Authors:
Mieke Rochimi Setiawati
, Ibnu Rizki Perdana
, Pujawati Suryatmana
, Anni Yuniarti
and Betty Natalie
Fitriatin, Indonesia |
Abstract:
Salinity due to abiotic stress can reduce the yield and productivity of agricultural crops. The
negative effects of salinity stress can be overcome by adding soil organic matter that is enriched
with beneficial microbes. The aim of this research is to evaluate the application of a combination
of straw compost with biostimulant microbes and doses of N, P, K fertilizer which can increase
soil fertility and red chili yields and can reduce the use of inorganic fertilizer doses on Inceptisols
saline and non-saline soils. The research was designed using the Randomized Block Design with
14 treatments combination and three replications, namely control treatment, as well as a
combination of rice straw compost without or with added biostimulants with reduced doses of N,
P, K fertilizer on non-saline and saline soils (4 dS /m). The research results showed that the
combination of straw compost treated with biostimulants with various levels of N, P, K fertilizer
doses was able to increase plant N content, Phosphate Solubilizing Bacteria (PSB) population
and red chili plant yields in both saline and non-saline Inceptisols. Biostimulants applied to straw
compost can reduce the use of N, P and K fertilizer doses by up to ¼ of the recommended dose
for the fruit weight of chili plants planted in saline Inceptisols soil.
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