RESPON PERTUMBUHAN VEGETATIF TOMAT (Lycopersicum esculentum MILL.) TERHADAP APLIKASI PUPUK ORGANIK CAIR DAN PUPUK ANORGANIK

Tomatoes are one of the horticultural products that are widely used for household consumption and industrial raw materials. Organic cultivation of plants by utilizing natural materials such as the application of biofertilizers or biological fertilizers is an alternative that can be applied, because in addition to helping restore soil fertility. This study aims to determine the growth response of three varieties of organically cultivated tomato due to the application of biofertilizer and to determine the substitution of organic fertilizer in culture. The design used in this study was a Randomized Block Design (RAK). The treatments were arranged in a factorial manner with four replications. The first factor was 3 cauliflower cultivars consisting of Shinta, Jalu, and Karunia. The second factor is 100% chemical fertilizer (P0), 75% chemical fertilizer + 25% POC concentration (P1), 50% chemical fertilizer + 25% POC concentration (P2), 25% chemical fertilizer + 25% POC concentration (P3), and 100% POC with a concentration of 25% (P4), so there were 15 treatments with 3 replications. The data obtained were analyzed using the F test, if it was real, it was continued with the Least Significant Difference (BNT) test at the 5% level. Data analysis using STAR software. The results of this study indicate that the application of organic fertilizer has an effect on plant height and number of leaves.  IntisariTomat merupakan salah produk hortikultura yang bayak dimnafaatkan baik konsumsi rumah tangga maupun bahan baku industri. Budidaya tanaman secara organik dengan memanfaatkan bahan-bahan alami seperti aplikasi biofertilizer atau pupuk hayati merupakan salah satu alternatif yang dapat diterapkan, karena selain dapat membantu mengembalikan kesuburan tanah. Penelitian ini bertujuan untuk mengetahui respon pertumbuhan tiga vaerietas tomat yang dibudidayakan secara organik akibat aplikasi biofertilizer dan mengetahui subtitusi pupuk organic dalam budaiay. Rancangan yang digunakan dalam penelitian ini adalah Rancangan Acak Kelompok (RAK). Perlakuan disusun secara faktorial dengan empat ulangan. Faktor pertama yaitu 3 kultivar bunga kol yang terdiri dari Shinta, Jalu, dan Karunia. Faktor kedua yaitu yaitu 100% pupuk kimia (P0), 75% pupuk kimia+POC konsentrasi 25% (P1), 50% pupuk kimia+POC konsentrasi 25% (P2), 25% pupuk kimia+POC konsentrasi 25% (P3), dan 100% POC konsentrasi 25% (P4), sehingga terdapat 15 perlakuan dengan 3 ulangan. Data yang diperoleh dianalisis dengan menggunakan uji F, jika nyata dilanjutkan dengan uji Beda Nyata Terkecil (BNT) pada taraf 5%. Analisis data dengan menggunakan software STATISTIX. Hasil penelitian ini menunjukkan bahwa pemberian pupuk organik berpengaruh terhadap tinggi tanaman dan jumlah daun serta penggunaan pupuk organik belum mampu untuk menggantikan pupuk anorganik

Evaluasi Daya Hasil Lima Varietas Cabai (Capsicum annuum L.) dengan Penggunaan Mulsa Plastik dan Paranet Saat Transplanting

Demand for chili at certain times is quite high, but it is not always balanced with the amount of production. This resulted in the price of chili jumping sharply. This study aims to (1) evaluate the yield of five chili varieties’s power using mulch and without mulch, (2) to find out the growth power of five chili varieties after transplanting using 40% paranet and withoutparanet. The study was arranged in factorial (3 factors) with a randomized block design environment. As the first factor are five chili varieties, namely Columbus, Arimbi, Lado, Ferosa, TM 999. The second factor is the use of plastic mulch, which is without mulch and using mulch. The third factor is the use of paranet when transplanting, i.e. without paranet and using paranet. The treatment combination was repeated 3 times. The results showed the highest varieties of fruit weights per plant were Columbus (622 g), followed by Arimbi (391 g), Lado (324 g), TM 999 (126 g), and Ferosa (65 g). The use of 40% paranet when transplanting on beds using black silver plastic mulch can reduce seedling mortality in the field to 46%. The use of black silver and paranet plastic mulch when transplanting can provide the highest fruit weight. Keywords: mulch, paranet, transplanting, yiel

