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Karakter Morfologi, Fisiologi dan Hasil Tiga Varietas Kubis (Brassica oleracea L. var. capitata) Pada Tiga Perbedaan Jarak Tanam Noza, Dhea Elfira; Usmadi, Usmadi
Biofarm : Jurnal Ilmiah Pertanian Vol. 20 No. 2 (2024): BIOFARM JURNAL ILMIAH PERTANIAN
Publisher : Universitas Pekalongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31941/biofarm.v20i2.4841

ABSTRAK Optimasi pemanfaatan lahan melalui pengaturan jarak tanam yang didukung oleh adaptasi varietas yang sesuai, merupakan alternatif solusi dalam upaya meningkatkan produktivitas kubis di tengah tantangan terus terjadinya berkurangnya luas lahan pertanian dan perubahan iklim. Penelitian bertujuan mengetahui perubahan karakter morfologi, fisiologi dan hasil tiga varietas tanaman kubis pada tiga jarak tanam yang berbeda. Penelitian menggunakan pola dasar Rancangan Acak Kelompok yang terdiri atas sembilan perlakuan dengan tiga ulangan. Perlakuan berupa kombinasi varietas kubis dengan jarak tanam yang terdiri atas: V1J1 (varietas KK cross dengan jarak tanam 40 cm x 50 cm); V2J1 (varietas Summer Autumn dengan jarak tanam 40 cm x 50 cm); V3J1 (varietas Bright Top dengan jarak tanam 40 cm x 50 cm); V1J2 (varietas KK Cross dengan jarak tanam 50 cm x 50 cm); V2J2 (varietas Summer Autumn dengan jarak tanam 50 cm x 50 cm); V3J2 (varietas Bright Top dengan jarak tanam 50 cm x 50 cm); V1J3 (varietas KK Cross dengan jarak tanam 60 cm x 50 cm); V2J3 (varietas Summer Autumn dengan jarak tanam 60 cm x 50 cm) dan V3J3 (varietas Bright Top dengan jarak tanam 60 cm x 50 cm). Data hasil peneltian dianalisis menggunakan sidik ragam dan bila terdapat perbedaan nyata dilanjutkan dengan uji BNJ 5%. Hasil penelitian menunjukkan bahwa peningkatan jarak dalam baris dari 30 cm menjadi 60 cm pada jarak antar baris tanaman yang sama selebar 50 cm, tidak mengubah karakter morfologi dari ketiga varietas kubis. Perbedaan karakter fisiologi dari ketiga varietas kubis lebih didominasi oleh sifat genetis dibanding perubahan jarak tanam. Verietas KK Cross menunjukkan karakter hasil lebih baik dibanding varietas Bright Top pada jarak tanam lebar 60 cm x 50 cm.Kata kunci: Area tumbuh, Kubis, ProduktivitasABSTRACTOptimizing land use supported by adapting appropriate varieties, is an alternative solution in an effort to increase cabbage productivity amidst the on going challenges of decreasing agricultural land and climate change. Optimizing land use through plant spacing is one of the easiest forms of cultivation intensification to increase productivity. The research aims to determine changes in morphological, physiological and yield characteristics of three varieties of cabbage at three difference planting distances. The research is based on Randomized Complete Block Design pattern consisting of nine treatments with three replications. The treatments included a combination of cabbage varieties with planting distances consisting of: V1J1 (KK cross variety with a planting distance of 40 cm x 50 cm); V2J1 (Summer Autumn variety with a planting distance of 40 cm x 50 cm); V3J1 (Bright Top variety with a planting distance of 40 cm x 50 cm); V1J2 (KK Cross variety with a planting distance of 50 cm x 50 cm); V2J2 (Summer Autumn variety with a planting distance of 50 cm x 50 cm); V3J2 (Bright Top variety with a planting distance of 50 cm x 50 cm); V1J3 (KK Cross variety with a planting distance of 60 cm x 50 cm); V2J3 (Summer Autumn variety with a planting distance of 60 cm x 50 cm) and V3J3 (Bright Top variety with a planting distance of 60 cm x 50 cm). The research data obtained were analyzed using variance and if there were significant differences, it was continued with the HSD test at the 5% level. The research results showed that increasing the distance in rows from 30 cm to 60 cm with a distance between rows of the same plant of 50 cm did not change the morphological characters of the three cabbage varieties. The differences in physiological characteristics of the three cabbage varieties are more dominated by genetic characteristics than planting distance changes. The KK Cross variety shows better yield characteristics than the Bright Top variety at a wide spacing of 60 cm x 50 cm..Keywords: Growing space, Cabbage, Productivity

