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Pengaruh Sistem Intercrop Padi Gogo - Rumput Terhadap Pertumbuhan Dan Hasil Padi Gogo Yugi R Ahadiyat; T Harjoso; Ismangil Ismangil
Agrologia Vol 3, No 2 (2014)
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/a.v3i2.252

Abstract

The objective of this study was to determine characters of several drought tolerance and high yield upland rice variety under low soil water content in intercrops rice – grass system. The study was carried out in rain water irrigation area of Banjaranyar village. Experimental design was Split Plot Design with three replicates. The  Main plot was grass i.e no grass, elephant grass and lemon grass while  sub plot was upland rice variety i.e. Situ Patenggang, Kalimutu, Danau Gaung, Jatiluhur dan Cisokan. Under very low soil water content (<12%), there was growth and yield differenc between rice varieties grown in intercrops system with grass. Eventhough there was no effect of this intercrop system on plant growth of upland rice, elephant grass promote  higher rice yield, 0.88 t/ha than that without grass (0.39 t/ha) and with lemongrass (0.60 t/ha). Kalimutu variety showed the higher yield (1.38 t/ha)  with plant height  up to 46.27 cm and leaf area up to 4.63 cm2.
RESPON ASAP CAIR TEMPURUNG KELAPA DAN PUPUK N, P, DAN K TERHADAP PERTUMBUHAN, FISIOLOGI PADI GOGO Victor Bintang Panunggul; Ahadiyat Yugi Rahayu; Ismangil Ismangil
Jurnal Agroqua: Media Informasi Agronomi dan Budidaya Perairan Vol 19 No 1 (2021): Jurnal Agroqua
Publisher : University of Prof. Dr. Hazairin, SH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32663/ja.v19i1.1691

Abstract

The main problem of the minimum that inhibits crop growth, causing low productivity. (1) The study aims determine the effect of liquid smoke coconut oil on growth, of response upland rice physiology, (2) the study aims determine percentage of N, P, K fertilizer on the character of growthand response of upland rice physiology, (3) the study aims determine interaction the effect of variety and liquid smoke coconut oil, and percentage N, P, K fertilizer on the character of growth, and response of upland rice physiology. The research was conducted on April-September 2016 Cendana, Kutasari, Purbalingga. The design used was split – split plot with 3 replications. The main plot is upland rice varieties of Situ Bagendit, Inpago Unsoed 1 and Situ Patenggang. The Subplot is application of coconut shell liquid smoke without application concentration (0,5%), and (1%). The sub-subplot is the dosage of NPK fertilizer percentage of 0% NPK, 25% NPK, 50% NPK and 100% NPK. The variables observed were plant height, leaf number, number of tiller, leaf area, chlorophyll a, chlorophyll b, proline. The results showed that leaf area were significantly different in liquid smoke applications. Plant height, leaf size, chlorophyll b significant of NPK fertilizer.
Pengaruh Kondisi Lahan Kering Tanpa Olah Tanah Terhadap Kelimpahan Gulma Yugi R Ahadiyat; Agus Sarjito
Al-Kauniyah: Jurnal Biologi Vol 15, No 1 (2022): AL-KAUNIYAH: JURNAL BIOLOGI
Publisher : Department of Biology, Faculty of Science and Technology, Syarif Hidayatullah State Islami

