Effect of Effective Microorganism (EM) Application and Mulching on The Yield of Japanese Pole Bean (Phaseolus vulgaris)

Authors: Ugyen Wangdi, Ngawang, Tshering Yangden, Tashi Phuentsho, Kencho


The experiment was conducted with the main objective to determine effect of EM and mulching on the yield of beans at ARDC -Samtenling. The trial was laid in RCBD with four treatments in various combinations of mulching and EM application. EM was applied at the rate 40ml per litre of water at the time of sowing and later foliar application was done fortnightly till the crops were harvested. Yield data, 50% anthesis, days to maturity, pod weight, pod length and pod diameter were recorded. It was observed that treatment T1 (plastic mulch with EM application) was highest with average yield of 9.68MT per acre followed by T3 (paddy straw mulch with EM application) with 9.00MT. The Yield for treatment T2 (plastic mulch without EM application) is 7.29MT/acre.  The performance of the control (T0-without mulch and without EM application) was lowest (4.61MT/acre) with significant difference from the rest of the treatment. There was a positive effect on the germination with highest germination percentage in T1 (99.2%); but there were no significant differences among the treatments. There is no significant effect on the growth parameters, although they performed well with EM application and mulching. EM and mulching had negative effect on number of plants reaching 50% anthesis and days to maturity. To understand the effect of EM alone (and not in combination with mulching), further research is required on the different methods and rates of EM application and its action. Information is also required to establish the role of EM in phenotypic changes crop growth, nutrient content and shelf life of the produce.

Keywords: Effective Microorganism, Germination percentage, Growth, Yield

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