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Aplikasi Pupuk Hayati Illetrisoy pada Tanaman Kedelai dan Pengaruhnya terhadap Populasi Mikroba Tanah Prihastuti, Prihastuti
Sains & Matematika Vol 2, No 1 (2013): Oktober, Sains & Matematika
Publisher : Sains & Matematika

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Abstract

Illetrisoy is a biological fertilizer for soybeans, improvised by Indonesian Legume and Tuber Crops Research Institute, consisting in two forms of formulations A and B. This study aimed to determine the benefits of Illetrisoy bio-fertilizer application on growth and seed yield, as well as its effect on soil microbial populations.� � � � � � � � � � The research was conducted at the Indonesian Legume and Tuber Crops Research Institute, using of biological fertilizers Illetrisoy and soybean Grobogan variety. Design of the experiment used was a factorial randomized block with six replications. The first factor was the manure application consists of (1) without any manure, and (2) given manure. The second factor is giving inoculant Illetrisoy, consisting of (1) without inoculant, given inorganic fertilizer P, K, (2) without inoculant, given inorganic fertilizer N, P and K, (3) inoculation Illetrisoy A, and (4) inoculation Illetrisoy B. The results showed that the application of bio-fertilizers Illetrisoy on soybean has not significant effect on the physical variability of plants 45 days after planting and seed yield, compared to the treatment of manure and NPK application. The highest seed yields achieved on the application of Illetrisoy B accompanied with the application of manure and NPK fertilizer reached 50% (19.20 g seed/plant), which is not significantly different from the standard cultivation with application of NPK fertilizers which reached 18.43 g seed / plant. The analysis of the soil before and after soybeans planted, showed an improvement of chemically and biologically soil properties in terms of nutrient content (especially N and K) and total soil microbial population up to a hundred times.
Kajian Penggunaan Pupuk Hayati Kemasan untuk Tanaman Kacang Tanah di Lahan Kering Masam, Lampung Prihastuti, Prihastuti; Purwantoro, Purwantoro
Sains & Matematika Vol 3, No 1 (2014): Oktober, Sains & Matematika
Publisher : Sains & Matematika