RESPON PERTUMBUHAN DAN HASIL SAWI HIJAU TERHADAP PENGGUNAAN KOMPOS SEBAGAI SUBSTITUSI PUPUK ANORGANIK Usmadi, Usmadi; Sulistina, .; Tanzil, Ahmad Ilham; Ristiyani, Suci
JURNAL BIOINDUSTRI (JOURNAL OF BIOINDUSTRY) Jurnal Bioindustri: Vol. 5 No. 2 (2023)
Publisher : Universitas Trilogi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31326/jbio.v5i2.1639

Increased public awareness of the importance of the availability of healthy agricultural products, including vegetables, must be supported by cultivation techniques and innovations. Cultivation of mustard greens so far still relies on the use of inorganic fertilizers as an effort to increase crop productivity. The continuous and excessive use of inorganic fertilizers not only has a negative impact on the environment but also health due to the presence of residues of hazardous materials that can be stored in plant tissues. The use of compost as a substitute for fertilizer sources in the cultivation of mustard greens is expected to reduce the negative impacts both on the environment and health. This study aimed to determine the possibility of using compost as a substitute for fertilizer in mustard green cultivation. The research is based on a Completely Randomized Design consisting of five treatments with four replications. The fertilization treatment consisted of: P1:1.4 g Urea+0.9 g SP-36+0.7 g KCl, P2:1.1 g Urea+0.7 g SP-36+0.6 g KCl+ 9 g compost, P3:0.8 g Urea+0.5 g SP-36+0.5 g KCl+18 g compost, P4:0.5 g Urea+0.3 g SP 36+0.4 g KCl +27 g compost, P5:0.2 g Urea+0.1 g SP 36+0.3 g KCl+36 g compost. The data obtained were analyzed using variance and if there were significant differences between the treatments, it was continued with the HSD test at the 5% level. The results showed that compost as a substitute for fertilizer could be applied in the cultivation of mustard greens. The addition of compost as much as 27 g/plant (3 tons/Ha) besides increasing growth is also able to increase the fresh weight of green mustard by 45,6%.

RESPON PERTUMBUHAN DAN HASIL SAWI HIJAU TERHADAP PENGGUNAAN KOMPOS SEBAGAI SUBSTITUSI PUPUK ANORGANIK Usmadi, Usmadi; Sulistina, .; Tanzil, Ahmad Ilham; Ristiyani, Suci
JURNAL BIOINDUSTRI (JOURNAL OF BIOINDUSTRY) Jurnal Bioindustri: Vol. 5 No. 2 (2023)
Publisher : Universitas Trilogi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31326/jbio.v5i2.1639

Increased public awareness of the importance of the availability of healthy agricultural products, including vegetables, must be supported by cultivation techniques and innovations. Cultivation of mustard greens so far still relies on the use of inorganic fertilizers as an effort to increase crop productivity. The continuous and excessive use of inorganic fertilizers not only has a negative impact on the environment but also health due to the presence of residues of hazardous materials that can be stored in plant tissues. The use of compost as a substitute for fertilizer sources in the cultivation of mustard greens is expected to reduce the negative impacts both on the environment and health. This study aimed to determine the possibility of using compost as a substitute for fertilizer in mustard green cultivation. The research is based on a Completely Randomized Design consisting of five treatments with four replications. The fertilization treatment consisted of: P1:1.4 g Urea+0.9 g SP-36+0.7 g KCl, P2:1.1 g Urea+0.7 g SP-36+0.6 g KCl+ 9 g compost, P3:0.8 g Urea+0.5 g SP-36+0.5 g KCl+18 g compost, P4:0.5 g Urea+0.3 g SP 36+0.4 g KCl +27 g compost, P5:0.2 g Urea+0.1 g SP 36+0.3 g KCl+36 g compost. The data obtained were analyzed using variance and if there were significant differences between the treatments, it was continued with the HSD test at the 5% level. The results showed that compost as a substitute for fertilizer could be applied in the cultivation of mustard greens. The addition of compost as much as 27 g/plant (3 tons/Ha) besides increasing growth is also able to increase the fresh weight of green mustard by 45,6%.

