GROWTH AND PRODUCTION OF Piper sarmentosum Roxb. ex Hunter IN POT WITH DIFFERENT GROWING MEDIA

Piper sarmentosum (karuk) dimanfaatkan untuk masakan tradisional; namun tanaman ini juga berpotensi sebagai tanaman obat. Informasi tentang budidaya tanaman P. sarmentosum masih terbatas, oleh karena itu kajian ini diawali dengan pemilihan media tanam yang sesuai. Percobaan menggunakan rancangan acak kelompok lengkap satu faktor dengan perlakuan jenis media yaitu tanah saja, tanah+pasir (3:1, v/v), tanah+arang sekam (3:1, v.v), dan tanah+pupuk kandang sapi (3:1, v/v). Setiap perlakuan diulang 4 kali dan masing-masing terdiri atas 5 tanaman. Analisis data menggunakan sidik ragam. Bahan tanaman berupa stek plagiotrop dengan 3 buku dan polybag warna hitam sebagai wadah. Pupuk anorganik diberikan pada semua perlakuan dengan dosis setara pupuk majemuk N-P-K-Mg 12:12:17:2. Hasil percobaan menunjukkan bahwa perbedaan media mempengaruhi hampir semua peubah yang diamati. Pemberian pupuk kandang sapi menghasilkan keragaan dan produksi tanaman terbaik (ditunjukkan dengan tajuk dan akar yang lebih lebat serta daun yang lebih hijau dibandingkan tanaman yang mendapat perlakukan lainnya). Meskipun tidak nyata, ada kecenderungan bahwa pertumbuhan tanaman karuk lebih baik pada media tanah saja dibandingkan pada media dengan penambahan pasir atau arang sekam.Kata kunci: pupuk kandang, pot, sayuran fungsional, piperaceae, arang seka

Relay-cropping soybean-maize in saturated soil culture increases efficiency of land use and nitrogen fertilizer

Relay-cropping in saturated soil cultivation could increase land efficiency, but its effect on land use and nitrogen fertilizer efficiency is unclear. The research objective was to evaluate the land productivity of the relay-cropping system by calculating the land equivalent ratio (LER) and the effectiveness of nitrogen fertilizer, and by determining the effect of previous soybean biomass. The experiment was arranged in a three-factor randomized complete block design. The first factor was the cropping patterns of soybean and maize, i.e., relay-cropping soybean-maize and maize monoculture. The second factor was the maize varieties, i.e., Pioneer 27 and Sukmaraga. The third factor was the application of N fertilizer with 4 doses: 0, 50, 100, and 150 kg ha-1. The results showed that the application of soybean biomass increased maize yield by 7.24%. Pioneer 27 produced a higher yield than Sukmaraga, and the dose of N fertilizer of 150 kg ha-1 resulted in the highest yield of 7.50 tons ha-1. The highest LER of 1.85% was achieved in the relay-cropping by applying N fertilizer 150 kg ha-1. The experiment concludes relay-cropping after soybean save land by about 85% and save N fertilizer by 33.3%. The reduction of N fertilizer application by 33.3% (100 kg N ha-1) reduced corn cob productivity by 13.3%, and is not significantly different from 150 kg N ha-1.      Keywords: chlorophyll, LER, plant residueRelay-cropping in saturated soil cultivation could increase land efficiency, but its effect on land use and nitrogen fertilizer efficiency is unclear. The research objective was to evaluate the land productivity of the relay-cropping system by calculating the land equivalent ratio (LER) and the effectiveness of nitrogen fertilizer, and by determining the effect of previous soybean biomass. The experiment was arranged in a three-factor randomized complete block design. The first factor was the cropping patterns of soybean and maize, i.e., relay-cropping soybean-maize and maize monoculture. The second factor was the maize varieties, i.e., Pioneer 27 and Sukmaraga. The third factor was the application of N fertilizer with 4 doses: 0, 50, 100, and 150 kg ha-1. The results showed that the application of soybean biomass increased maize yield by 7.24%. Pioneer 27 produced a higher yield than Sukmaraga, and the dose of N fertilizer of 150 kg ha-1 resulted in the highest yield of 7.50 tons ha-1. The highest LER of 2.18% was achieved in the relay-cropping without applying follow-up N fertilizer (control). The experiment concludes relay-cropping after soybean save land by about 118% and save N fertilizer by 33.3%. The reduction of N fertilizer application by 33.3% (100 kg N ha-1) reduced corn cob productivity by 13.3%, and is not significantly different from 150 kg N ha-1.      Keywords: chlorophyll, LER, plant residu

