Application of biocompost enriched with arbuscular mycorrhizae for the growth of Allium cepa L

Synthetic technology application in the planting center of onion (Allium cepa L) Enrekang district,
Indonesia, has passed the threshold recommendation dosage of manufacturer and agricultural
extension. The synthetic fertilizer application with high dosage and inefficient nutrient absorption by
plants is a problem that must be solved. So that, the proposed solution hypothesis is the application of
biocompost enriched with Arbuscular Mycorrhizae (AM) as biological agents can reduce synthetic
fertilizers use and absorption nutrients increase by plants. The aim of research to determine the growth
of Allium cepa given dosage of biocompost enriched with AM, and research novelty are modification
of innovation biocompost with AM as biological agent for growth of Allium cepa. The research was
conducted for six months using model of Randomized Block Design. The treatment dosage of
biocompost enriched with AM, are BM0 (control: Allium cepa planting method of local farmers); BM1
(Dosage of biocompost 100 kg.plot-1
+ AM); and BM2 (Dosage of biocompost 200 kg.plot-1
+AM),
enrichment of biocompost with AM was carried out by mixing 2 kg of AM propagules for each
treatment. The observed research variables are leaves number, root length, root diameter, root surface
area, and tuber number. Observational data in the field and laboratory were analyzed using analysis of
variance and Duncan's test. The results showed that the biocompost at a dose of 200 kg.plot-1
enriched
with AM showed better growth in leaf number, root length, root diameter, root surface area, and the
number of tubers compared to other treatments. So that the application of biocompost at a dose of 200
kg.plot-1
is the main finding in this study and can be recommended as a good dose for the production
of Allium cepa which is environmentally friendly. This research supports sustainable and
environmentally friendly agricultural systems which are the scope of healthy future agriculture.