Tanaman seledri dipergunakan sebagai pelengkap masakan ataupun sebagai obat. Tingginya permintaan seledri dalam bentuk segar oleh masyarakat Indonesia belum dapat terpenuhi, selain itu tanaman seledri bersifat aditif dalam bahan makanan sehingga dipergunakan dalam jumlah sedikit tetapi penting. Penelitian dilaksanakan pada bulan Mei – Agustus 2014 di Screen House Fakultas Pertanian Universitas Padjadjaran, Jatinangor, Kabupaten Sumedang, Jawa Barat dengan ketinggian sekitar 700-800 m dpl. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) pola faktorial dua faktor. Faktor pertama terdiri dari 2 taraf, yaitu kain sumbu bahan wol dan kain sumbu bahan katun. Faktor ke dua adalah media tanam yang terdiri dari beberapa 5 taraf yaitu media tanam 100% kompos, media tanam 50% kompos + 50% arang sekam, media tanam 25% kompos daun bambu + 75% arang sekam, media tanam 75% kompos daun bambu + 25% arang sekam dan media tanam 100% arang sekam. Sehingga terdapat 10 kombinasi taraf perlakuan yang diulang sebanyak tiga kali.Uji lanjut menggunakan uji jarak berganda Duncan. Parameter utama yang diamati adalah tinggi tanaman, jumlah batang, dan bobot segar. Hasil penelitian menunjukkan bahwa terjadi interaksi antara jenis sumbu dan media tanam pada tinggi tanaman dari umur 3 MST sampai umur 8 MST dengan perlakuan (s2m2), pada jumlah batang terjadi interaksi pada umur 6 dan 8 MST dengan perlakuan (s2m3), bobot segar terjadi interaksi umur 8 MST dengan perlakuan (s2m2). Jenis sumbu dan media tanam yang paling baik pada umur 8 MST terhadap tinggi tanaman dan bobot segar adalah (s2m2) sedangkan pada jumlah batang terdapat pada perlakuan (s2m3). Celery plant is used as a food supplement or as a medicine. The high demand in the form of fresh celery by the people of Indonesia has not been met by supply, besides celery plants are additive in food ingredients also used in small amounts but vital. The experiment was conducted in May until August 2014 at screen house Faculty of Agriculture, University of Padjadjaran, Jatinangor, Sumedang regency, West Java Province, altitude 700-800 m above sea level. This study used a completely randomized design (CRD) factorial of two factors. The first factor composed of 2 levels, s1 = wool fabrics and s2 = cotton fabrics. Second factor was the growing media consisting of 5 levels respectively m1 = 100% of bamboo leaf compost, m2 = 50% of bamboo leaf compost + 50% of rice husk pyrolysis, m3 = 25% of bamboo leaf compost + 75% of rice husk pyrolysis, m4 = 75% of bamboo leaf compost + 25% of rice husk pyrolysis and m5 = 100% of rice husk pyrolysis. So there were 10 combinations level of treatment was repeated three times. Further test used Duncan Multiple Range Test. Parameter observed were plant height, number of stems and fresh weight. The results showed there were interaction between wick types and growing medias on plant height from 3 MST (Week After Planting) until 8 MST (Week After Planting) treatment (s2m2), the number of stems interaction at 6 MST and 8 MST treatment (s2m3), fresh weight interaction at 8 MST (Week After Planting) treatment (s2m2). The best of wick types and growing media at 8 MST on plant height and fresh weight was (s2m2) while the number of stems were in treatment (s2m3).
The phosphorus element plays an essential role in plant growth both at the vegetative and generative phases, so its concentration modification in the nutrient solution is necessary to stimulate vegetative growth and crop yield. The research aimed to know the influence of different phosphorus concentrations on growth and yield of cherry tomato using a hydroponic drip irrigation system, conducted from February to June 2017 at Green House Research Station of Universitas Padjajaran Jatinangor using Completely Randomized Design with five treatments and five replications. The treatments were: phosphorous concentration of 100 ppm (P/N ratio 0.4), 125 ppm (P/N ratio 0.5), 150 ppm (P/N ratio 0.6), 175 ppm (P/N ratio 0.7), and 200 ppm (P/N ratio 0.8). The results showed that the increasing concentration of phosphorus improved crops height at the end of the vegetative phase, increased the number of flowers from the beginning to the end of the generative period, was able to prevent the flower fall, enhanced harvest index and weight of tomato fruit significantly at harvest time. Application of 200 ppm phosphorus concentration can increase growth and yield of cherry tomato. Unsur fosfor berperan penting dalam pertumbuhan tanaman pada fase vegetatif maupun fase generatif. Konsentrasi unsur P pada nutrisi tanaman sangat penting untuk merangsang pertumbuhan vegetatif dan hasil panen. Penelitian ini bertujuan untuk mengetahui pengaruh ragam kosentrasi unsur posfor terhadap pertumbuhan dan hasil tanaman tomat cherry pada sistem hidroponik irigasi tetes. Penelitian telah dilaksanakan pada bulan Februari sampai Juni 2017 di Green House Universitas Padjadjaran Jatinangor menggunakan rancangan acak lengkap terdiri dari lima perlakuan dan lima ulangan. Perlakuan konsentrasi posfor, yaitu 100 ppm (rasio P/N 0,4), 125 ppm (rasio P/N 0,5), 150 ppm (rasio P/N 0,6); 175 ppm (rasio P/N 0,7), dan 200 ppm (rasio P/N 0,8). Hasil penelitian menunjukkan bahwa peningkatan konsentrasi posfor meningkatkan tinggi tanaman pada akhir fase vegetatif, meningkatkan jumlah bunga dari awal sampai akhir fase generatif, mengurangi jumlah bunga gugur, meningkatkan indeks panen dan berat buah. Aplikasi konsentrasi posfor 200 ppm dapat meningkatkan pertumbuhan dan hasil tanaman tomat cherry.