Pengaruh Pupuk Kandang Ayam dan Pupuk Hijau Calopogonium Mucunoides terhadap Pertumbuhan dan Produksi Kedelai Panen Muda yang Dibudidayakan secara Organik

The objective of the study was to investigate the effect of chicken manure and green manure Calopogonium mucunoides on the growth and production of vegetable soybean under organic farming system. The study was conducted at IPB research station, Leuwikopo, Darmaga, Bogor from June 2004 to March 2005. The experiment used split plot design with chicken manure dosages (0 and 10 ton/ha) as main plots and seed of green manure dosages (0, 7.5, 15, and 30 ton/ha) as sub plots. Chicken manure significantly resulted in better agronomic characters compared to that of without chicken manure. Green manure significantly increased plant height on 4 to 7 weeks after planting (WAP), number of leaves on 6 WAP. Interaction between chicken manure and green manure significantly influenced fresh weight of root nodule and 100 seeds. Fresh weight of 100 seeds was the highest with the application of either 10 ton chicken manure/ha or 15 kg seed of green manure/ha. Except plant height and number of leaves, generally growth and production of soybean under organic farming system were better than those under conventional farmin

ANALISIS BENTUK LAPORAN KEUANGAN DAN EFEKTIVITAS LAPORAN KEUANGAN PADA UMKM (Studi Kasus Rumah Makan Nur Desa Sei Rumbia)

Penelitian ini bertujuan untuk Untuk mengetahui bentuk-bentuk penyajian laporan keuangan pada Usaha Mikro, Kecil dan Menengah di Rumah Makan Nur Desa Sei Rumbia dan mengetahui efektivitas laporan keuangan pada Usaha Mikro, Kecil dan Menengah pada Rumah Makan Nur Desa Sei Rumbia. Dalam penelitian ini, jenis penelitian yang digunakan adalah penelitian Kualitatif, teknik pengumpulan data yang digunakan observasi dan wawancara. Bentuk Laporan keuangan yang digunakan oleh UMKM Rumah Makan Nur Desa Sei Rumbia ini menggunakan bentuk Laporan Bisnis dimana pada laporan ini hanya didasari dengan pemahaman pemilik UMKM sendiri yang menurutnya benar dan mudah untuk memahami perkembangan usaha yang dimilikinya, sedangkan Efektivitas Laporan keuangan yang telah dibuat oleh UMKM Rumah Makan Nur Desa Sei Rumbia menurut pemilik rumah makan ini sudah efektif artinya tujuan mereka membuat laporan keuangan telah tercapai yaitu informasi yang ingin didapatkan dari laporan keuangan yang telah dibuat telah dicapai

The Study of Organic Fertilizers Application on Two Soybean Varieties in Organic Saturated Soil Culture

Indonesia is facing soybean shortage and the low productivity of soybean production from decreasing acreage. Saturated soil culture (SSC) could be one of the solutions for marginal land with drainage problem. Saturated soil culture is cultivation technology that gives continuous irrigation and maintains water depth constantly and makes soil layer in saturated condition. Farmers can use on-farm inputs that are normally available at the production site. An organic farming system may be able to ensure local and regional food security through continuous production. The study was conducted at Cikarawang Experimental Station of Bogor Agricultural University, Indonesia, from December 2009 to February 2011. The objective of the research was to determine the influence of organic fertilizer application on the productivity of two varieties of soybean, “Anjasmoro” and “Wilis”,    in organic saturated soil culture conducted in two cropping seasons. Prior to the experiment all plots were applied with 2 ton.ha-1 of dolomite, 2 ton.ha-1 of rice hull ash, and 10 ton.ha-1 of chicken manure. The experiment of the first season used split plot design with six replications. The main-plot was organic fertilizer that consisted of chicken manure only (20 ton.ha-1), chicken manure (10 t.ha-1) + Centrosema pubescens (4.2 t.ha-1), chicken manure (10 ton.ha-1) + Tithonia diversifolia (4.2 t.ha-1). The sub-plot was soybean varieties “Anjasmoro” and “Wilis”. The soybean productivity was not affected by the application of organic fertilizers. “Willis” productivity (1.98 t.ha-1) was higher than “Anjasmoro” (1.80 t.ha-1). The experiment of second season used split-split plot design with three replications. The main-plot consisted of 50 and 100% fertilizer rate of the first cropping season; the sub-plot was the same types of organic fertilizer with soybean varieties as sub-sub-plot. Rate of fertilizer, types of organic fertilizer and soybean variety did not affect productivity. Application of 50 and 100% rate of fertilizer in the second season produced 2.41 and 2.55 t.ha-1 of dry seeds, respectively. Soybean plants treated with chicken manure, green manure from C. pubescens and T. diversifolia produced 2.45, 2.50 and 2.49 t.ha-1 of dry seeds, respectively. “Anjasmoro” and “Wilis” produced 2.50 and 2.45 t.ha-1 of dry seeds, respectively. Productivity in the second season was 26.26-36.61% higher than those of the first cropping season

