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Journal : Jurnal Agro

Adjustment of phosphorus concentration to increase growth and yield of cherry tomato using hydroponic drip system Cecep Hidayat; Budi Frasetya; Ilman N Syamsudin
Jurnal Agro Vol 5, No 2 (2018)
Publisher : Jurusan Agroteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/3658

Abstract

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.
Pengaruh Aplikasi Ragam Bahan Organik dan FMA terhadap Pertumbuhan dan Hasil Tanaman Cabai (Capsicum annum L.) Varietas Landung pada Tanah Pasca Galian C Muhamad Fajar Ramadhan; Cecep Hidayat; Sofiya Hasani
Jurnal Agro Vol 2, No 2 (2015)
Publisher : Jurusan Agroteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/438

Abstract

Penelitian yang bertujuan untuk mengetahui pengaruh bahan organik (kompos gamal, dan asam humat) serta FMA (Glomus sp. + Gigaspora sp.+ Aclauspora sp) terhadap pertumbuhan serta hasil tanaman cabai pada tanah pasca galian C telah dilaksanakan di Gapoktan Simpay Tampomas, Sumedang sejak bulan Februari sampai dengan Juli 2014. Metode yang digunakan merupakan metode eksperimental berupa Rancangan Acak Kelompok (RAK),  dengan 8 perlakuan dan 4 kali ulang: a0 = kontrol, a1 = kompos gamal 5 t ha-1, a2 = kompos gamal 10 t ha-1, a3 = aplikasi FMA, a4 = asam humat, a5 = kompos gamal 5 t ha-1 + FMA , a6 =  kompos gamal 10 t ha-1 + FMA, dan a7 = aplikasi asam humat + FMA. Pengujian lanjut dilakukan dengan Duncan Multiple Range Test (DMRT). Hasil penelitian menunjukkan bahwa aplikasi kompos gamal, asam humat, dan FMA tidak berpengaruh nyata terhadap diameter batang dan bobot segar buah, tetapi berbeda nyata terhadap tinggi tanaman. Pengaplikasian bahan organik hingga 10 t ha-1, asam humat, dan FMA belum berpengaruh nyata terhadap perbaikan kesuburan tanah pasca galian C (tambang pasir), karena kondisi tanah pasca galian C yang didominasi 75% pasir dan 50% batuan. The study which aimed to determine the effect of organic matter (gliricidia compost, and humic acid) also AMF (Glomus sp. + Gigaspora sp. + Aclauspora sp.) on growth and yield of chili plants on post-excavation soil C had been held in Gapoktan Simpay Tampomas, Sumedang from February to July 2014. The method was an experimental method a randomized block design (RBD), with 8 treatments and repeated 4 times: a0 = control, a1 = gliricidia compost 5 t ha-1, a2 = gliricidia compost 10 t ha-1, a3 = AMF, a4 = humic acid, a5 = gliricidia compost 5 tons ha-1 + AMF, a6 = gliricidia compost 10 tons ha-1 + AMF, and a7 = humic acid + AMF. Further testing was done by Duncan Multiple Range Test (DMRT). The results showed that the application of gliricidia compost, humic acid, and AMF did not significantly affect stem diameter, and fresh weight of fruit, but significant on stem height. Application of organic matter up to 10 tons ha-1, humic acid, and AMF had not significantly affect fertility improvement of post-excavation soil C (sand mining), because the soil C dominated by 75% sand and 50% rock.