Kultur Embrio Kelapa Kopyor Menggunakan Beberapa Konsentrasi BA Dan Air Kelapa

Coconut Kopyor is an abnormal fruit, the ordinary coconut flesh is attached to the shell and separated from coconut water while Coconut Kopyor, fruit flesh is not attached to the shell but is mixed with coconut water. Kopyor coconut cannot be used as a seed (seed). The growth of kopyor coconut embryos can only be done in a laboratory with embryo culture technology. Embryo culture is the only way to produce true to type coconut kopyor seeds that can produce 80% kopyor coconut in one kopyor coconut plant, kopyor coconut seedlings produced can support government programs in increasing the productivity of kopyor coconut through the provision of quality seeds. Research on kopyor coconut embryo culture was carried out at the Laboratory of Tissue Culture at Lampung State Polytechnic. The experiment was carried out using a RAL, with 15 treatment combinations of BA media formulations (0, 2, and 4) with coconut water (0 ml / l, 100, 150, 200, 250 ml / l). The observed variables were the percentage of embryos sprouting, when the shoot appeared, shoot height, number of roots, and number of leaves. The results showed that the use of BA 4 mg / l without the addition of coconut water increased the percentage of sprouts, faster time for shoots, and highest shoot height.    Kelapa kopyor merupakan buah abnormal, kelapa biasa daging buahnya melekat pada tempurung dan terpisah dari air kelapa sedangkan kelapa kopyor, daging buah tidak melekat pada tempurung melainkan tercampur pada air kelapa. Kelapa kopyor tidak bisa dijadikan benih (bibit). Penumbuhan embrio kelapa kopyor hanya bisa dilakukan dalam laboratorium dengan teknologi embrio kultur. Kultur embrio merupakan satu-satunya cara untuk menghasilkan bibit kelapa kopyor true to type yang dapat menghasilkan 80% buah kelapa kopyor dalam satu tanaman kelapa kopyor, bibit kelapa kopyor yang dihasilkan dapat mendukung program pemerintah dalam peningkatan produktivitas kelapa kopyor melalui penyediaan bibit yang berkualitas. Penelitian kultur embrio kelapa kopyor dilakukan di Laboratorium Kultur Jaringan Politeknik Negeri Lampung.  Percobaan dilaksanakan rancangan acak lengkap,  dengan 15 kombinasi perlakuan formulasi media BA (0, 2, dan 4) dengan air kelapa (0 ml/l, 100, 150, 200, 250 ml/l).  Peubah yang diamati persentase embrio bertunas, waktu muncul tunas dan tinggi tunas. Hasil penelitian menunjukkan bahwa penggunaan BA 4 mg/l tanpa penambahan air kelapa meningkatkan persentase daya kecambah, waktu muncul tunas lebih cepat, dan tinggi tunas tertinggi

Pengaruh Aplikasi Paclobutrazol dan KNO3 Terhadap Pertumbuhan dan Pembungaan Anggrek Tebu (Grammatophyllum speciosum blume)

The Grammatophyllum speciosum is a rare orchid and it is protected. It has a big clump, with the numbers of buds about 50-100 in each stem and its flower has yellow color with red brownish spots. The sugarcane orchid is very good to be used for the parent in producing hybrid orchid, however Grammatophyllum speciosum is very difficult to bloom, so that it requires a flowering induction. The objective of this research was to find out whether the paclobutrazol and KNO3 application can accelerate the flowering of Grammatophyllum speciosum. This research used completely randomized design with some factorials. The first factor was the concentrations of paclobutrazol of 0 mg.1-1, 1000 mg.1-1, 2000 mg.1-1, and 3000 mg.1-1. The second factor was the concentrations of KNO3 of 0 mg.1-1, 500 mg.1-1, 1000 mg.1-1, and 2000 mg.1-1. Each treatment combination was repeated three times. The treatment application was started from the 1 week orchid after the orchid was moved from one pod to another. The paclobutrazol spraying was conducted 4 times in 2 weeks interval, and KNO3 spraying was conducted 8 times in 1 week interval. The observation was made a day before application and 1 month after application. Variables to observe included numbers of vegetation, buds, vegetation height, bulb stem height, bud height, stem circumference, and numbers of leafs. The research result showed that the paclobutraziol and KNO3 applications were not able to induce flowering of Grammatophyllum speciosum. The treatment with 3000 mg.1-1 paclobutrazol was able to improve the stem circumference. Keywords : growth, flowering, Grammatophyllum speciosum, paclobutrazol, KNO3

Pengaruh Ukuran dan Vernalisasi Umbi Terhadap Umur Berbunga dan Kualitas Bunga Sedap Malam (Polianthes tuberose L.)