Fluctuations in rice production due to conversion of paddy field to other various land use defected the rice production in Indonesia, and in turn it may endanger the food security. Efforts to utilize hydroponics as a technology of vegetable production in limited land availability has developed. However, the practice of hydroponics in rice plants is still limited due to the availability of special nutrient. This study aims to determine the benefits of silicate rice husk extract on the growth of rice hydroponics. The research design used was complete randomized block design. The observed growth parameters are : plant height, electrical conductivity of nutrients and pH. The observed data were analyzed using variance analysis. If the results of variance analysis are significant, the analysis will be proceed with Duncan multiple range test. The results showed that application of rice husk silica extract of 20 ml/L through leaves gave the same response with sodium silicate (Na2O3Si) application through nutrient solution, but had significant effect on the change of electrical conductivity value and pH of nutrient solution. The results showed that silicates derived from organic materials can replace the role of silicates derived from inorganic materials on paddy hydroponic.
Strawberry becomes one of the popular plants in agro-tourism by combining strawberry plantation with culinary tourism. Increasing growth and yield of strawberry plant can be achieved by applying liquid organic fertilizer (LOF) of vegetable waste and planting media. This research was conducted to study interaction between LOF and planting medium (PM) and to inquire about the best dosage of LOF and planting medium for the growth and yield of strawberry. This research was conducted in the sub-district of Cibiru, Bandung City, West Java. The research design was Randomized Block Design with two factors and three replications. The first factor was vegetable waste of LOF with four treatments level respectively: p0: without LOF application, p1:250 ml, p2: 500 ml, and p3: 750 ml. The second factor was planting media with three treatments level respectively : m0: without husk charcoal, m1: (1:1) soil and husk charcoal, m2: (1:2) soil and husk charcoal. The research finding came up by the existence of interaction in leaf width with the highest number by 835.42 cm2 in combination of p2m2 treatment.
Tanaman selada di Indonesia umumnya dikonsumsi dalam bentuk segar. Evaluasi pengaturan nilai electrical conductivity (EC) sesuai umur tanaman selada diperlukan sebagai upaya menjaga kualitas produk (berat segar, tampilan visual) dan meningkatkan efisiensi penggunaan nutrisi. Penelitian ini dilakasanakan pada September-Oktober 2017 bertempat di Kecamatan Banjaran. Percobaan yang dilakukan menggunakan Rancangan Acak Lengkap terdiri dari 4 taraf dan diulang 6 kali. Perlakuan yang diberikan merupakan kombinasi nilai EC fase vegetatif awal (VI) dan fase vegetatif akhir (VII) perlakuan A=(VI = 1,5; VII = 2,0); B=(VI = 1,6; VII = 2,2);C=(VI = 1,7; VII = 2,4);D=(VI = 1,8; VII = 2,6) mS cm-1. Aplikasi nilai EC (VI = 1,7; VII = 2,4) mS cm-1 memberikan pertumbuhan tertinggi (tinggi tanaman, luas daun, bobot segar tanaman). Berdasarkan hasil berat segar tanaman pengaturan nilai EC dapat meningkatkan efisiensi penggunaan nutrisi hidroponik. Lettuce is commonly consuming as a fresh vegetable in Indonesia. The evaluation of electrical conductivity adjustment by lettuce plant age is an effort to achieve quality product (fresh weight, visual appearance) and improve nutrient efficiency. This research conducted in September-October 2017 at Banjaran District. This experiment used a completely randomized design with 4 level treatments and replicated six times. Application of combination EC value phase vegetative I and vegetative II, respectively: A=(VI = 1.5; VII = 2.0); B=(VI = 1.6; VII = 2.2);C=(VI = 1.7; VII = 2.4);D=(VI = 1.8; VII = 2.6) mS cm-1. This research showed that application nutrient with EC value (VI = 1.7; VII = 2.4) mS cm-1 affect plant growth higher (plant height, leaf area, fresh weight). Based on the results of the plant’s fresh weight parameter EC value improved the efficiency of using hydroponic nutrient.
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