Determination of the Optimum Rate of N Fertilizers with Addition of Goat Manure for Production of Cowpea (Vigna unguiculata [L.] Walp)

Cowpea (Vigna unguiculata L. Walp) is one of the potential substitutes of soybean due to its similar nutritional content. This study aims to determine the optimum rate of N fertilizer for the production of cowpea, and to determine the effects of the interaction between N fertilizer rates and goat manure application on cowpea production. The experiment was organized in a split-plot with a complete randomized block design with three replications. The main plot was goat manure, i.e. 0 and 5 tons.ha-1; the sub-plot was nitrogen fertilizer with five rates (0, 50, 100, 150, and 200% of the recommended rate), i.e. 0, 22.5, 45, 67.5, and 90 kg N.ha-1. Application of N fertilizer reduced the 100-seed weight and slightly reduced cowpea yield and yield components. Application of goat manure increased seed dry weight per plant, number of pods per plant, dry pod weight per plant, seed dry weight per m2, productivity, 100-seed weight, and the harvest index. There was no significant interaction between goat manure and different rates of nitrogen in affecting cowpea growth

Respon Morfologi dan Fisiologi Lima Varietas Padi pada Pemberian Pupuk Organik Diperkaya Mikroba

Pupuk organik diperkaya mikroba sebagai sumber bahan organik tanah berperan menjaga kesuburan lahan dan produktivitas tanaman. Beragam varietas memiliki respon yang berbeda pada pemupukan organik. Penelitian ini bertujuan mempelajari respon morfologi dan fisiologi lima varietas padi pada pemberian pupuk organik diperkaya mikroba. Percobaan dilakukan pada bulan Juli 2020 sampai dengan Januari 2021 di Kebun Percobaan Sawah Baru, Fakultas Pertanian, Institut Pertanian Bogor. Percobaan dilakukan dalam rancangan petak terbagi dengan petak utama adalah empat dosis pupuk organik diperkaya mikroba yaitu 0, 10, 20, dan 30 ton ha-1 dan anak petak adalah lima varietas padi yaitu IPB 3S (padi tipe baru), Inpari 24 (inbrida beras merah), Hipa 18 (hibrida), Inpari 32 (varietas unggul baru), dan Tarabas (japonica). Hasil penelitian menunjukkan aplikasi pupuk organik diperkaya mikroba dapat meningkatkan tinggi tanaman, jumlah anakan, bobot kering akar, bobot kering tajuk, kehijauan daun, jumlah gabah total per malai, dan anakan produktif. Produktivitas gabah yang dihasilkan setelah pemberian 10 hingga 30 ton ha-1 pupuk organik diperkaya mikroba meningkat sebesar 12.91% hingga 32.5%. Aplikasi pupuk organik diperkaya mikroba hingga 30 ton ha-1 masih dapat meningkatkan produktivitas gabah per hektar, sehingga dosis optimal penggunaan pupuk organik diperkaya mikroba belum dapat ditentukan. Kata kunci: hibrida, kehijauan daun, mikroba, serapan hara, varietas unggul baruMicrobial enriched organic fertilizer as a source of soil organic matter plays a role in soil fertility and crop productivity. Various varieties have different responses to organic fertilization. This research was to determine the morphological and physiological responses of five rice varieties to microbial-enriched organic fertilizer treatments. The experiment was conducted from July 2020 to January 2021 at Sawah Baru Field, Faculty of Agriculture, IPB University. The experiment used a split-plot design with the main plot being four doses of microbial-enriched organic fertilizer, namely 0, 10, 20, and 30 tons ha-1 and the subplots were five rice varieties, namely IPB 3S, Inpari 24, Hipa 18, Inpari 32, and Tarabas. The results showed that microbial-enriched organic fertilizer application increased plant height, number of tillers, root dry weight, shoot dry weight, greenish of leaf, total grain content, and productive tillers. The application of organic fertilizer from 10 to 30 tons ha-1 resulted in higher dry grain yields per hectare than control by 12.91% to 32.5%. The application of microbial-enriched organic fertilizer up to 30 tons ha-1 still increase grain per hectare productivity, so the optimum dose of microbial-enriched organic fertilizer can not be determined yet. Keywords: greenish of leaf, hybrid, high yielding varieties, microbes, nutrient uptak

