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MANAGEMENT ALLOWABLE DEPLETION (MAD) LEVEL FOR WATER USE EFFICIENCY OF CHILI ON TYPIC KANHAPLUDULTS AT TAMANBOGO, LAMPUNG HARYATI, UMI; SINUKABAN, N; MURTILAKSONO, K; ABDURACHMAN, ADI
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 31 (2010): Juli 2010
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n31.2010.%p

Abstract

Water scarcity is the main factor causing crop production decrease and harvest failure in the upland areas. To improve water use efficiency by plants, Management Allowable Depletion (MAD) concept can be applied. MAD is the degree of soil dryness that still lead to optimum crop yied. This research was aimed to: 1) determine a correct MAD-level in order to achieve the optimum water use efficiency and 2) evaluate the effect of irrigation water sources on water use efficiency. The research was carried out on a Typic Kanhapludults at Tamanbogo Experimental station, East Lampung in dry season of 2005. Chili (Capsicum annum) was use as an indicator crop. The size of experimental plot was 5 x 10 m, that was arranged in split-plot design with 3 replications. The treatments were irrigation water sources designed as main plot which consisted of: A1 = ground water A2 = surface water, while MAD-level was designed as sub-plot, which consisted of : I1 = 20% of available water, I2 = 40% of available water, I3 = 60% of available water, I4 = 80% of available water, and I5 = 100% of available water. Irrigation was provided to reach 80, 60, 40, and 20% available water respectively. For the I5 treatment, irrigation was applied every day. The results showed that MAD-level of 60% of available water (I3) with the average of 9.6 mm of irrigation water, applied every three days, gave themost optimum crop yield and water use, thus achieving the highest water use efficiency. The surface irrigation water had a better quality than ground water,leading to a better plant growth, a higher crop yield and a higher water use efficiency than ground water
The Effect of Students' Perceptions of Career Information Services on Students’ Career Decision Making Self-Efficacy Haryati, Umi; Purwanto, Edy; Awalya, Awalya
Jurnal Bimbingan Konseling Vol 10 No 2 (2021): August 2021
Publisher : Study Program of Guidance and Counseling, Postgraduate Program, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jubk.v10i2.50461

Abstract

Lack of information related to education, position, or work that matches students' abilities is one of the obstacles that cause students unable to make appropriate career decisions. The purpose of this study was to empirically examine the effect of students' perceptions of career information services on career decision making self-efficacy. It involved 108 SMK students selected by quota random sampling technique. The data analysis technique used was simple linear regression analysis with the help of SPSS 24. The results showed that there was a significant relationship between students' perceptions of career information services on career decision making self-efficacy by 16% (β = 0.40, p < 0.01). The quality of good career information services will affect the self-efficacy of good career decision making.
The Effect of Students' Perceptions of Career Information Services on Students’ Career Decision Making Self-Efficacy Haryati, Umi; Purwanto, Edy; Awalya, Awalya
Jurnal Bimbingan Konseling Vol 10 No 2 (2021): August 2021
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jubk.v10i2.50461

Abstract

Lack of information related to education, position, or work that matches students' abilities is one of the obstacles that cause students unable to make appropriate career decisions. The purpose of this study was to empirically examine the effect of students' perceptions of career information services on career decision making self-efficacy. It involved 108 SMK students selected by quota random sampling technique. The data analysis technique used was simple linear regression analysis with the help of SPSS 24. The results showed that there was a significant relationship between students' perceptions of career information services on career decision making self-efficacy by 16% (β = 0.40, p < 0.01). The quality of good career information services will affect the self-efficacy of good career decision making.
Tanah Gambut dan Estimasi Cadangan Karbon di Kabupaten Kutai Kartanegara, Kalimantan Timur Sukarman Sukarman; Umi Haryati
Jurnal Agroekoteknologi Tropika Lembab Vol 4, No 1 (2021): Agroekoteknologi Tropika Lembab Volume 4 Nomor 1 Agustus 2021
Publisher : Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35941/jatl.4.1.2021.5792.%p

