Sri Nuryani Hidayah Utami
Fakultas Pertanian Universitas Gadjah Mada

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Penerapan Teknologi Tepat Guna Padi Sawah Spesifik Lokasi di Dusun Ponggok, Trimulyo, Jetis, Bantul Sri Nuryani Hidayah Utami; Achmadi Priyatmojo; Subejo Subejo
Jurnal Pengabdian kepada Masyarakat (Indonesian Journal of Community Engagement) Vol 1, No 2 (2016): Maret
Publisher : Direktorat Pengabdian kepada Masyarakat Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (439.442 KB) | DOI: 10.22146/jpkm.10610

Abstract

The role of technology is very important in supporting improvement of agricultural production. The high-tech strategic role was demonstrated by the success in achieving increased production of rice within the last 35 years is the contribution of the application of more advanced technology. Mosher et al. (2003) put technology as an essential condition for agricultural development. If there is no change in the technological development of agriculture was halted. Production halted the increase, it may even decline because of declining fertility tannic or because of damage increased by pest play an increasingly rampant. A view to changing the technology, can be interpreted as an adaptive technology on the condition of the biophysical and social environment of the local culture. Practical application of specific technologies by farmers, for example how farmers adjust to the conditions of cultivation of local agro-ecosystem forming a specific production system on irrigated land, rainfed lowland, upland, swampy areas, and tidal. Choice according to agro-ecosystem farmers are adapting cultivation is calibration-specific technologies. It’s caused each commodity grows well on climatic conditions, soil and culture-specific social support. Community service activities has been implementing the specific technology that is enriched with appropriate technology research team of the Faculty of Agriculture of UGM by utilizing site-specific conditions of Ponggok Hamlet, Trimulyo, Jetis, Bantul, which have ingredients that can be used for making fertilizer and also wisdom locations in rice cultivation which has been done by farmers for generations. Community Service Team of Faculty of Agriculture, UGM during 2013-2015 had engaged in community service based on the results of research and appropriate technologies in Ponggok Hamlet, for 2 seasons seen significant progress and participation of farmers. In 2013 the results of the demonstration plot tile average of 6.8 tons/ha, after continuous mentoring and counseling in 2014 the results of tile becomes 7.8 to 9.8 tons/ha. Activities application of appropriate technology in a farmer’s land is not easy. Although guidance and counseling has been done before, but not all farmers want and dare to carry out all of the technology that is recommended because it is still in doubt, especially with regard to plant spacing, seed age and the number of seedlings planted. In 2015, a technology package has been introduced covering healthy seedlings, planting system “footprint tiger”, “tajarwo”, homemade compost with waste around the site and biological fertilizers. The results of the application of specific technologies in the growing season of April to July 2015 showed an increase in rice production, but the farmer as a principal factor remains the key to successful application of the technology.
Competitive adsorption of phosphate with sulfate, humic acid, and fulvic acid by allophane in different parent materials in Central Java Lilia Fauziah; Eko Hanudin; Sri Nuryani Hidayah Utami
Jurnal Ilmu Pertanian Vol 7, No 2 (2022): August
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.72050

Abstract

Andisol is a soil that has andic properties and develops from volcanic parent materials, especially ash. Andic soil properties are formed due to weathering of tephra or other parent materials that contain volcanic glass in large quantities. The main components of soil-forming Andisol are amorphous (short-range-order) minerals, such as allophane, imogolite, ferrihydrite, and Al/Fe-humus complexes. The existence of short-range-order minerals causes Andisol to have high P-tapping ability, but efforts to lower the amount of P plunged with organic and inorganic an-ons have not been widely studied. This study aimed to compare the ability of humic acid, fulvic acid, and sulfate in suppressing P adsorption by amorphous minerals from the Andisol of Mount Dieng, Merbabu, and Sumbing. The highest calculation of % ferrihydrite was found at the location of Mount Merbabu with a value of 3.05%, while the % allophane + imogolite was determined by the content of Sio in the ground. The calculation results showed that the highest was found at the location of Mount Sumbing with a value of 7.17%. Based on TEM analysis, Mount Sumbing has allophane diameter of 2.24 – 5.93 nm and the imogolite length of 24 – 187 nm. 
Competitive adsorption of phosphate with sulfate, humic acid, and fulvic acid by allophane in different parent materials in Central Java Lilia Fauziah; Eko Hanudin; Sri Nuryani Hidayah Utami
Jurnal Ilmu Pertanian Vol 7, No 2 (2022): August
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.72050

Abstract

Andisol is a soil that has andic properties and develops from volcanic parent materials, especially ash. Andic soil properties are formed due to weathering of tephra or other parent materials that contain volcanic glass in large quantities. The main components of soil-forming Andisol are amorphous (short-range-order) minerals, such as allophane, imogolite, ferrihydrite, and Al/Fe-humus complexes. The existence of short-range-order minerals causes Andisol to have high P-tapping ability, but efforts to lower the amount of P plunged with organic and inorganic an-ons have not been widely studied. This study aimed to compare the ability of humic acid, fulvic acid, and sulfate in suppressing P adsorption by amorphous minerals from the Andisol of Mount Dieng, Merbabu, and Sumbing. The highest calculation of % ferrihydrite was found at the location of Mount Merbabu with a value of 3.05%, while the % allophane + imogolite was determined by the content of Sio in the ground. The calculation results showed that the highest was found at the location of Mount Sumbing with a value of 7.17%. Based on TEM analysis, Mount Sumbing has allophane diameter of 2.24 – 5.93 nm and the imogolite length of 24 – 187 nm.