the root length. Combination between microbial formulation at the dosage of 5.0-7.5 g per plant combined with NPK fertilizer with the dosage 50 or 75% of the standard dosage support relatively better growth and the chili yield.