Open AccessPlant growth promoting effects of indigenous rhizosphere and endophytic bacteria on soil fertility and black pepper (Piper nigrum) yield at Bangka Belitung
Author(s) -
Gusmaini,
Andriana Kartikawati,
Hera Nurhayati,
Mamik Sarwendah
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/418/1/012057
Subject(s) - rhizosphere , pepper , rhizobacteria , bacteria , biology , randomized block design , soil fertility , biofertilizer , agronomy , botany , horticulture , soil water , ecology , genetics
Black pepper cultivation in Bangka Belitung is commonly followed a shifting cultivation method. This is due to the low soil fertility. The study aimed to obtain the best combination and concentration of indigenous rhizosphere and endophytic bacteria to improve soil fertility and enhanced growth and yield of black pepper. The study was set up in a complete randomized block design, 9 treatments and 3 replications. The treatments were the combinations of the types and concentrations of the bacterial isolates, i.e. (1) Control, (2) Endophytic bacteria A , (3) Combination of Endophytic bacteria B + Bb. chosinensis+ Rhizobacteria A , (4) Combination of Rhizobacteria B + Endophytic bacteria A+ Endophytic bacteria C , (5) Combination of Endophytic bacteria B + Endophytic bacteria C + Endophytic bacteria D at 10 5 and 10 8 cpu ml −1 respectively. Endophytic bacteria were capable to boost the growth and yield of black pepper, also improved the soil chemical properties. The best treatment combinations were the mixture of of bacteria, i.e. (1) Psedomanas sp.+ Brevibacillus sp+Mesorhizobium sp ., (2) Bb. sp1 +Bb. sp2+Bacillus sp ., and (3) Brevibacillus sp +Bb sp1+Bacillus sp . The study implies that rhizosphere and endophytic bacteria are potential to be developed for reducing fertilizer use in black pepper cultivation.