Permintaan akan jagung (Zea mays L.) yang semakin meningkat menyebabkan petani kesulitan untuk memenuhi kebutuhan pasar. Semakin langka dan tingginya harga pupuk anorganik saat ini, menimbulkan masalah sendiri bagi petani. Penggunaan bahan organik seperti pupuk hayati merupakan salah satu cara untuk mengatasi masalah di atas. Penelitian ini bertujuan untuk mengetahui (1) pengaruh pemberian pupuk kandang kambing; (2) pengaruh pemberian pupuk hayati; (3) pengaruh interaksi anatara dosis pupuk kandang kambing dan pupuk hayati dalam mempengaruhi pertumbuhan dan hasil jagung. Penelitian ini dilaksanakan di Desa Sukabanjar, Kecamatan Gedong Tataan, Kabupaten Pesawaran pada bulan Februari sampai Mei 2016.Penelitian menggunakan rancangan perlakuan berpola faktorial (5 x 2) dalam Rancangan Kelompok Teracak Sempurna (RKTS) dengan tiga ulangan dengan 10 perlakuan. Faktor pertama adalah dosisi pupuk kandang kotoran kambing (B), terdiri lima taraf yaitu : tanpa pupuk kandang (b 0 ), dosis 10 ton/ha (b 1 ), 20 ton/ha (b 2 ), 30 ton/ha (b 3 ) dan 40 ton/ha (b 4 ). Faktor kedua adalah pupuk hayati (H) terdiri atas dua taraf yaitu tanpa pupuk hayati (h 0 ) dan dengan pupuk hayati (h 1 ). Konsentrasi pupuk hayati yang digunakan adalah 10 ml/l. Jika hasil uji F nyata pada taraf 5%, selanjutnya dilakukan uji lanjut polinomial ortogonal. Hasil penelitian menunjukkan bahwa (1) Dosis pupuk kandang kambing yang diberikan pada dosis 40 ton/ha meningkatkan seluruh variabel pengamatan; (2) Aplikasi pupuk hayati memberikan pengaruh nyata terhadap seluruh variabel pengamatan; (3) Pemberian pupuk kandang kambing pada berbagai dosis dipengaruhi oleh aplikasi pupuk hayati (terjadi interaksi) pada variabel pengamatan tinggi tanaman, diameter tongkol, panjang tongkol, bobot tongkol per tanaman, dan bobot 100 butir.
Preliminary study of activated carbon from water chestnut (Eleocharis dulcis) has been done. The water chestnut plants, which were taken from Barito Kuala regency, South Kalimantan, were carbonized at 400 °C. The carbonized time were varied in 1 and 2 hours. Then the carbons were activated by KOH and H2SO4 solutions. The activated time were also varied in 1 and 2 hours. The physical-chemical properties of water chestnut charcoal, such as water content, ash content, volatile and fixed carbon values, before and after activated, were characterized. The results showed that the water content, ash content, volatile and fixed carbon values of activated carbon were in the range of 5.63-12.17%; 10.95-17.22%, 41.78-56.18% and 34.66-45.05%, respectively.
The research aims to identify structure of Na2MnPO4F/C as a sodium battery composite material has been successfully synthesized through solid state method with various carbon concetrations 0, 3, 5 and 7 wt% as conductive carbon. The source of carbon comes from citric acid (C6H8O7). The syntesized sample were characterized XRD, SEM-EDX, PSA and FTIR. X-Ray Diffraction (XRD) results show that all of samples have formed to monoclinic structure with space group P21/n and signal linked to residual carbon in not detected. The crystal size tends to decreasing with addition of carbon concentrations. The crystal size of Na2MnPO4F with 7 wt % carbon is 137,09 nm. SEM-EDX analysis shows that the higher of carbon concentration the carbon distribution tends to be more homogeneous. Base on particle size analyzers have shown that Na2MnPO4F/C particle size is getting smaller and the particle size distribution tends to be homogeneous along with the increasing of carbon concentration. Identification of the functional group with FTIR obtained Mn-O stretching, PO4 stretching, dan C-C stretching.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.