Application Mycorrhizal Glomus sp 3 with P Fertilizer to Increase Rice Production of SRI Method and Intensified Soil Nutrient Content

Elita, Nelson and Susila, Eka and Yefriwati, Yefriwati (2020) Application Mycorrhizal Glomus sp 3 with P Fertilizer to Increase Rice Production of SRI Method and Intensified Soil Nutrient Content. In: Proceedings of the 2nd Workshop on Multidisciplinary and Applications (WMA). EAI.

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Abstract

Rice cultivation in Indonesia with conventional systems using stagnant water and high inorganic fertilizers especially P causes the death of beneficial microorganisms and degraded land. The new method of rice cultivation is the SRI (The System of Rice Intensification) method in the vegetative phase of aerobic conditions, allowing live and active lifelong microorganisms, one of them is Arbuscular Fungi Mikoriza (AFM). Indigenous AFM type Glomus sp 3 taken from rhizosfir rice plants SRI method is more adaptive and effective. The objective of this research is to obtain the dosage of Glomus sp 3 indigenous formulations and P fertilizer efficiency on the increase of rice production of the SRI method and the improvement of intensified soil nutrient content. The research was conducted in farmers' fields in Taram, Harau Sub-district. The design used is the Factorial Random Block Design. The first factor is the dose of indigenous AFM formulation. The second factor is the efficiency of P fertilizer with 3 replications. The results of mycorrhizal dose were significantly different in a number of tillers. P fertilizer efficiency of 50% gives a real effect on plant height and number of tillers. Giving Glomus sp 3 20 kg/ha increased the number of tillers 31.22 seedlings and rice yield 8 tons/ha. The best P fertilizer efficiency at 50% dose of rice production reached 9.83 t`ha, the result of this study is much higher than previous research. The increase of soil nutrient content of paddy field intensification from initial nutrient analysis before research with after research is shown by increasing quality of soil chemical properties especially pH reach 19,80%, organic matter until 85,12%, Ntotal reach 44,44%, P- available 77.77%, K-dd 58.33%, and KTK 24.8%. The conclusion of the increase of rice production of the SRI method with mycorrhizal Glomus sp 3 20 kg/ha and P fertilizer efficiency of 50% so that the increase of paddy production is 93,50%. The result of soil nutrient analysis intensified the increase of soil fertility status from low to moderate.

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