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Abstract

Penggunaan pupuk hayati merupakan suatu pilihan untuk dilakukan dalam upaya meningkatkan penyediaan unsur hara tanaman, terutama yang ditanam pada lahan-lahan marjinal. Tujuan penelitian ini untuk mendeskripsikan pengaruh penggunaan pupuk hayati kemasan untuk tanaman kacang tanah. Penelitian menggunakan rancangan acak kelompok dengan enam jenis pupuk hayati yang diberikan secara tunggal ataupun kombinasi, masing-masing dengan tiga ulangan. Parameter yang diamati adalah tinggi tanaman, hasil polong, dan jumlah polong. Analisis kimia tanah sebelum tanam meliputi pH, C-organik, N, P, K, Ca, Mg, Al-dd, H-dd. Parameter biologis yang diamati adalah jumlah bintil akar dan tingkat infeksi mikoriza pada akar, dengan jumlah sampel tiga tanaman untuk masing-masing ulangan. Analisis data menggunakan analisis varians dilanjutkan dengan uji beda nyata terkecil (BNT). Hasil penelitian menunjukkan bahwa mikrob yang diintroduksikan melalui pupuk hayati kurang dapat berkembang dengan baik, yang diikuti dengan pertumbuhan tanaman yang kurang baik pula. Ketersediaan air merupakan faktor pembatas bagi perkembangan mikrob dan tanaman sehingga pertanian di lahan kering perlu disesuaikan dengan musim. Rendahnya pH tanah menghambat pertumbuhan bakteri pembentuk bintil akar. Penggunaan pupuk hayati yang tidak sesuai dengan kondisi lapang, sekalipun tanaman kacang tanah mampu membentuk polong, namun tidak mampu membentuk biji. Pupuk hayati yang direkomendasikan untuk digunakan di lahan kering masam adalah yang mengandung bakteri pelarut fosfat dan mikoriza vesikular arbuskular. The use of bio-fertilizers is an option to conduct in the effort improving the supply of plant nutrients, especially those planted on marginal lands. The aim this study was to determine the effect of the use of commercial biological fertilizers for peanut at acid dry land. This research used a randomized complete block design with six types of commercial biological fertilizers given in single use or in combination, each was applied in three replications. Parameters measured were plant height, pod yield, and the number of pods. Chemical analysis of the soil before planting include pH, C-organic, N, P, K, Ca, Mg, Al-dd, H-dd. Biological parameters measured were the number of nodule and level of the mycorrhizal root infection, the number of samples were three plants for each replication. Data were analyzed using analysis of variance (ANOVA) and followed by least signifi cant difference test (LSD). Results showed that the microbes that were introduced through bio-fertilizers were less well developed, followed by the growth of plants that were less good anyway. Water availability was a limiting factor for the development of microbes and plants, hence agriculture in dry land needs to be adjusted with the seasons. The low acidity of the soil inhibited the growth of nodule-forming bacteria. The use of biological fertilizer was not correspond to field conditions, even though peanut plants are capable of forming pods, however they are not capable to form a seed. Biological fertilizer that are recommended for usage on acid dry land is contained phosphate solubilizing bacteria and vesicular arbuscular mycorrhizae.
PROFIL RESILIENSI PENDIDIK BERDASARKAN RESILIENCE QUETIENT TEST Prihastuti, Prihastuti
Jurnal Penelitian dan Evaluasi Pendidikan Vol. 15 No. 2 (2011)
Publisher : Graduate School, Universitas Negeri Yogyakarta in cooperation with Himpunan Evaluasi Pendidikan Indonesia (HEPI) Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/pep.v15i2.1102

Abstract

Penelitian ini bertujuan untuk memperoleh gambaran umum profile resiliensi pendidik Fakultas Psikologi Unair mela-lui Resilience Quotient Test (RQ). Instrumen yang digunakan adalah Resilience Quotient Test, yang terdiri 56 item. Resilience Quotient Test memuat 7 faktor, yaitu: emotional regulation, impulse control, emphati, optimism, causal analysis, self-efficacy dan reaching-out. Analisis profile resiliensi dilakukan berdasarkan perbandingan nilai rata-rata dari masing-masing faktor dengan nilai acuan yang sudah ditentukan dalam Resilience Quotient Test. Hasil penelitian menunjukkan 2 faktor berada pada kategori di atas rata-rata (impulse control dan optimism), 3 faktor berada pada kategori rata-rata (empathy, causal analysis dan reaching-out) dan 2 faktor berada pada kategori di bawah rata-rata (emotional regulation dan self-efficacy). Dua faktor yang berada pada kategori di atas rata-rata, yaitu impulse control dan optimism belum menunjukkan hasil yang mantap karena tidak didukung oleh faktor lainnya yang berada pada system belief yang sama, yaitu emotional regulation dan self-efficacy. Oleh karena itu, impulse control yang berlawanan dengan emotional regulation serta optimism yang berlawanan dengan self-efficacy perlu dikaji lebih dalam. Kata kunci: profile resiliensi pendidik______________________________________________________________   EDUCATORS' RESILIENCE PROFILE BASED ON THE RESILIENCE QUOTIENT TEST Abstract This research aims to obtain an overview of profile resi-lience educators of the Faculty of Psychology Unair through the Resilience Quotient Test (RQ). The instrument used was the Resilience Quotient Test, which comprised 56 items. The test of the Resilience Quotient included seven factors, namely emotional regulation, impulse control, empathy, optimism, cau-sal analysis, self-efficacy and Reaching-out. The analysis of pro-file resilience was based on comparison of the average value of each factor with a predetermined reference value in the Resi-lience Quotient Test. The results show that two categories of factors are above average (impulse control and optimism), 3 factors are in the average category (empathy, causal analysis and Reaching-out) and the second factor is in the category below the average (emotional regulation and self-efficacy). Two fac-tors that are on the above average categories, namely impulse control and optimism, have not been steady because they are not supported by other factors that are on the same belief system, namely emotional regulation and self-efficacy. There-fore, impulse control as opposed to emotional regulation and optimism as opposed to self-efficacy needs to be studied more deeply. Keywords: profile resilience educators
EVALUASI INPUT AGEN HAYATI PADA UJI PAKET TEKNOLOGI BUDIDAYA KEDELAI DI LAHAN KERING MASAM LAMPUNG TENGAH Prihastuti, Prihastuti; Sudaryono, Sudaryono
Agrin Vol 12, No 1 (2008): Agrin
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.agrin.2008.12.1.79