Aplikasi Paclobutrazol dan Pupuk Kalium terhadap Pertumbuhan dan Hasil Tanaman Jagung Manis (Zea mays saccharata Sturt) Usmadi, Usmadi; Elfrida, Teeusa Lentera; Hartatik, Sri
Jurnal Penelitian IPTEKS Vol 8, No 2 (2023): JURNAL PENELITIAN IPTEKS
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/ipteks.v8i2.17146

Produksi jagung manis di Indonesia mengalami penurunan pada tahun 2019 dan 2020. Penurunan produksi jagung dalam negeri cukup besar, hal ini disebabkan penerapan teknik budidaya yang kurang tepat. Peningkatan produksi tanaman dapat dilakukan melalui penambahan unsur hara dan zat pengatur tumbuh. Penambahan Paclobutrazol dan pupuk Kalium diharapkan dapat meningkatkan produksi jagung manis. Penelitian ini bertujuan untuk mengetahui pengaruh paclobutrazol dan pupuk kalium terhadap pertumbuhan dan hasil tanaman jagung manis. Percobaan menggunakan rancangan acak kelompok faktorial dengan faktor pertama yaitu konsentrasi paclobutrazol yakni P1: tanpa Paclobutrazol, P2: 500ppm, P3; 1000ppm. Sedangkan faktor kedua yaitu dosis pupuk kalium yang terdiri dari K1: 150kg/ha, K2; 200kg/ha, K3: 250kg/ha. Seluruh perlakuan diulang sebanyak 3 kali Hasil percobaan menunjukkan bahwa pemberian paclobutrazol dan pupuk kalium memberikan pengaruh nyata terhadap pertumbuhan dan hasil tanaman yang meliputi diameter pangkal batang, umur berbunga, panjang tongkol, berat tongkol, diameter tongkol, kandungan gula terlarut dan indeks klorofil daun. Perlakuan yang terbaik dalam percobaan ini yaitu perlakuan P3K3, paclobutrazol (1000 ppm), dan dosis kalium (250 kg/ha).

Substitusi Pupuk Anorganik Menggunakan Kasgot terhadap Pertumbuhan dan Produksi Jagung Manis Ungu (Zea mays sacharata Sturt L.) Arlianto, Irfan Sarifuddin; Usmadi, Usmadi; Muhlison, Wildan; Sholikhah, Ummi
AGRIUM: Jurnal Ilmu Pertanian Vol 28, No 1 (2025)
Publisher : UNIVERSITAS MUHAMMADIYAH SUMATERA UTARA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/agrium.v28i1.23041

Penggunaan pupuk anorganik yang masih menjadi andalan pada kegiatan budidaya jagung manis ungu, selain telah mencapai titik jenuh juga berdampak negatif terhadap kulitas tanah dan kesehatan lingkungan pertanian. Upaya mengurangi penggunaan pupuk anorganik dapat dilakukan melalui substitusi menggunakan pupuk organik, salah satunya menggunakan kasgot yang merupakan hasil biokonversi bahan organik oleh larva lalat tentara hitam. Kombinasi penggunaan pupuk anorganik dengan kasgot secara proporsional, diharapkan selain dapat memenuhi kebutuhan kesuburan kimia juga dapat memenuhi kesuburan fisik dan biologi untuk tanaman jagung manis ungu. Penelitian bertujuan untuk mengetahui proporsi pupuk anorganik dengan kasgot terhadap pertumbuhan dan hasil jagung manis ungu. Penelitian menggunakan pola dasar rancangan acak kelompok yang terdiri atas 4 perlakuan dengan 6 kali ulangan. Data dianalisis menggunakan sidik ragam dan dilanjutkan dengan uji BNJ 5%. Hasil penelitian menunjukkan bahwa substitusi pupuk anorganik menggunakan kasgot secara pemenuhan hara layak diterapkan untuk budidaya jagung manis ungu. Substitusi menggunakan kasgot sebesar 39% cenderung meningkatkan ukuran daun, berat tongkol kupas dan kadar gula reduksi biji sedang pada 59% meningkatkan kadar antosianin biji.

