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All Journal Jurnal Ilmu-Ilmu Pertanian Indonesia Jurnal Penelitian Pertanian Terapan
Priyadi Priyadi
STIPER Dharma Wacana Metro
Agriculture, Biological Sciences & Forestry

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Production and Quality Pennisetum purpureum at Shading Condition and Nitrogen Fertilizer Dosage Windu Mangiring; Nurleni Kurniawati; Priyadi Priyadi
Jurnal Penelitian Pertanian Terapan Vol 17 No 1 (2017)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (221.736 KB) | DOI: 10.25181/jppt.v17i1.41

Abstract

This experiment aims to determine 1) The effect of  shading and nitrogen fertilizer to production   of Pennisetum purpureum ; and 2) The effect of  shading and nitrogen fertilizer  to quality of Pennisetum purpureum,experiment performed in January until May 2016at fieldSTIPER Dharma Wacana Metro.The experiment was investigated in random block design with three replication. The first factor is consisted of two treatment of shading level, i.e (0%) without shading  and (50%)  paranet shade. The second factor consisted of three treatment of nitrogen fertilizer dosage, i.e 50 kgha-1 nitrogen fertilizer, 100 kgha-1nitrogen fertillizer and 200 kgha-1 nitrogen fertilizer. The results showed that effect paranet shade 50% in fact evidently  decrease the production of Pennisetum purpureum 60 %. Quality of Pennisetum purpuremlike  nitrate content, crude protein content  and crude fiber contenton 50%paranet shade 0,2%-0,11%;7,8%-10,8%; and 29,13%-30,00%. In shade condition, a dose of 50 kgha-1not significant production of elephant grass forage, elephant grass forage production response to increasing doses of N (50-200 kgha-1)is more significant than whitout shade. Key words : Pennisetum purpureum,elephant grass, paranet shade, nitrogen
Aplikasi Kompos dan Arang Aktif Sebagai Bahan Amelioran di Tanah Berpasir Terhadap Pertumbuhan Tanaman Caisim (Brassica juncea L.) Priyadi Priyadi; Jamaludin Jamaludin; Windu Mangiring
Jurnal Penelitian Pertanian Terapan Vol 18 No 2 (2018)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v18i2.1069

Abstract

One of the efforts in sandy soil utilization is to add ameliorant material. The addition of ameliorant material can use compost that plays an important role in improving the physical, chemical and biological properties of the soil. The purpose of this study was to determine the effect of compost and activated charcoal as ameliorant material on sandy soil to the growth of mustard plant (Bressica juncea L). The study was conducted at Greenhouse of STIPER Dharma Wacana Metro, while soil analysis was conducted in Taman Bogo Soil Research Laboratory. The results showed that the use of ameliorant material in the form of activated charcoal and compost can improve the sandy soil properties as indicated by the increase of pH, moisture content, C-organic, and N-total. The highest effect of growth was shown in the treatment of PK that is 9.86 gram. While, the highest growth of plant roots is shown in 1.07 gram of PKA treatment. In general, the use of ameliorants in this study has a good effect in the change of sandy soil properties and growth in mustard plants.
DAMPAK APLIKASI FLY ASH DARI PEMBANGKIT LISTRIK DI PT. GREAT GIANT PINEAPPLE-LAMPUNG TERHADAP AKTIVITAS BIOLOGI TANAH DI LAHAN MARGINAL Nurleni Kurniawati; Priyadi Priyadi
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 23 No 1 (2021)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.23.1.9-14

Abstract

[EFFECT OF FLY ASH APPLICATION FROM POWER PLANT OF PT. GREAT GIANT PINEAPPLE ON SOIL BIOLOGYCAL ACTIVTY IN MARGINAL LAND]. Fly ash is a coal combustion waste containing nutrients that can be used to improve the soil fertility. The waste continues to increase but its handling is still limited because it is still classified as hazardous and toxic waste (B3). This study aims to determine the soil biological activity due to the application of fly ash and cow manure on marginal soils. The study was conducted using a completely randomized block design arranged factorial. The first factor is the dosage level of fly ash (F), namely 0 g/pot (0 ton/ha), 75 g/pot (50 ton/ha), 150 g/pot (100 ton/ha), and 225 g/pot (150 ton/ha) and the second factor is the dose of cow manure with three levels, namely 15 g/pot (10 ton/ha), 30 g/pot (20 ton/ha), and 45 g/pot (30 ton/ha). The observation parameters were (total population of fungi, bacteria, and soil respiration). The results showed that the addition of fly ash at various doses affected the soil biological activity by increasing the population of fungi, bacteria and soil respiration. The highest population of microorganisms was fungi, which was 17.8 x 107 Log CFU/g, bacteria 13.7 x 105 Log CFU/g, while the highest soil respiration was 54.53 mg CO2 at a dose of 100 ton/ha fly ash. In addition, the application of cow manure at a dose of 10, 20, 30 ton/ha  did not affect observed variables. 
Co-Authors Jamaludin Jamaludin Nurleni Kurniawati Windu Mangiring