Abstract

Dalam upaya meningkatkan produktivitas lahan kering masam mutlak diperlukan introduksi mikroba.Agen hayati merupakan sel mikroba yang bermanfaat untuk pertumbuhan tanaman, di mana aktivitasnyaditentukan oleh kondisi lingkungan tumbuhnya. Penelitian ini bertujuan untuk melakukan evaluasi terhadap duajenis agen hayati, yaitu (A) yang berisi bakteri Rhizobium, Azospirillum dan Aspergillus niger, dan (B) yangberisi jamur mikoriza vesikular-arbuskular, pada uji paket teknologi budidaya kedelai di lahan kering masamLampung Tengah. Hasil penelitian menunjukkan bahwa terdapat interaksi dalam pemberian agen hayati terhadappertumbuhan tanaman dan hasil biji. Pemberian agen hayati (A) secara tunggal tidak meningkatkan hasil biji,sedangkan pada pemberian agen hayati (B) dapat meningkatkan hasil biji 10,88% dan pada pemberian keduanyameningkatkan hasil biji sekitar 5,18% daripada kontrol. Faktor lingkungan tumbuh mikroba merupakan penentukeberhasilan introduksi suatu agen hayati. Adanya perbedaan tanggap tanaman kedelai terhadap agen hayati Adan B menunjukkan bahwa pada aplikasi agen hayati perlu diperhatikan kondisi lahan yang berfungsi sebagaimedia untuk tumbuh dan beraktivitas bagi mikroba yang terkandung di dalamnya.Kata kunci: agen hayati, hasil biji, kedelai, lahan kering masam ABSTRACTAn effort to improve the productivity of dry acid soil is necessarily need microorganism inputs. The soilmicroorganism cells have an important role on the plant growth, where their activity is determined by thecondition of environmental growth. Field trial to evaluate two biological agents, i.e (A) consist of Rhizobium,Azospirillum and Aspergillus niger, and (B) consist of vesicular-arbuscular mycorrhyzae was conducted onintegrated crop management of soybean on dry acid soil in Central Lampung. The result showed that theintroduction of the agent was significantly affected on soybean growth and seed yield. In single application ofbio-agent A did not increase seed yield, however the bio-agent B increasing seed yield by 10.88%, and theircombination increasing 5.18% higher than control. The environmental conditions for the microorganism growthare determine by the development of soil microorganism. The different responses of soybean to bio-agent A andbio-agent B was suggested that the soil conditions as the medium of soil microorganism development should beunderstood.Key words: biological agent, seed yield, soybean, acid dry land
UJI SINERGISME MIKROBA DALAM PUPUK HAYATI KEMASAN TERHADAP PERTUMBUHAN DAN HASIL KACANG TANAH DI LAHAN KERING NON MASAM, GRESIK Prihastuti, Prihastuti; Radjit, Budhi S.
Agrin Vol 17, No 1 (2013): Agrin
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.agrin.2013.17.1.197