PELATIHAN PEMBUATAN MOL AKAR BAMBU DALAM MENDUKUNG PERTANIAN ORGANIK KEDELAI DI DESA JUBUNG KABUPATEN JEMBER Aritonang, Firman; Pakpahan, Tioma Stephani; Harsanti, Restiani Sih; Fariroh, Indri; Usmadi, Usmadi; Munandar, Denna Eriani; Sundahri, Sundahri; Slameto, Slameto
PAPUMA: Journal of Community Services Vol. 3 No. 01 (2025): April 2025
Publisher : Program Studi Agronomi Fakultas Pertanian Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/papuma.v3i01.2556

Jubung Village is the largest soybean producing area in Sukorambi District. The Farmer Group 'Tani Mulyo" experienced problems in soybean cultivation, namely soybean production which could not increase and the high price of fertilizer. The solution that can be given is the use of local microorganisms (MOL). MOL (Local Microorganisms) is a group of commonly cultivated microorganisms use in the "zero waste" concept is as a "starter" for organic composting. Materials and tools used were bamboo roots, granulated sugar, shrimp paste, rice bran, water, pan, stirrer, 20 L bucket, stove, cover and sprayer. The work program began with preparation of activities such as coordination with several stakeholders such as village officials, accompanying group lecturers, farmers and the Jubung village community. Next, socialization and practice of making local microorganisms (MOL) were carried out. This implementation is a practice of making local microorganisms (MOL) which is carried out at the home of one of the jubung farming communities. The production of local microorganisms (MOL) was accompanied by lecturers and carried out jointly with farmers. Indicators of the success of the work program which aims to develop the insight and skills of the community and farmers in improving the community economy with local microorganism entrepreneurship (MOL), and increasing the productivity of agricultural input products in Jubung village.

Response of Vermicompost and Urea Combination Fertilizer Doses on the Growth and Yield of Scallion Plants (Allium fistulosum L.) Fauziah, Fithriyatul; Setiyono, Setiyono; Usmadi, Usmadi; Purnamasari, Ika; Patricia SM, Susan Barbara; Arum, Ayu Puspita; Savitri, Dyah Ayu
International Journal on Food, Agriculture and Natural Resources Vol 5, No 1 (2024): IJ-FANRes
Publisher : Food, Agriculture and Natural Resources - NETWORKS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46676/ij-fanres.v5i1.289

Leeks (Allium fistulosum L.) are short-lived horticultural crops and have great commercial potential. The productivity of leeks in Indonesia, especially in the East Java region, is experiencing fluctuations, this is due to the problem of decreasing soil fertility. The use of inorganic fertilizers is one of the causes of decreasing soil fertility where the use of inorganic fertilizers in Indonesia reached 105.22 kg/ha, being the highest use compared to several countries in Southeast Asia. Therefore, I offer a solution to this problem, namely by combining the use of inorganic fertilizer with organic fertilizer, for this you can use urea fertilizer and vermicompost fertilizer, where vermicompost fertilizer has advantages compared to other compost fertilizers in terms of complete content starting from microorganisms, growth hormones, and nutrients. The aim of the research I conducted was to determine the interaction of applying urea fertilizer and vermicompost on the growth and yield of leek plants (Allium fistulosum L). The research was conducted at the Green House using a Completely Randomized Design (CRD) with 2 factors, each of which had 3 levels and was repeated 3 times to obtain 27 plant units. The first factor was a vermicompost dose of 0 g/polybag, 75 g/polybag, and 150 g/polybag, while the second factor was a urea dose of 0 g/polybag, 1 g/polybag, and 2 g/polybag. The experimental results showed that the best dose for the combined interaction of vermicompost and urea fertilizer treatment was 75 g/polybag vermicompost and 2 g/polybag urea to increase the number of leaves and height of leek plants.

