Authors:
Mieke Rochimi Setiawati*, Syifa Nabila Kurnia
, Pirda Nurhopipah
, Anas Ramdhani
, Pujawati
Suryatmana
, Betty Natalie Fitriatin
, Diyan Herdiyantoro
and Dan Tualar Simarmata, Indonesia |
Abstract:
The growth of rice plants is restricted by saline soil conditions. The use of ameliorant briquettes
and the application of biofertilizer (Klebsiella pneumoniae and Pseudomonas stutzeri) are efforts
to promote plant growth and reduce the effects of salt stress on rice plants cultivated in saline
soil. The combination of PGPR biofertilizer with ameliorant briquettes has been studied to
increase plant development, N-fixing bacteria in the rhizosphere and endophytic bacteria, plant N
uptake, and dry weight of rice plants on saline soil. The experiment was conducted in the
Ciparanje Experimental Greenhouse at the Faculty of Agriculture Universitas Padjadjaran. A
Randomized Block Design with 12 treatment combinations and 3 replications was used in this
study. The treatment used is the application of biofertilizer, ameliorant briquettes, and their
combination on non-saline soil with salinities ranging from 4 to 8 dS.m-1. The results of the
experiments revealed that using biofertilizer with ameliorant briquettes affected the population of
N-fixing endophytic bacteria, nitrogen content of plant, chlorophyll content and plant height,
root length, dry weight of rice plants in the saline soil. The research findings revealed that
biofertilizer mixed with ameliorant briquettes on 4 dS.m-1 saline soil performed better in
improving all measured parameters than treatment without biofertilizer or ameliorant briquettes
at the same salinity level. Biofertilizer treatment combined with ameliorant briquettes on saline
soil of 8 dS.m-1 enhances plant height, root length, population of N-fixing endophytic bacteria,
and N content compared to treatment without biofertilizer or ameliorant briquettes at the same
salinity level. |
