Respon Tanaman Pakcoy (Brassica rapa L.) terhadap Pemberian Kompos Limbah Ekstraksi Minyak Atsiri pada Tanah Ultisol
Abstract
Based on these problems, the purpose of this study is: 1) identify the influence of organic fertilizers derived from solid waste from essential oil industry on the growth and yield of pakcoy plants on Ultisol. 2) determine the length of the right fertilizer incubation time for the growth and yield of pakcoy plants. 3) determine the type of compost from the solid waste from the essential oil industry is best for the growth of pakcoy plants on Ultisol. The research was conducted from January to April 2020 at the screen house located in Village II, Kebanggan, Sub-district Sumbang, Banyumas Districts and Soil and Land Resources Laboratory of the Faculty of Agriculture, Jenderal Soedirman University. The experimental design used was a complete Randomized Blok Design (RBD) factorial pattern with two factors. The first factor was the kind of compost from the solid waste from the essential oil industry (P) consisting of Control (without fertilizer), compost from cocoa plant beans, from fruit kemukus plant, from the roots of fragrant root crops, from coffee plant beans, from rhizomes ginger plants, and from sediment IPAL (Waste Water Treatment Plant), and the second factor was the incubation time of compost fertilizer, which consisted of four and eight weeks. The observed variables were plant height, number of leaves, leaf area, fresh weight of plants, fresh weight of roots, and dry weight of plants. The results showed that the solid waste of essential oil from cocoa plants cocoa plants gave the highest yield on variable plant height (21 cm), number of leaves (14.50 strands), leaf area (1425 cm2), fresh weight of plants (73.35 g), root fresh weight (7.03 g) and dry weight of plants (5.05 g). The 4-week incubation treatment gave the highest yield on variable plant height (17.83 cm) and number of leaves (12.52 strands). The treatment of long incubation time with a time of eight weeks produces the highest value on variable leaf area (900.35 cm2), fresh weight of plants (42.96 g), dry weight of plants (4.97) and dry weight of plants (3.24 g). There was a significant interaction between the organic fertilizer solid waste from essential oil industry and incubation time on variables: plant height, fresh weight of plants and dry weight of plants. As for the variable number of leaves, the area of leaves and fresh weight so that there is no interaction from the provision of organic fertilizer waste extraction of essential oils and the length of fertilizer incubation.
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