DESKRIPSI PENGETAHUAN ALAT PRAKTIKUM KIMIA DAN KEMAMPUAN PSIKOMOTORIK SISWA MAN 1 PONTIANAK

AbstractThe importance of knowledge of laboratory practicum equipment for labor safety and knowledge of the tools that affect the students psychomotor ability and the implementation of the practicum that requires good of the toolsl to facilitate the lab activities then conducted research to know the knowledge of chemistry practicum and psychomotor ability of students MAN 1 Pontianak . This study aim to described the knowledge of students 'chemical practicum tools and to describe students' psychomotor abilities. The research method used in this research is descriptive method. The sample selected  using purposive random sampling technique that is class XI MIPA 3. The data collection tool used is a matter of chemistry practicum knowledge test and student psychomotor ability assessment sheet. Based on the result of the research, it is found that student’s knowledge about chemistry laboratory equipment has average value 74. This value indicates that student succeed with category Good. Psychomotor ability of student to the tools and glassware of chemistry laboratory has the average value of 83. The value indicates that students have psychomotor ability with Good categoryKeywords:   Knowladge of Practicum Tools, Psychomotor Ability, Solvent making and dilution.

Pengaruh Pupuk Kandang Ayam dan Pupuk Hijau Calopogonium mucunoides Terhadap Pertumbuhan dan Produksi Kedelai Panen Muda yang Dibudidayakan Secara Organik

The objective of the study was to investigate the effect of chicken manure and green manure Calopogonium mucunoides on the growth and production of vegetable soybean under organic farming system. The study was conducted at IPB research station, Leuwikopo, Darmaga, Bogor from June 2004 to March 2005.  The experiment used split plot design with chicken manure dosages (0 and 10 ton/ha) as main plots and seed of green manure dosages (0, 7.5, 15, and 30 ton/ha) as sub plots. Chicken manure significantly resulted in better agronomic characters compared to that of without chicken manure. Green manure significantly increased plant height on 4 to 7 weeks after planting (WAP), number of leaves on 6 WAP. Interaction between chicken manure and green manure significantly influenced fresh weight of root nodule and 100 seeds. Fresh weight of 100 seeds was the highest with the application of either 10 ton chicken manure/ha or 15 kg seed of green manure/ha. Except plant height and number of leaves, generally growth and production of soybean under organic farming system were better than those under conventional farming   Key words: Vegetable soybean, organic farming, chicken manure, green manure, Calopogonium mucunoide

Budidaya Padi Organik dengan Waktu Aplikasi Pupuk Kandang yang Berbeda dan Pemberian Pupuk Hayati

Percobaan dilaksanakan di Cikarawang, Dramaga, Bogor dari bulan November 2012 hingga Maret 2013. Penelitian ini bertujuan untuk mengetahui waktu yang paling tepat dalam pemberian pupuk kandang dan pemberian pupuk hayati. Percobaan ini menggunakan rancangan percobaan secara split plot dan rancangan lingkungannya adalah Rancangan Kelompok Lengkap, terdiri atas 2 faktor dan 4 ulangan. Faktor pertama, sebagai anak petak, adalah waktu aplikasi pupuk kandang ayam dengan 4 perlakuan yaitu, aplikasi pupuk kandang 10 ton/ha yang diberikan saat 2 minggu sebelum tanam, 10 ton/ha yang diberikan saat 4 minggu setelah tanam, 10 ton/ha yang diberikan saat 6 minggu setelah tanam, dan aplikasi bertahap 5 ton/ha yang diberikan saat 2 minggu sebelum tanam dan 5 ton/ha saat 4 minggu setelah tanam. Faktor ke-2, sebagai petak utama, adalah pemberian pupuk hayati dengan 2 perlakuan (dengan dan tanpa pupuk hayati). Produktivitas padi paling tinggi (5.04 ton GKG/ha) diperoleh dari perlakuan aplikasi bertahap 5 ton pupuk kandang /ha saat 2 minggu sebelum tanam dan 5 ton pupuk kandang /ha saat 4 minggu setelah tanam dengan tambahan pupuk hayati. Produktivitas tersebut tidak berbeda nyata dengan 4.72 ton GKG/ha akibat aplikasi 10 ton pupuk kandang/ha pada 2 minggu sebelum tanam, tanpa pupuk hayati