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/kauniyah.v15i1.15137

Abstract

AbstrakGulma merupakan salah satu masalah utama dalam sistem budi daya tanaman, khususnya di lahan kering. Oleh karena itu, pengetahuan tentang pengolahan tanah di lahan kering dengan tanpa olah tanah akan memberikan informasi berguna dalam pengelolaan gulma. Tujuan dari penelitian ini adalah untuk mengetahui kelimpahan gulma berdasarkan golongan dan spesies gulma, bobot kering gulma, dan rasio dominansi gulma pada lahan tanpa olah tanah (TOT) di lahan kering. Rancangan lapang yang digunakan adalah rancangan acak kelompok dengan tiga ulangan. Observasi dan pengambilan sampling dilakukan melalui pengamatan gulma pada waktu 0, 2, 4, 6, 8, dan 10 minggu. Komponen kelimpahan gulma yang diamati meliputi jumlah gulma, bobot kering gulma dan rasio dominansi gulma. Hasil penelitian menunjukkan bahwa gulma golongan daun lebar memiliki jumlah spesies tertinggi namun dengan dominasi yang setara dengan gulma golongan rumput. Cynodon dactylon merupakan spesies paling dominan yang tumbuh di lahan kering tanpa olah tanah yang konsisten di setiap waktu pengamatan dengan jumlah >500, nilai rasio dominansi gulma >10, dan bobot kering biomassa >12 g. Implikasi dari penelitian ini adalah mengetahui pola pertumbuhan gulma di lahan kering tanpa olah tanah dalam upaya pengendaliannya untuk kepentingan budi daya pertanian.Abstract Weeds are one of the main problems in cropping systems, especially on dry land. Therefore, the knowledge of soil tillage in dryland areas with no-till will provide svaluable information in weed management. The objective of this study was to determine the abundance of weeds based on weed types and species, weed dry weight, and summed dominance ratio in dryland conditions with no-till. The field design used was a randomized block design with three replications. Observation and sampling were conducted by observing weeds at a time of 0, 2, 4, 6, 8, and 10 weeks. Weed abundance components observed included the number of weeds, summed dominance ratio, and dry weight of weeds. The results showed that the broadleaf weeds had the highest number of species, but the dominance was equivalent to the grass weeds. Cynodon dactylon was the most dominant and consistent species that grew in dryland with no-till with the number of species >500, summed dominance ratio >10, and biomass dry weight >12 g at each observation time. The implication of this study was to know the pattern of weeds growing in dryland área with no-till to control weeds for cropping systems purposes.
UPAYA MENDAPATKAN GENOTIP KEDELAI EFISIEN UNSUR HARA P PADA LAHAN RENDAH P Ahadiyat Yugi R.; Agus Riyanto
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 18, No 1 (2011)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (236.299 KB)

Abstract

In Indonesia, low soil P availability is the major constraint in upland area.  Therefore, it is needed to find soybean varieties with characters efficient in P and high yield.  The objective of this study was to evaluate P uptake, P efficiency, yield, morphological and physiological characters for selection of P efficient varieties.  A Randomized Completely Block design was used with three replications.  Seven varieties i.e. local, Slamet, Leuser, L1 503, S1 131(2), SL3 113(6), S1 053 and P applications i.e. without P and 36 kg P2O5 ha-1 were tested.  Some variables such as plant height, shoot weight, leaf number, branch number, filled and unfilled of pod number, grain weight, P content, P uptake and efficiency were analyzed.  Data was analysis by F test and followed by DMRT.  The results showed that there were different responses on P uptake among genotypes under low P condition. Slamet, S1 053, SL3 113 (6) and Leuser had characters of high potential of yield and efficient in P uptake under P stress.  Some characters could be used for variety selection of P efficient with high yield i.e. shoot and grain weight, and P efficiency.
TOLERANSI KEKERINGAN BEBERAPA PADI GOGO UNGGUL NASIONAL TERHADAP KETERSEDIAAN AIR YANG TERBATAS Ahadiyat Yugi Rahayu
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 19, No 1 (2012)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (300.951 KB)

Abstract

Low national productivity of upland rice is due to the limitation of available water especially during dry season. Selection of drought tolerant varieties and high yield production is a suitable solution. The objective of this study was to identify upland rice varieties tolerant to drought and their physiological and morphological characters. The study was carried out in a plastic house at research station of Faculty of Agriculture, General Soedirman University during August to October 2008. A split plot design was used within which fifteen upland rice varieties i.e. Silugonggo, Kalimutu, Gajah mungkur, Dodokan, Way rarem, Jatiluhur, Ciherang, Cisokan, Situ Bagendit, Situ Patenggang, Gilirang, Cirata, Batulegi, Way Ampo Buru and Danau Tempe were the main plots and different water applications i.e. up to the end of vegetative stage, up to the mid of generative stage and up to harvest as sub-plot under Split Plot Design were the sub plots. The result showed that all varieties had no capacity to stand under limited water in different time of water application. Physiological response showed higher values in CGR, RGR and water absorption under water application up to harvest than others. Number of tiller, total leaf area, root dry weight and total root length had similar trend except on plant height.
Removal of chromium from chromium-contaminated soil and physiological response of shallot (Allium ascalonicum L.) on treatments of biochar and mycorrhizae Okti Herliana; Yugi R Ahadiyat; Wilis Cahyani; A H Syaeful Anwar
Journal of Degraded and Mining Lands Management Vol 10, No 1 (2022)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2022.101.3953

