Hardy Guchi
Universitas Sumatera Utara

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PEMETAAN STATUS C-ORGANIK TANAH SAWAH DI DESA SEI BAMBAN, KECAMATAN SEI BAMBAN KABUPATEN SERDANG BEDAGAI Ompusunggu, Guntur; Guchi, Hardy; Razali, Razali
Jurnal Agroekoteknologi Vol 4, No 1 (2016)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (369.446 KB) | DOI: 10.32734/jaet.v4i1.12348

Abstract

This research was heldto know sprending of C-organic on paddy soil land at Village of Sei Bamban Subdistric of Sei Bamban Distric of Serdang Bedagai. This research was executed in Village of Sei Bamban Subdistric of Sei Bamban Distric of Serdang Bedagai on May until August 2015. Samples were taked with method Survey Free Grid of storey level semi detail survey. Parameter which was measured is C organic and analysed with Walkley and Black methods.The results of research were obtained four criteria C-organic nutrient status is very low, low, medium and high. At very low criteria have wide equal to 901,66 Ha. At low criteria have wide equal to 196,34 Ha. At medium have wide equal to 140,10 Ha. At high criteria have wide equal to 0,74 Ha.Keywords: Mapping, C organic, Paddy Soil, Village of Sei Bamban
EVALUASI STATUS BAHAN ORGANIK DAN SIFAT FISIK TANAH (BULK DENSITY, TEKSTUR, SUHU TANAH) PADA LAHAN TANAMAN KOPI (COFFEA SP.) DI BEBERAPA KECAMATAN KABUPATEN DAIRI Br.Tarigan, Emalia Sinarta; Guchi, Hardy; Marbun, Posma
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (194.612 KB) | DOI: 10.32734/jaet.v3i1.9474

Abstract

Evaluation Status of Organic Matter Content and Soil Physical Properties (Bulk Density, Texture and Soil Temperature) the Coffee Crop Land (Coffeea Sp.) in Some Districts Dairipurpose to makeevaluation status of the organic matter and soil physical properties (bulk density, texture and soil temperature) the coffee crop land (Coffeea Sp.) in some districts Dairi. Sampling using free methods tosurvey the level of review and analysis of data C- organic by Walkey and Black method, bulk densityby Ring Sample method, texture by Hydrometer method and soil temperature (oC) using the formula ofBraak, and interpret the nutrient status of the map through the program ArcMap 10. Parameters in the analysis are C-organik, bulk density, texture and soil temperature. The result of research showed thatthe nutrient status of the research area map C-organic consists of a very low criteria (3 sample), low(13 sample),being(12 sample) danhigh (10 sample). Bulk Density, porous criteria (13 sample) and solid (25 sample). Texture, very smoothcriteria (1 sample), smooth (6 sample), rather smooth (10 sample), being (9 sample), a bit rough (7 sample) dan rough (4 sample), andrezim Soil TemperatureIsohyperthermic (38 sample). Keywords :C-organic, bulk density, texture and soil temperature.
THE GROWTH OF WHITE CORN PLANT WITH SEVERAL PHOSPOR FERTILIZERS AND MYCORRHIZA APPLICATION IN INCEPTISOL AT LUMBAN LOBU VILLAGE, BONATUA LUNASI SUBDISTRICT TOBA SAMOSIR DISTRICT- SUMATERA UTARA Prima, Andrew Hans; Bintang, Bintang; Guchi, Hardy; Hidayat, Benny
AGRITROPICA : Journal of Agricultural Sciences AGRITROPICA Vol 1 No 2, November 2018
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (563.166 KB) | DOI: 10.31186/j.agritropica.1.2.93-99

Abstract

The criteria of P available on Inceptisol soil are low, so P fertilizer and mycorrhiza application is needed to increase P available on the soil. This research aim was to determine the growth of white corn plants by various P fertilizers and mycorrhiza application in Inceptisol soil at Lumban Lobu Village, Bonatua Lunasi Subdistrict, Toba Samosir District Sumatera Utara. The method used was Factorial Randomized Block Design with two factors and two repetitions. The first factor is the source of P consists of 7 treatments: P0 (control); P1 (TSP fertilizer); P2 (phosphate rock fertilizer); P3 (chicken manure); P4 (cow manure); P5 (guano fertilizer) and P6 (rice husk biochar) and the second factor is mycorrhiza with two treatments: M0 (0 g / plot) and M1 (30g / plot). Parameters observed were plant height, organic C content, soil H2O pH and degree of mycorrhiza infection. The research results showed that the application of P sources did not significantly increase the growth of white corn plants. The application of mycorrhiza significantly increased the degree of root infection and the interaction of P sources and mycorrhiza significantly increased the degree of root infection.Keywords : P Sources, Mycorrhiza, Inceptisol, White Corn.