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All Journal Caraka Tani: Journal of Sustainable Agriculture
Supriyadi Supriyadi
Program Studi Ilmu Tanah Fakultas Pertanian Universitas Sebelas Maret
Agriculture, Biological Sciences & Forestry

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PENGARUH PEMBERIAN BIOMASSA Tithonia diversifolia DAN BAKTERI ASAM LAKTAT TERHADAP PERTUMBUHAN JAGUNG, KETERSEDIAAN FOSFOR DAN ALUMUNIUM PADA TANAH ULTISOL Rahayu Rahayu; Sumani Sumani; Supriyadi Supriyadi; Nafiatul Umami
Caraka Tani: Journal of Sustainable Agriculture Vol 27, No 2 (2012): October
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3277.923 KB) | DOI: 10.20961/carakatani.v27i2.14252

Abstract

One of the potential soil to increase food production in Indonesia is Ultisols but having problems in abiotic stresses especially high exchangeable Aluminum (Aldd) and low pH. This study aimed to determine the effect of Tithonia diversifolia biomass and lactic acid bacteria to increase soil phosphor, reduce aluminum toxicity and promote maize plant growth in Ultisol. Experimental design was completely ramdomized design with 3 factors such as the addition of lactic acid bacteria in the carrier, compost biomass of Tithonia diversifolia and phosphor fertilizer. Application of Lactic Acid Bacteria and Tithonia and P fertilizers simultaneously increasing maize plant growth and reduce Aldd especially on a month after application.
PENGUATAN KELEMBAGAAN KELOMPOK TANI PEMERHATI SUNGAI “NGUDI MULYO” DESA GEDONGREJO, GIRIWOYO, WONOGIRI Robertus Sudaryanto; Sumani Sumani; Purwanto Purwanto; Supriyadi Supriyadi
Caraka Tani: Journal of Sustainable Agriculture Vol 26, No 1 (2011): March
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2025.454 KB) | DOI: 10.20961/carakatani.v26i1.14098

Abstract

LOCATION: was conducted at Ngulang, Gedongrejo, Giriwoyo, Wonogiri district. With the TITLE: the use of Syperus ratandus (rumput gelagah) and Vetivera zizanoides (akar wangi) fr river edge and riverbank reinforcement at Ngulang, Gedongrejo, Giriwoyo, Wonogiri district. PURPOSE: 1) to response the desire and requirement if surrounding society to protect and prevent he Bengawan Solo upper riverbank from sliding and flood threat; 2) socialization a model of soil and water conservation by cultivating Syperus ratandus and Vetivera zizanoides that supported by the society; 3)  to motivate the society for cultivate the Vetivera zizanoides, which both economical, conservation innovation and networking. METHOD: 1) field observation; 2) focus group discussion. RESULT: plot model conservation 700x20 m (left and right side of riverbank) and giving example akar wangi one lane all along the river (±700 m), 2) unionize a riverbank observers group. CONCLUSION: 1) the surrounding society of Ngulang are positively response to this activity; 2) the riverbank observer group of the surrounding society was formed, called as “Ngudi Mulyo”; 3) plot model conservation (±700 m); 4) when the river flood, akar wangi and gelagah actually can protect and prevent the riverbank. IMPLICATION: 1) institution strengthening, 2) development for the peasants that do not obtain the facilities at this program, 3) training of livestock waste and litter management, 4) market network strengthening.
Co-Authors Nafiatul Umami Purwanto Purwanto Rahayu Rahayu Robertus Sudaryanto Sumani Sumani