Tuberose Flower (Polianthes tuberose L.) is an ornamental plant from Mexico, which is widely cultivated as cut flowers. The demand of consumer is increasing especially on public holidays, therefore to produce large quantities of cut flowers, a large number of seeds are needed. This researchaims to determine the difference in bulb size and vernalization of tubers for growth, age of flowering and the quality of the tuberose flowers. The research was conducted at Lampung State Polytechnic's land in February 2017 - February 2018, using Randomized Block Design (RBD) with two factors. The first factor is bulb size, diameter small (0,8 – 1 cm), medium (1,1 – 1,3 cm) and large (1,4 – 1,6 cm). The second factor is vernalization treatment; by vernalization (temperature ± 5 – 8 ºC) for 3 months, and without vernalization. Each treatment was repeated three times. Data were analyzed using analysis of variance, the difference in means value was tested using the Duncan Multiple Range Test at a significant level of 5%. The result showed that the medium sized bulb gave the highest of plant 36,42 cm. The highest number of leaves was obtained from the large sized bulb 18,15 leaves. Large sized bulb could accelerate the age of appearance of stalk (26,55 MST) and harvesting flowers (31,05 MST). Large sized bulb have the highest number of seedlings, that is 12,17 tubers. Vernalization doesn’t affect the tubers for growth, age of flowering and the quality of the tuberose flowers. Keywords: Poliantes tuberose, Tuber size, and Vernalization

ANALISA APLIKASI PEMBENAH TANAH ORGANIK DAN ANORGANIK TERHADAP PERTUMBUHAN DAN PRODUKSI KEDELAI (Glycine max L.)

As a crucial aspect of domestic food security, soybean production in Indonesia depends on imported resources. The productivity of soybeans exhibits variability attributed to diverse factors, including climate change (particularly water availability), seed quality, soil fertility, and pest infestations. Soil conditions characterized by adequate water retention and nutrient availability are conducive to optimal soybean yield. Conversely, suboptimal soil conditions impede nutrient and water absorption, thereby limiting production potential. This research aimed to evaluate the vegetative and generative growth response of soybeans to soil amendments, specifically compost, zeolite, and dolomite. This research was conducted between August and November 2023 at the Seed Teaching Farm, Politeknik Negeri Lampung. The research was arranged in a randomized complete block design, with single-factor treatments applied to experimental units. Each treatment was replicated four times, and each replication consisted of three plant samples. The treatments that were used were control (P0), zeolite application at 5 t/ha (P1), dolomite application at 10 t/ha (P2), and compost application at 15 t/ha (P3). Analysis of variance was conducted, then followed by an HSD test at a significance level of 5% and correlation analysis. The results of this research indicate significant responses of soybean growth and yield to the applied soil amendments and among these, compost soil amendment emerges as the most suitable for enhancing soybean production

Inventarisasi Hama, Penyakit, dan Artopoda Predator pada Tanaman Pohpohan (Pilea trinervia) pada Berbagai Naungan

Tanaman pohpohan (Pilea trinervia) belum dikenal oleh masyarakat Lampung. Tanaman ini dikonsumsi sebagai sayuran segar (lalapan) dan mengandung senyawa sekunder yang baik bagi kesehatan. Tanaman ini memiliki potensi untuk dibudidayakan didaerah Lampung. Masih sedikit informasi tentang hama, penyakit dan arthropoda pada budidaya tanaman pohpohan. Penelitian ini bertujuan untuk melakukan infentarisasi hama, penyakit dan artropoda predator pada budidaya tanaman pohpohan di daerah Lampung. Penelitian ini menggunakan metode observasi. Pengambilan sampel dilakukan dengan purposive sampling. Budidaya tanaman dilakukan dengan naungan N1 (60%), N2 (70%), N3 (75%), N4 (90%), dan N0 tanpa naungan. Polibag yang digunakan berukuran 40 x 60 cm dengan media tanam berupa tanah top soil yang dicampur pupuk kompos kandang dengan perbandingan 3:1.  Pengamatan dilakukan dengan mengamati jenis artropoda baik hama ataupun predator dan penyakit yang menyerang sebanyak 10 tanaman pada setiap perlakuan. Hasil pengamatan menunjukkan bahwa populasi hama ada pada pengamatan setelah dua minggu. Hama belalang (Orthoptera; Acriididae) ditemukan pada perlakuan N1, N2, N3, N4, dan N0. Hama Ulat kantung (Lepidoptera; Psychidae) pada perlakuan N2 saja dan pada perlakuan N4 ditemukan populasi hama belalang dan kutu putih dompolan (Hemiptera; Pseudococcidae). Penyakigt yang menyerang tanaman pohpohan adalah penyakit antraknose yang disebabkan oleh patogen Colletotrichum gloesporioides yang mulai menginfeksi sejak tanaman dipembibitan. Selain hama dan penyakit pada tanaman pohpohan, beberapa artropoda predator yang ditemukan adalah laba-laba (Arachnida; Oxyophidae dan Lycosidae), belalang predator (Orthoptera; Tettigonidae), dan semut (Hymenoptera; Formicidae)

