Browsing by Author "Khoiri,Amrul"

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    Emisi Gas Co2, Ch4 Dan Pertumbuhan Serta Produksi Tanaman Padi di Lahan Gambut Akibat Pemberian Berbagai Rasio Amelioran dan Zpt Alami
    (2013-07-30) Alatas, Ali; Nelvia; Khoiri,Amrul
    This research aimed to learned the capability some of amelioran ratio and application natural PGR on the rice crop in peatlands to increased the growth and production and also pressed emision gas CO2 and CH4. This research has done in peatlands in Tanjung Air Hitam village, Pelalawan, from August 2012 until February 2013. This research has done experimentally used split plot design. The main plot was natural PGR from banana stump (Z1) and bamboo shoot (Z2). The subplot was amelioran ratio {dregs and compost of Oil Palm Empty Fruit Bunch (OPEFB)}, with 3 level treatment, there are 1:4 (dregs 1,25 ton/ha : 5 ton/ha OPEFB compost); 1:2 (dregs 2,5 ton/ha : 5 ton/ ha OPEFB compost) and 1:1 (dregs 5 ton/ ha : 5 ton/ ha OPEFB compost). In this research was got 6 combination with 3 replication. The result showed commonly application amelioran ratio 1:4 with PGR from banana stump inclined produced the result of maximum tillers, productive tillers, volume root, dry weight straw and the highest production and the highest emision gas CO2 and CH4, either vegetative and generative phase. The lowest emision gas CO2 and CH4 were in application 1:1 amelioran ratio with PGR from bamboo shoot, either vegetative and generative phase.
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    Uji Berbagai Dosis Kompos Lcc (Legum cover crop) Dengan Bioaktifator Orgadec Pada Pertumbuhan Bibit Okulasi Karet (Hevea brasiliensis)
    (2013-02-06) Indrasari, Dwi; Sampoerno; Khoiri,Amrul
    Rubber is one of the plantation in Indonesia to support the country's economy, providing jobs, as a source of foreign exchange earnings and as a source of rubber farmers. The first step that must be done in order to prepare for the development of rubber cultivation is quality seeds. Growth of seedlings was obtained when the medium used has good quality in terms of physical, biological and chemical. One of the businesses that are growing medium that can fertilize seedlings with compost fertilizer LCC (Cover Crop Legumes). This research aims to examine the use of different doses of compost LCC and determine the appropriate dose for gum grafting seedling growth conducted in the Laboratory of Plant Experimental Farm Faculty of Agriculture, University of Riau for 4 months, starting from January to April 2012. The design used was completely randomized design (CRD), which consists of 6 treatments and 3 replications. With the treatment that K0 (without compost), K1 (50 g / polybag), K2 (75 g / polybag), K3 (100 g / polybag), K4 (125 g / polybag) and K5 (150 g / polybag). From the research that has been done shows that administration of compost in nursery grafting LCC rubber grafting effect on shoot length, the number of leaves, shoot dry weight and ratio of crown root grafting. While in the bud grafting circumference added no effect. From this research the best influence on the dose of compost LCC 150 g / polybag