Jurnal Ilmiah Pertanian https://journal.unilak.ac.id/index.php/jip <p>Jurnal Ilmiah Pertanian (JIP) is<span style="color: #222222; font-family: arial, sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;"> an open-access </span>journal<span style="color: #222222; font-family: arial, sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">&nbsp;that publishes original research&nbsp;</span>articles on <span style="color: #222222; font-family: arial, sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;"> the advance of agriculture and the use of land resources throughout the world. JIP is a biannual publication journal, published every February and August. </span>It published electronically via the journal <a href="http://journal.unilak.ac.id/index.php/jip">website</a>.</p> <p>&nbsp;</p> <p>ISSN (Print) 1829-8346&nbsp;</p> <p>ISSN (Online) 2502-5988</p> <p>&nbsp;</p> en-US indra.purnama@unilak.ac.id (Indra Purnama) prnm_indra@yahoo.com (Indra Purnama) Fri, 26 Feb 2021 00:00:00 +0000 OJS 3.1.2.4 http://blogs.law.harvard.edu/tech/rss 60 Performance of paddy crop in swampland under organic pellet fertilization from Azolla and vermicompost https://journal.unilak.ac.id/index.php/jip/article/view/5807 <p>This study aimed to examine the effect of applying organic pellet fertilizers from vermicompost and <em>Azolla</em> using coal fly ash as an adhesive on paddy crop response in swampland. The research was performed in a pot experiment using a completely randomized factorial design with two treatment factors. The organic pellet fertilizer doses were: 0 ton ha<sup>-1</sup> (a control); 10 ton ha<sup>-1</sup>; 20 ton ha<sup>-1</sup>; and 30 ton ha<sup>-1</sup> as the first factor. In the second factor, the different NPK fertilizer dose was applied: the absence of NPK fertilizer as a control; 0.5 and 1 time of the recommended dose. The results showed that the application of organic pellet fertilizer significantly improved soil pH but not significant on soil organic C and N levels. There was tendency of increased on soil pH, C-organic, and N-total with the increased doses of organic pellet fertilizers applied. The NPK fertilizer application significantly improved plant height, tiller number and plant biomass as the dose were rised up. The organic pellet fertilizer application significantly improved plant height, number of tillers, and plant biomass. Applying organic pellet fertilizer at a dose of 10 tons ha<sup>-1</sup> should be sufficient as no further improvement with the increasing doses.</p> Agus Hermawan, Dwi Probowati Sulistyani, Bakri Copyright (c) 2021 Jurnal Ilmiah Pertanian https://creativecommons.org/licenses/by/4.0 https://journal.unilak.ac.id/index.php/jip/article/view/5807 Fri, 26 Feb 2021 00:00:00 +0000 Growth of celery (Apium graveolens L.) in the red-yellow podzolic soils as inoculated by earthworms Pontoscolex corethrurus https://journal.unilak.ac.id/index.php/jip/article/view/5742 <p>In this study, the inoculation effect of earthworms <em>Pontoscolex corethrurus</em> on celery growth (<em>Apium graveolens</em> L.) has been carried out in red-yellow podzolic (RYP) soils. The research studied in a pot experiment using a completely randomized design (CRD) with 6 (six) treatments and 3 (three) replications. One-pot consists of 4 (four) plants. The treatments carried out were as follows: I<sub>0</sub> (without inoculum of earthworm), I<sub>1</sub> (inoculum of 5 earthworms pot<sup>-1</sup>), I<sub>2</sub> (inoculum of 10 earthworms pot<sup>-1</sup>), I<sub>3</sub> (inoculum of 15 earthworms pot<sup>-1</sup>), I<sub>4</sub> (inoculum of 10 earthworms pot<sup>-1</sup>) and I<sub>5</sub> (inoculum of 25 earthworms pot<sup>-1</sup>). Observation parameters were the number of tillers clumps<sup>-1</sup>, fresh biomass clumps<sup>-1</sup> (g clump<sup>-1</sup>), and root volume (mL). The observations were statistically analyzed using variance (one-way ANOVA) and followed by the Duncan Multiple Range Test (DMRT) with a level of 5%. Treatment I<sub>5</sub> gave the best results on celery crop in all parameters, i.e., 20.33 tillers per hill; fresh biomass per clump 113.93 g; and a root volume of 10 mL. The results showed that earthworms' inoculation into RYP soils significantly affected all parameters. There was also an increase in pH in each treatment that was inoculated with earthworms.</p> Seprita Lidar, Indra Purnama Copyright (c) 2021 Jurnal Ilmiah Pertanian https://creativecommons.org/licenses/by/4.0 https://journal.unilak.ac.id/index.php/jip/article/view/5742 Fri, 26 Feb 2021 00:00:00 +0000 Monitoring of maize root growth on N, P, and K fertilization using rhizotron https://journal.unilak.ac.id/index.php/jip/article/view/5748 <p>Maize roots will show varying growth responses to the type of fertilizer given. The objective of this study was to determine the effect of N, P, and K fertilizers on the growth of maize roots and the function of the relationship between root dry weight and shoot dry weight of maize under rizhotron. The research was conducted in April - June 2019 at the screen house and Plant Laboratory, Politeknik Lamandau in Lamandau Regency. The research was conducted in rizhotron's growth medium which was arranged in a completely randomized design (CRD) with a fertilizer treatment consisting of urea (N = 200 kg ha<sup>-1</sup>), SP36 (P = 100 kg ha<sup>-1</sup>), KCl (K = 100 kg ha<sup>-1</sup>), and control (without fertilizer) with three replications. The results showed that N fertilizer was able to provide better root dry weight growth compared to P and K fertilizer, namely 2.59 g. Root dry weight has a significant effect on plant dry weight gain based on the function of y = 4.10x + 0.06 (R<sup>2</sup> = 0.96 **).