Adaptasi Tanaman Pohpohan (Pilea trinervia Wright) Pada Berbagai Taraf Naungan

Sayuran indigenous yang telah dimanfaatkan oleh masyarakat sebagai bahan pangan dan kesehatan karena mengandung zat gizi yang sangat bermanfaat bagi tubuh seperti vitamin, mineral, dan serat. Salah sayu daerah yang banyak mengembangkan sayuran indigenous adalah Jawa Barat. Interaksi dengan tanaman sayuran indigenous seperti pohpohan menunjukkan bahwa masyarakat peduli terhadap kesehatan. Kemampuan adaptasinya yang luas dan tingginya kandungan nilai gizi membuat tanaman ini layak untuk coba dikembangkan di daerah lain seperti di Lampung. Penelitian ini bertujuan untuk mengetahui kemampuan adaptasi tanaman pohpohan asal Jawa Barat didaerah Lampung. Penelitian dilakukan di Politeknik Negeri Lampung mulai Mei hingga September 2019. Percobaan disusun menggunakan RKTS dengan 5 perlakuan dan 3 ulangan. Perlakuan terdiri dari berbagai tingkat naungan antara lain : N0 (tanpa naungan), N1 (naungan 60%), N2 (naungan 70%), N3 (naungan 75%) dan N4 (naungan 90).  Hasil penelitian menunjukkan bahwa tanaman pohpohan mampu beradaptasi dengan baik pada kondisi naungan 60%

PEMANFAATAN LIMBAH DAPUR RUMAH TANGGA SEBAGAI PUPUK ORGANIK CAIR DI KWT MAWAR KAMPUNG REKSO BINANGUN KECAMATAN RUMBIA KABUPATEN LAMPUNG TENGAH

Organic waste in the form of food scraps, vegetables, rotten fruit and leaves, fills the gutters and causes unpleasant odors and becomes a breeding ground for disease. Therefore, residents really need to be given education through training to process household organic waste independently. Through this activity, it is hoped that the environment will be cleaner and residents will no longer litter. Organic waste is fermented with EM4. The addition of EM4 activator aims to accelerate composting. The organic fertilizer produced will be applied to various vegetable gardens (spinach, chili, and tomatoes) which are developed in polybag media and planted on the sidelines of the yard. Through this service activity, the knowledge and skills of the people of Rekso Binangun Village, Rumbia District, Central Lampung Regency have increased regarding the use of household kitchen waste into liquid organic fertilizers so as to minimize air pollution due to household kitchen waste and the long-term impact is the community of Rekso Binangun Village accustomed to using organic fertilizers to reduce chemical fertilizer residues

Pengendalian Hama Dan Penyakit Tanaman Hortikultura Secara Terpadu Di Pekon Sidokaton, Kecamatan Gisting, Kabupaten Tanggamus

Pekon Sidokaton terletak dilereng Gunung Tanggamus tepatnya di kecamatan Gisting, Kabupaten Tanggamus. Sebagian besar masyarakat pekon Sidokaton bekerja sebagai petani. Permasalahan yang sering dihadapi petani Sidokaton adalah serangan organisme pengganggu tanaman (OPT). Selama ini pengendalian yang dilakukan adalah pengendalian secara kimiawi dengan menggunakan pestisida. Dalam penerapan di bidang pertanian, ternyata tidak semua pestisida mengenai sasaran. Kurang lebih hanya 20 persen pestisida mengenai sasaran sedangkan 80 persen lainnya jatuh ke tanah. Akumulasi residu pestisida tersebut mengakibatkan pencemaran lahan pertanian, reistensi hama dan penyakit, terakumulasi pada hasil panen, dan bersifat racun bagi penggunanya. Dalam pengendalian OPT haruslah memperhatikan konsep ekologi pertanian yang dikenal dengan konsep pengendalian hama terpadu (PHT). Konsep ini dilaksanakan dengan cara memadukan beberapa teknik pengendalian OPT yang dilakukan sejak dari awal persiapan lahan hingga panen, dengan menerapkan konsep PHT diyakini dapat mengatasi serangan OPT yang terjadi. Adanya  kegiatan penyuluhan PHT ini diharapkan petani Sidokaton mampu secara mandiri menerapkan konsep PHT dalam pengendalian OPT. Hasil pengabdian kepada masyarakat dapat disimpulkan bahwa petani Sidokaton mulai sadar akan pentingnya menjaga kelestarian keberlanjutan pertanian dengan menjaga ekosistem pertanian melalui pengendalian OPT secara terpadu