Abstract

Food safety and soil degradation were the reasons to treat contaminated soil. Shallots are high-value commodities, so cultivation is carried out intensively. Continuous use of agrochemicals can cause heavy metal contamination. This study aimed to investigate chromium removal, physiological characters, and yield of shallot (Allium ascalonicum L.) on biochar and mycorrhizae application on chromium-contaminated soil. A pot experiment was conducted at the screen house ex-farm of the Faculty of Agriculture, Jenderal Soedirman University. The treatments tested consisted of two factors. The first factor was biochar dosage (B) consisting of 4 levels, i.e., B0 = without biochar, B1 = 1.2 g biochar kg-1 of soil, B2 = 2.4 g biochar kg-1 of soil, and B3 = 4.8 g biochar kg-1 of soil. The second factor was mycorrhizae inoculation consisting of 3 levels, i.e., M0 = without mycorrhizae, M1 = 0.1 g mycorrhizae kg-1 of soil, M2= 0.2 g mycorrhizae kg-1 of soil. The twelve treatments were arranged in a randomized block design with three replications. The results showed that the application of 1.2 g, 2.4 g, and 4.8 g biochar kg-1 of soil had been able to increase plant height and the percentage of root infection. The application of mycorrhizae 0.1 g and 0.2 g mycorrhizae kg-1 of soil was able to increase plant height, percentage of root infection, and plant tissue P uptake. Both applications of biochar and mycorrhizae increased plant height and the percentage of root infection by mycorrhizae.
Penerapan Sistem Pertanian Organik di Kelompok Tani Tani Makmur 3 Desa Sokawera Kecamatan Padamara Yugi R. Ahadiyat; Ahmad Fauzi; Okti Herliana; Ida Widiyawati
Jurnal Pengabdian Masyarakat Indonesia Vol 2 No 6 (2022): JPMI - Desember 2022
Publisher : CV Infinite Corporation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52436/1.jpmi.879

Abstract

Permasalahan adanya degradasi lahan akibat aplikasi pupuk dan pestisida sitentik menyebabkan kebutuhan masyarakat terhadap pangan sehat seperti beras semakin meningkat. Untuk merespon tren tersebut diperlukan proses konversi dari sistem pertanian konvensional menjadi organik. Proses konversi ini diawali dari peningkatan pemahaman petani terhadap sistem pertanian organik serta membangun pola pikir yang berorientasi pada pelayanan lingkungan. Kegiatan ini bertujuan untuk mendampingi kelompok tani Tani Makmur 3 Desa Sokawera dalam proses konversi menuju sistem pertanian padi organik. Metode kegiatan meliputi tahapan penyuluhan dasar pertanian organik dan demplot padi organik. Demplot yang dilakukan dengan aplikasi pupuk organik urin kelinci sebagai pupuk dan pestisida nabati. Hasil kegiatan menunjukan adanya peningkatan pemahaman petani dalam sistem pertanian organik dan produksi padi yang cukup tinggi yaitu 5,6 t/ha di musim tanam pertama dengan sistem organik.
Evaluasi Penerapan Sistem Budidaya Padi Organik di Kecamatan Petarukan, Kabupaten Pemalang Ahmad Fauzi; Yugi R Ahadiyat
Biofarm Jurnal Ilmiah Pertanian Vol 19, No 2 (2023): BIOFARM JURNAL ILMIAH PERTANIAN
Publisher : Universitas Pekalongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31941/biofarm.v19i2.3425