PERANAN PEMBELAJARAN DENGAN METAFORA DALAM MENINGKATKAN PRESTASI BELAJAR MATEMATIKA SISWA Usmadi, Usmadi; Ningsih, Nova Fitria; Ergusni, Ergusni
Differential: Journal on Mathematics Education Vol. 1 No. 1 (2023): Differential: Journal on Mathematics Education
Publisher : Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/differential.v1i1.94

Pembelajaran dengan metafora merupakan pembelajaran yang mengubah konsep matematika yang bersifat abstrak menjadi konkrit melalui kegiatan menghubungkan konsep dengan materi yang sudah diketahui sebelumnya dengan kehidupan sehari-hari. Tujuan dari penelitian ini adalah untuk mendeskripsikan peranan pembelajaran dengan metafora dalam meningkatkan prestasi belajar matematika siswa. Jenis penelitian ini adalah penelitian kepustakaan (library research), sedangkan metode penelitian ini adalah teknik dokumentasi yaitu menghimpun informasi dari buku, jurnal, skripsi, tesis, dan website internet yang relevan dengan topik penelitian dengan cara membaca, memahami, dan menganalisis sumber-sumber tersebut. Sumber data yang digunakan berupa sumber data utama dan pendukung yang berasal dari penelitian sebelumnya. Hasil temuan penelitian yaitu pembelajaran dengan metafora: (1) dapat mengubah konsep matematika yang abstrak menjadi konkrit melalui kegiatan menghubungkan konsep dengan materi sebelumnya dan kehidupan nyata, (2) dapat meningkatkan kemampuan penalaran matematis siswa, (3) dapat memberikan semangat kepada siswa untuk belajar dan membuat siswa tertarik terhadap matematika, (4) secara tidak langsung siswa mengalami proses berpikir metafora melalui tahapan CREATE (Connect, Relate, Explore, Analyze, Transform, dan Experience). Berdasarkan peranan pembelajaran dengan metafora akan membuat siswa lebih mudah memahami materi pelajaran dan menyelesaikan permasalahan yang diberikan, sehingga dapat meningkatkan prestasi belajar matematika siswa.

MEDIA PEMBELAJARAN DIGITAL POCKET BOOK BERBASIS PROBLEM BASED LEARNING UNTUK PEMBELAJARAN MATEMATIKA SMA Usmadi, Usmadi; Anasthasya, Nadia; Bayu, Eka Pasca; Ergusni, Ergusni
Differential: Journal on Mathematics Education Vol. 2 No. 1 (2024): Differential: Journal on Mathematics Education
Publisher : Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/differential.v2i1.157

Tujuan dari penelitian ini adalah untuk mengembangkan media pembelajaran Digital Pocket Book berbasis Model Problem Based Learning pada pembelajaran matematika kelas XI SMA. Jenis penelitian ini adalah research and development, proses pengembangan menggunakan model pengembangan ADDIE, terdiri dari 5 tahapan, yaitu: tahap analisis, tahap perancangan, tahap pengembangan, tahap implementasi dan tahap evaluasi. Teknik pengumpulan data yaitu memberikan angket validasi produk kepada ahli materi, media, bahasa, angket praktikalitas siswa dan uji efektivitas dari soal tes hasil belajar siswa. Hasil analisis data validitas pengembangan media pembelajaran Digital Pocket Book berbasis Problem Based Learning memenuhi kriteria valid dengan persentase validitas produk sebesar 78,43%, hasil analisis data praktikalitas memperoleh persentase 83,26% dengan kategori sangat praktis, sedangkan hasil analisis data efektivitas memperoleh persentase 84,21% dengan kriteria sangat efektif. Simpulan dari hasil penelitian ini adalah media pembelajaran digital Pocket Book berbasis Problem Based Learning pada pembelajaran matematika kelas XI SMA memenuhi kriteria valid, praktis dan efektif.

PENGUJIAN PERSYARATAN ANALISIS (UJI HOMOGENITAS DAN UJI NORMALITAS) Usmadi, Usmadi
Inovasi Pendidikan Vol 7, No 1 (2020): Vol 7, No 1 (2020), Maret 2020
Publisher : FKIP UMSB

Pengujian prasyarat analisis, merupakan konsep dasar untuk menetapkan statistik uji mana yang diperlukan, apakah uji menggunakan statistik parametrik atau non parametrik. Uji prasyarat , yakni uji homogenitas variansi populasi, uji normalitas untuk sebaran data hasil penelitian. Uji homogenitas menggunakan statistik uji Harley, uji Cohran, Uji Levene, dan uji Bartlett. Sedangkan uji linearitas menggunakan statistik uji Lilliefors,dan uji Kolmogorov-Smirnov.

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