Peatlands is a very specific ecosystem with conditions that are always flooded, fragile, relatively infertile, able to absorb more water, and bad aeration. Riau has the largest peat land, which is 64% of the total peatlands area in Sumatra, but the development of shallot has not been intensively cultivated. So it must be dealt with seriously. The use of compost fertilizer and the frequency of NPK apply can improve the nature of these peatlands and increase crop production. The aim of study was to determine the interaction effect and the main application of compost and the frequency of NPK apply to increasing shallot production on peat soil. Research conducted at the Faculty of Agriculture Experimental Farm, Riau Islamic University during 6 month, i.e. form March - August 2018. Factorial Completely Randomized Research design, the first factor was 10, 20 and 30 tons/ha of corn compost, the second factor was NPK 16:16:16 fertilization frequency 1 and 2 fertilizing doses of 150, 300 and 450 kg/ha. Parameters observed were peat analysis, tuber number, tuber diameter, wet tuber weight per clump, dry tuber weight per clump and percentage of tuber shrinkage. The results showed that the interaction and main effects were significant for all observed parameters with the best treatment of compost is 30 tons/ha and 2 times the fertilizer dose of 150 kg/ha per application (300 kg/ha). Keywords: Shallot, Frequency, Compost, Fertilization, NPK, Production

ABSTRACT   The increased productivity of peatlands can be done by applying an intercropping system. The commodities that can be intercropped are chili and shallots. This research aims to determine the planting distance and dosage of NPK fertilization on production in intercropping of chili and shallot on peat soil. This research was conducted from August to December 2018 at the Experimental Farm, Faculty of Agriculture, and Islamic University of Riau. Research experiments used a completely randomized design with three replications. The first factor of the spacing consisted of 4 levels, J1 (50 x 50 cm), J2 (60 x 50 cm), J3 (70 x 50 cm). The second factor of NPK 16:16:16 fertilizer dosage were N0 (0 kg. ha-1), N1 (250 kg. ha-1), N2 (500 kg. ha-1), N3 (750 kg. ha-1). Shallot was planted 2 weeks before planting chili with a spacing of 20 cm x 20 cm. The results indicated that the best planting distance and dosage of NPK on intercropping chili pepper and shallots in peatland was  50 x 50 cm and NPK 500 kg/ha for growth and production of shallots. The best planting distance and dosage of NPK on intercropping chili pepper and shallots in peatland was  50 x 50 cm and NPK 750 kg/ha for the production of chili pepper.

The objective of this research was to know the effect of giving bamboo shot extract and superior plant hormone fertilizer on growth and yield of mung bean. The research was conducted at the experimental farm Faculty of Agriculture Riau Islamic University Pekanbaru. The research was arranged using a completely randomized design with two factorials. The first factor used bamboo shoot dosage (R) with four level treatment: without extract (R0), 1,5 ml/l water (R1), 3,5 ml/l water (R2), and 4,5 ml/l water (R3), and the second factor used superior plant hormone plant doses (H) with four level treatment: without hormone (H0), 2 cc/l water (H1), 4 cc/l water (H2), and 6 cc/l water (H3). The parameter observed consisted of pant height, flower age, harvest age, pod number per plot, pod weight per plot, and weight of 100 seeds.   Data analyzed by using statistic and BNJ test at the 5% significance level. Interactionally, the application of bamboo shot extract and superior plant hormone fertilizer showed a significant effect on shoot height and number of pod per plant with the best treatment 4.5 ml/l water of shoot extract and 6 cc/l water of pant hormone. Individually, the application of bamboo shot extract affected significantly on height plant, harvest age, and weight of 100 seeds with the best dosage of 4.5 ml/l water and the application of superior plant hormone fertilizer influenced significantly on pant height, flower age,  and pod weight per plant with the best dosage of 6 cc/l water.

ABSTRACT Low fertility was the problem of shallot development in peat.Compost with the right level of maturity can improve the characteristic of peat. Aim of this research was to determine the effect of maturity level of compostto production of three shallot varieties in peat. The experiment was conducted at Experimental Farm,Islamic University of Riau from April to August 2017. The research used a completely randomized design with 3 replications. Treatments were no compost, maturity level 1 week, 3 weeks, and 5 weeks and Kampar, Medan, and Brebes varieties. Compost of 3 week gave the best result on compost and peat soil analysis. However, Compost of1 weekprovides the highest increase on pH. Compostof 1 week significantly increase the number of bulbon Kampar variety ie 7.56 bulbs, while wet weight bulb and dry weight bulb per plot on Brebes varietyie 1062.83 g and 920.83 g.

The cultivation of shallots in peat is constrained by the low level of soil fertility and one of methods to increase the nutrient content is by applying trichocompost. Trichokompos is material from plant residues that are composted and mixed with Trichoderma sp. as decomposers. Trichocompost improves soil fertility (soil biology, physics, and chemistry). The purpose of this study was to determine the effect of trichocompost doses on various peat compositions on the yield of shallots. Research was conducted at the Experimental farm of Faculty of Agriculture, Islamic University of , Pekanbaru during 4 months, starting form June to September 2018. The design used was completely randomized factorial with 2 factors, namely Trichocompost Dose, levels 0, 4, 8, 12 g Trichoderma/kg compost and peat composition level: 100, 75, 50, 25%. Parameters tested: plant height, age of tuber formation, number of leaves, number of tubers, and tuber weight. The data were statistically analyzed and the BNJ follow-up test at 5% level. The results showed that the dose of trichocompost combined on peat had a significant effect on all observation parameters and the best treatment was 8-12 g trichoderma/kg compost at 75% peat composition.