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The organic agriculture system is a sustainable farming practice that has a promising solution for the sake of both food and the environment. Nevertheless, the adoption of organic systems in rice cultivation has been slowly developing due to some constraints for the lower yield than that of conventional systems. Rice production in the Pemalang region has mainly been cultivated in the district of Petarukan where some farmer grows in an organic system. This study was conducted to compare soil chemical properties i.e. pH, C-organic, N, P, and K in organic, conventional, and conversion systems of rice cultivation. In addition to the survey for collecting soil samples, the history of land management was investigated through farmer interviews. Soil samples were collected from each management type in 5 different locations using the composite sampling technique. The observed soil chemical parameters were statistically analyzed using one-way ANOVA and Tukey-test for further comparison. The result shows that the C-organic, pH, and N-total of three different cultivation systems were not different. On the other side, there was a difference among cultivation systems in P and K of the soil. This result indicates that there is a gap to fill to improve organic rice yield through enhancing soil organic matter.
Cekaman Genangan dan Pemberian Pupuk N, P, K terhadap Pertumbuhan dan Hasil Tanaman Jewawut (Setaria italica L) di Inceptisols Ahadiyat, Yugi R.; Rif’an, Muhammad; Alam, Surya Nur
Agrikultura Vol 34, No 2 (2023): Agustus, 2023
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/agrikultura.v34i2.42795

Abstract

Genangan merupakan salah satu stress abiotik yang dapat memengaruhi hasil panen tergantung frekuensi dan luasnya genangan, serta jenis tanaman. Penelitian ini bertujuan untuk mengetahui pengaruh dan interaksi cekaman genangan dan pemberian pupuk N, P, K terhadap pertumbuhan dan hasil tanaman jewawut di Inceptisols. Penelitian dilaksanakan di greenhouse Fakultas Pertanian Universitas Jenderal Soedirman pada bulan April sampai Desember 2020. Penelitian ini menggunakan percobaan faktorial yang disusun dalam Rancangan Acak Kelompok Lengkap (RAKL) dengan dua faktor perlakuan, yaitu empat taraf dosis pupuk N, P, K (N, P, K = 25%, 50%, 75%, 100%) dan empat taraf tingkat genangan (tanpa genangan, genangan 1 – 2 cm, genangan 2 – 3 cm, genangan 4 – 5 cm) dan diulang sebanyak tiga kali. Variabel pengamatan terdiri dari tinggi tanaman, luas daun, bukaan stomata, kerapatan stomata, umur berbunga, umur panen, panjang malai, bobot malai, bobot basah tanaman, bobot kering tanaman. Terdapat interaksi antara perlakuan dosis pupuk N, P, K dengan tingkat genangan pada variabel luas daun, bukaan dan kerapatan stomata. Perlakuan tingkat genangan secara mandiri mempengaruhi variabel tinggi tanaman, bobot basah dan bobot kering tanaman, serta karakter hasil yaitu umur berbunga, umur panen, panjang dan bobot malai. Cekaman genangan menyebabkan terjadinya penurunan pada karakter pertumbuhan, fisiologis maupun karakter hasil pada tanaman jewawut. Penurunan terbesar terjadi pada karakter bobot basah tanaman (81,6%), bobot kering tanaman (80,1%), dan bobot malai (89,6%).
Morphophysiological characteristics of upland rice plants with organic approach through reduced NPK fertilizer and wood vinegar application Ahadiyat, Yugi R; Fauzi, Ahmad
Kultivasi Vol 22, No 3 (2023): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v22i3.48057

Abstract

 Unefficient use of synthetic fertilizer in upland rice production leads to  the low productivity and tends to harm the environtment. An organic approach by using wood vinegar is promising to improve the fertilizer efficiency.  The objective of this study was to determine the response of upland rice with the application of different wood vinegar and synthetic fertilizer N-P-K rates on morpho-physiological characters. A split plot design with the main plot of N-P-K fertilizer and a subplot of wood vinegar was applied with three replications. Growth and physiological character were observed. The data were analyzed by the F test, then proceed with the Duncan Multiple Range Test at p≤0.05. The results showed that a half and full recommended synthetic fertilizer rate of N-P-K had a similar result to gaining optimum morpho-physiological character of upland rice. Wood vinegar with a rate of 75 L ha-1 obtained the highest performance on morpho-physiological character of upland rice. An increasing application rate of wood vinegar improved the morpho-physiological character of upland rice at different rates of N-P-K synthetic fertilizers.