</p> Fajrin Pramana Putra, Roni Ismoyojati Copyright (c) 2021 Jurnal Ilmiah Pertanian https://creativecommons.org/licenses/by/4.0 https://journal.unilak.ac.id/index.php/jip/article/view/5748 Fri, 26 Feb 2021 00:00:00 +0000 Effect of exopolysaccharide-producing Azotobacter and cow manure on nutrient uptake and root-to-shoot ratio of sorghum https://journal.unilak.ac.id/index.php/jip/article/view/5205 <p>Nitrogen-fixing <em>Azotobacter</em> synthesizes exopolysaccharide, which is important among other to improve aggregate stability and hence nutrients uptake. A pot experiment has been conducted to determine the effect of exopolysaccharide-producing <em>Azotobacter </em>and organic matter on nitrogen, phosphor, and potassium uptake by the shoot of sorghum (<em>Sorghum bicolor </em>(L.) Moench), and plant growth. The pot experiment was setup in randomized block design which test eight combination treatments of <em>Azotobacter</em> isolates (AS5, AS6, and AS5 + AS6) and organic matter application (with and without 20 t ha<sup>-1</sup> of cow manure). The result showed dual inoculation of <em>Azotobacter</em> AS5 and AS6 inoculation combined with cow manure application increased N and P uptake. The dual inoculation treatment did not affect root length; but increased the shoot height and dry weight when accompanied by the application of cow manure. The ratio of root and shoot dry weight was not influenced by single or dual <em>Azotobacter</em> inoculation with or without organic matter.</p> Reginawanti Hindersah, Anny Yuniarti, Hidiyah Ayu Ratna Ma’rufah Copyright (c) 2021 Jurnal Ilmiah Pertanian https://creativecommons.org/licenses/by/4.0 https://journal.unilak.ac.id/index.php/jip/article/view/5205 Fri, 26 Feb 2021 00:00:00 +0000 Perbandingan tumpukan beras Bulog terhadap populasi kutu beras (Sitophilus oryzae L.) dan mutu beras selama masa simpan di Kabupaten Jayawijaya https://journal.unilak.ac.id/index.php/jip/article/view/5191 <p>This study was aimed to find out the effect of rice pile on pest population and the quality of rice during storage; find out which pile of Bulog rice produces the populations of Rice Weevil pest the most during storage; find out which pile of Bulog rice that produces the best quality during storage. This research was conducted in the laboratory of STIPER Petra Baliem Wamena and the Faculty of Agricultural, Universitas Gadjah Mada Yogyakarta. The observation was done in 1 year, from March 2019 to March 2020. The materials and tools used are Bulog rice, rice weevil pest, cartons, plastics, digital scales, stationary, and oven. The research method applies a Completely Randomized Design. The treatments are G1: 15 Bulog rice pile; G2: 20 Bulog rice pile; G3: 25 Bulog rice pile. The results showed that: 1) The rice pile affected the pest population and the quality of rice during storage; 2) G3 condition produced more rice weevil population than others; 3) G1 condition produced the highest final weight of rice, the lowest broken rice, the highest intact rice, the lowest water content, and ash content, and the highest fat content, protein content, and carbohydrate content.</p> Anti Uni Mahanani, Inrianti Copyright (c) 2021 Jurnal Ilmiah Pertanian https://creativecommons.org/licenses/by/4.0 https://journal.unilak.ac.id/index.php/jip/article/view/5191 Fri, 26 Feb 2021 00:00:00 +0000 Pembuatan nata de cassava dari limbah cair tapioka dengan menggunakan sumber nitrogen alami yang berbeda https://journal.unilak.ac.id/index.php/jip/article/view/6208 <p>Liquid waste from processing cassava into tapioca starch is carbohydrate-rich waste and can be used as a growth medium for the <em>Acetobacter xylinum</em>, which is useful in producing one of the fermentation products, i.e. <em>nata</em>. Several factors influence the production of <em>nata</em>, one of them is the addition of nutrients in the form of nitrogen in the fermentation medium. The nitrogen source used is usually from inorganic fertilizers, such as urea and ammonium sulfate. In this study, fermentation of tapioca starch wastewater was developed, using a natural sources of nitrogen derived from soybean and green bean sprouts extract. <em>Nata</em> was made by treating various concentrations of soybean and green bean sprouts extract (3%, 4%, 5%) and fermentation time (6 days, 7 days, 8 days, 9 days and 10 days). The characteristics of the <em>nata</em> product were seen from the thickness and yield of the <em>nata</em>. The <em>nata de cassava</em> product's optimum results were tested for thickness, yield, and moisture content. The results showed that the best type of natural nitrogen source was soybean sprouts extract 5%, fermentation time of 10 days with a thickness of 0.55 cm, the water content of 97.58%, and yield of 63.09%</p> Cory Dian Alfarisi, Yelmida, Ida Zahrina, Anisa Mutamima Copyright (c) 2021 Jurnal Ilmiah Pertanian https://creativecommons.org/licenses/by/4.0 https://journal.unilak.ac.id/index.php/jip/article/view/6208 Fri, 26 Feb 2021 00:00:00 +0000