Abstract

Penelitian dilaksanakan di Desa Bolo, Kecamatan Ujung Pangkah, Kabupaten Gresik pada MK II 2010,bertujuan untuk mengetahui pengaruh aplikasi pupuk hayati komersial terhadap pertumbuhan mikroba tanah danhasil kacang tanah di lahan kering non masam, yang diberikan secara tunggal maupun ganda. Penelitiandilakukan dengan rancangan acak kelompok dengan tiga ulangan. Ada 6 (enam) jenis pupuk hayati komersialyang digunakan, dengan dosis pemakaian sesuai anjuran dari produsen masing-masing. Varietas kacang tanahyang digunakan dalam penelitian ini adalah varietas Jerapah, ditanam dalam plot 4 m x 4 m, dengan jarak tanam4 cm x 10 cm, 1 biji/lubang. Hasil penelitian menunjukkan, aplikasi agensia hayati mampu menaikkan totalmikroba tanah hingga sepuluh kali-nya, tanpa memperhatikan jenis mikroba yang mampu berkembang. Aplikasiagensia hayati yang mengandung mikroba penambat N non simbiotik, bakteri pelarut P, dan mikrobadekomposer memberikan hasil paling tinggi sebesar 21,40 % dibanding dengan kontrol. Aplikasi agensia hayatisecara ganda di lahan kering non masam tidak menunjukkan hasil yang lebih baik dibandingkan dengan aplikasitunggal, baik dalam peningkatan populasi mikroba tanah maupun hasil biji kacang tanah.Kata kunci: sinergisme, agensia hayati, kacang tanah, hasil biji, mikrobaABSTRACTThe experiment was conducted at Bolo, Ujung Pangkah, Gresik district, in dry season 2010. Thepurposed of the study was to determine the effect of bio-fertilizer applications wether that in single or double onnon-acid dry land to the growth of soil microbes and yield of peanuts. A randomized block design with threereplications was used in this experiment. The treatment consist of 6 (six) types of commercial bio-fertilizers, withthe dosage recommended of each manufacturer. Jerapah variety was planted at plot size 4 m x 4 m, plantspacing 40 x 10 cm, one seed per hole. The results showed that the application of bio-fertilizer was capable toincrease total soil microbial up to ten times, regardless of the microbial types. The application of biologicalagent which contain non symbiotic N fixation microbial, P solubilizing bacterial, and decomposers microbialhad ability to increase the seed yield by 121.40% compared to control. In double application of biologicalagents in non-acid dry land was not showed better results than single application, both in improving soilmicrobial population or the yield.Key words: synergism, biological agent, peanut, seed yield, microbe
Pengaruh Mental Toughness dan Kecerdasan Emosi terhadap Kecemasan Olahraga pada Atlet Basket SMA Cita Hati Surabaya dalam Menghadapi Event DBL Oktaviani, Nabila Rahmi; Prihastuti, Prihastuti
EduInovasi:  Journal of Basic Educational Studies Vol. 4 No. 2 (2024): EduInovasi:  Journal of Basic Educational Studies (In Press)
Publisher : Intitut Agama Islam Nasional Laa Roiba Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47467/edu.v4i2.2309

Abstract

The purpose of this study was to determine the effect of mental toughness and emotional intelligence on exercise anxiety. This study uses a quantitative approach with an asymmetric regression research design. In this study, a sample of 24 basketball athletes from Cita Hati Surabaya High School was used with a sampling technique, namely purposive sampling. Data analysis used multiple regression analysis techniques anxiety. Multiple regression analysis revealed that F = 1.874 with a significance of 0.178 > 0.05 was not significant. Arinya, you stated that mental toughness and emotional intelligence have no effect on sports anxiety. While partially on the mental toughness variable, the value of t = -1.546 is obtained with a significance of 0.137 > 0.05, not significant. This means that the mental toughness variable partially has no significant effect on the sports anxiety variable. In the emotional intelligence variable, the value of t = -0.888 is obtained with a significance of 0.385 > 0.05, which is not significant. This means that the emotional intelligence variable partially has no significant effect on the sports anxiety variable.
Perception of Classroom Activity, Sense of Belonging, and Self-Regulated Learning in Students Taking Online Learning Amaliyah, Ayu; Yoenanto, Nono Hery; Prihastuti, Prihastuti
Psikostudia : Jurnal Psikologi Vol 12, No 2 (2023): Volume 12, Issue 2, Juni 2023
Publisher : Program Studi Psikologi, Fakultas Ilmu Sosial dan Ilmu Politik, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/psikostudia.v12i2.10212

