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All Journal JTSL (Jurnal Tanah dan Sumberdaya Lahan) Jurnal Agroekoteknologi dan Agribisnis
Jati Purwani
Soil Research Institute Agency for Agricultural Resources and Development
Agriculture, Biological Sciences & Forestry Environmental Science

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EFEKTIVITAS CARA APLIKASI DAN LAMA PENGOMPOSAN PUPUK HIJAU (LEGUME) TERHADAP PERTUMBUHAN DAN PRODUKSI CAISIM (Brassica juncea L.) Dwiwanti Sulistyowati; Jati Purwani; Achdiyat Achdiyat
Jurnal Agroekoteknologi dan Agribisnis Vol. 1 No. 1 (2017)
Publisher : Politeknik Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6185.722 KB) | DOI: 10.51852/jaa.v1i1.400

Abstract

This study aims to determine the effect of method and duration of application composting green manure (legume) on the growth and mustard (Brassica juncea L.) production. This study was located in Experimental Station of Bogor Agricultural Extension College in Pasir Kuda Village, Bogor. Started on June August 2013. The experimental design used was completely randomized block design (CRBD), factorial split plot (split plot design). The first factor was main plot (green manure application method) consists of two levels, namely spreaded and buried. The second factor was subplot (duration of green manure composting) consists of three levels, namely 2 weeks pre-planting (-2 MST), one week pre-planting (-1 MST) and 0 MST or at planting time. The results of analysis using the F test showed that the application of green manure spreaded around the plant (as mulch) generate growth, shoot weight, root weight, roots number and root length were better, and generate mustard production higher than buried green manure application. Penelitian ini bertujuan untuk mengetahui pengaruh cara dan lama pengomposan pupuk hijau (legume) terhadap pertumbuhan dan produksi caisim (Brassica juncea L.). Penelitian ini berlokasi di Kebun Percobaan STPP Bogor, Kelurahan Pasir Kuda, Kota Bogor dimulai pada Juni - Agustus 2013. Rancangan percobaan yang digunakan adalah Rancangan Acak Kelompok Lengkap (RAKL) faktorial petak terpisah (split plot design). Faktor pertama berupa petak utama (cara aplikasi pupuk hijau) terdiri dari dua level yaitu ditebar dan dibenam. Faktor kedua berupa anak petak (waktu pengomposan pupuk hijau) terdiri dari tiga level yaitu 2 minggu sebelum tanam (-2 MST), 1 minggu sebelum tanam (-1 MST) dan 0 MST atau saat tanam. Hasil analisis dengan menggunakan uji F menunjukkan bahwa aplikasi pupuk hijau ditebar (sebagai mulsa) menghasilkan pertumbuhan, bobot tajuk, bobot akar, jumlah akar dan panjang akar yang lebih baik, serta menghasilkan produksi caisim lebih tinggi dibandingkan aplikasi pupuk hijau yang dibenam.
PENGARUH SIANOBAKTERI DAN DOSIS PUPUK NITROGEN TERHADAP HASIL PADI SAWAH (Oryza sativa L.) Nono Malini Syahril; Yulia Nuraini; Jati Purwani
Jurnal Tanah dan Sumberdaya Lahan Vol. 4 No. 2 (2017)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (484.07 KB)

Abstract

The increasing of rice productivity which followed by environmental sustainability and land’s fertility can be done by using of biological fertilizers. There is a type of microbes that are potentially as biological fertilizers which can be utilized as a supplier of rice crops’ nutrient and it has a plentiful number is Cyanobacteria. Cyanobacteria or blue-geen algae includes into one of prokaryotic algae goup. This organism roles as manufacturer and producer of nitrogen compound (N) in the water. This research was carried out in the greenhouse Balai Penelitian Tanah, Bogor from November 2016 to April 2017. The experiment was designed using Randomized Block Design with 2 Factorial factors. The first factor is isolates Cyanobacteria (Control, KL2’ isolate and C37’s isolate with dose 250 kg ha-1) and the second factor is the nitrogen fertilization (0%, 25%, 50%, 75% and 100% of the recommended dose from 250 kg Urea ha-1) which is repeated three times. The result showed that different doses of nitrogen fertilization gave an effect on the population of Cyanobacteria. Treatment of S1N1 has a higher total population as 333,33 cfu g-1. Giving Cyanobacteria tends to decrease the total N residue of the soil and followed by increased yield of rice. S0N3 treatment has the highest containing of N as 0,23%. The interaction of  application Cyanobacteria and different doses of nitrogen fertilization not give a real effect to the growth and yield of rice.. Giving Cyanobacteria does not give a real effect on all parameters of observation. Nitrogen fertilization with 100% recommended doses gives effect to the growth and yield of rice.
Co-Authors Achdiyat Achdiyat Dwiwanti Sulistyowati Nono Malini Syahril Yulia Nuraini