Abstract

This study aims to examine the influence of perceptions of classroom activities on self-regulated learning (SRL) through sense of belonging (SoB) as a mediator variable in students who take part in online learning. This urgency arises when students' need for SRL skills becomes important in the implementation of distance learning online. A total of 209 students at universities in Surabaya participated in filling out the online questionnaire. The data was analyzed quantitatively using the Partial Least Square technique. This study used three scales, namely My Class Activities Scale, Perceived Student Belonging Scale, and Online Self-regulated learning Questionnaire (OSLQ). The findings showed that the perception of classroom activity had a significant influence on SRL through SoB as a mediator. Students' perceptions of their classroom activities will influence their feelings of belonging to and connected to their learning institution. Students who are connected to their institution will then tend to manage and organize their own learning. The results of this study have implications for the environmental and social importance in helping students to develop effective SRL strategies.Penelitian ini bertujuan untuk menguji pengaruh persepsi aktivitas kelas terhadap self-regulated learning (SRL) melalui sense of belonging (SoB) sebagai variabel mediator pada mahasiswa yang mengikuti pembelajaran daring. Urgensi ini muncul ketika kebutuhan mahasiswa akan kemampuan SRL menjadi penting dalam pelaksanaan pembelajaran jarak jauh dalam jaringan (daring). Sebanyak 209 mahasiswa di perguruan tinggi di Surabaya berpartisipasi dalam pengisian kuesioner daring. Data dianalisis secara kuantitatif menggunakan teknik Partial Least Square. Penelitian ini menggunakan tiga skala yaitu Skala My Class Activities, Skala Perceived Student Belonging, dan Online Self-regulated learning Questionnaire (OSLQ). Hasil temuan menunjukkan bahwa persepsi aktivitas kelas memiliki pengaruh signifikan terhadap SRL melalui SoB sebagai mediator. Persepsi mahasiswa mengenai aktivitas kelasnya akan mempengaruhi perasaan menjadi bagian dan terhubung dengan institusi belajarnya. Mahasiswa yang terhubung dengan institusinya kemudian akan cenderung mengelola dan mengatur pembelajarannya sendiri. Hasil penelitian ini berimplikasi pada pentingnya lingkungan dan sosial dalam membantu mahasiswa untuk mengembangkan strategi SRL yang efektif.
Pengaruh Antara Social Comparison terhadap Body Dissatisfaction pada Mahasiswi Pengguna Instagram di Program Studi Profesi Psikolog Fakultas Psikologi Universitas Airlangga Agustin, Desti; Prihastuti, Prihastuti; Andriani, Fitri
Jurnal Simki Pedagogia Vol 8 No 2 (2025): Volume 8 Nomor 2 Tahun 2025
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/jsp.v8i2.1118

Abstract

This study aims to identify the influence of social comparison on body dissatisfaction among female students who use Instagram in the Professional Psychology Program at the Faculty of Psychology, Universitas Airlangga. The instruments used were the Social Comparison Scale adapted from O’Brien and the Body Dissatisfaction Scale based on the aspects defined by Rosen & Reiter. This research employed a quantitative approach with a survey method involving 54 respondents, selected using total sampling. Data analysis was conducted using simple linear regression with SPSS version 16.0. The results showed that social comparison did not have a significant effect on body dissatisfaction (p > 0.05). These findings indicate that social comparison is not a primary factor influencing body dissatisfaction among social media users in this study. The results highlight the importance of considering other components, such as self-esteem and coping mechanisms, when discussing body dissatisfaction among social media users.