Abstract

Untuk mendapatkan informasi sifat dan karakteristik tanah gambut, Balai Besar Litbang Sumberdaya Lahan Pertanian telah melaksanakan pemetaan tanah gambut dan perhitungan karbon stok pada tingkat semi detail (skala 1:50.000) di Kabupaten Kutai Kartanegara. Metode pemetaan tanah gambut mengacu pada SNI 7925:2013, SNI 8473:2018, dan Juknis Pemetaan Tanah Semidetail skala 1:50.000. Tanah gambut di Kabupaten Kutai Kartanegara meliputi luas 110.094 ha yang tersebar di lima kecamatan, yaitu Kecamatan Kembang Janggut, Kenohan, Kotabangun, Muara Kaman, dan Muara Wis. Tanah gambut yang dijumpai tergolong gambut dangkal sampai sangat dalam (50-<500 cm). Lapisan substratum di bawah tanah gambut berupa tanah mineral bertekstur liat berdebu, lempung berdebu, lempung dan lempung berpasir. Gambut yang dijumpai mempunyai tingkat kematangan fibrik, hemik dan saprik, yang paling dominan tergolong hemik. Reaksi tanah sangat masam hingga masam (pH 4,0-5,5), KTK tinggi sampai sangat tinggi, dan kejenuhan basa sangat rendah. Berdasarkan hasil perhitungan, cadangan karbon di Kabupaten Kutai Kartanegara sebanyak 114,9 juta ton C dengan rata-rata per hektar mencapai 1.172 ton.
SOIL PHYSICAL PROPERTIES AND PRODUCTION OF UPLAND ULTISOL SOIL Yoyo Soelaeman; Umi Haryati
AGRIVITA, Journal of Agricultural Science Vol 34, No 2 (2012)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v34i2.122

Abstract

Acid upland soil in Indonesia has a great potential for agricultural development but the soil physical properties have been degraded. The use of manure and direct application of Gresik phosphate rock (PR) was an alternative to improve land productivity and crop yields. The objective of the study was to evaluate the effects of manure and P sources on soil physical  properties and yield of foods crop that was arranged on intensive cropping systems of upland rice + maize -/- cassava- mungbean. The experiment was carried out in Tamanbogo Station Farm, East Lampung since 2007 until 2009 using randomized complete block design with 3 replications. The treatments were (1) 10 t ha-1 manures+1 t ha-1 of PR, (2) Without manure+1 t ha-1 of PR, (3) 10 t ha-1 manures+100 kg ha-1 of SP 36, and (4) Without manure+100 kg ha-1 of SP 36. The results showed that the application of manure along with PR improved soil physical characteristics of ultisol soil and gave the highest yield of foods crops with B/C in year 3th was 3.60.   
HUBUNGAN ANTARA PENGUASAAN KOSAKATA DAN KEMAMPUAN PRAGMATIK PADA ANAK AUTISME SPECTRUM DISORDER HARYATI, UMI; Gunawan, Gunawan; Pratomo, Hafidz Triantoro Aji
Jurnal Kesehatan Tambusai Vol. 6 No. 1 (2025): MARET 2025
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jkt.v6i1.42529

Abstract

Seorang dengan autisme spectrum disorder seringkali menghadapi kesulitan dalam berkomunikasi secara verbal. Komunikasi yang digunakan anak autisme biasanya lebih mengandalkan bahasa tubuh dan interaksi singkat, hal tersebut tidak mengindikasikan bahwa anak-anak dengan autisme tidak mampu berkomunikasi, mereka hanya membutuhkan kosakata yang mencukupi untuk bisa berkomunikasi. Tujuan dari penelitian ini untuk mengetahui hubungan antara penguasaan kosakata dan kemampuan pragmatik pada anak Autisme Spectrume Disorder. Metode korelasional diterapkan dalam penelitian ini, yang digunakan untuk mengetahui gambaran hubungan antar variabel pada penelitian, dengan menggunakan desain penelitian Cross Sectional serta menerapkan teknik pengambilan sampel Purposive Sample dimana peneliti melakukan pengambilan data dengan memberi lembar kuesioner kepada orang tua responden yang memenuhi kriteria, kemudian data hasil kuantitatif akan dianalisis dengan pendekatan univariat dan bivariat menggunakan Spearmen Rank.  Berdasarkan analisis data yang dilakukan didapatkan hasil signifikan pada tingkat kepercayaan 1% (α = 0.01). Hasil ini mengindikasikan hasil uji korelasi anatara total penguasaan kosakata dan kemampuan pragmatik, menunjukan hasil korelasi Spearman sebesar 0.940. Ini menunjukkan adanya keterkaitan yang sangat kuat dan positif antara Total Jumlah Kosakata dan Kemampuan Pragmatik Nilai korelasi Spearman sebesar 0.940. Ini menunjukkan bahwa adanya hubungan yang sangat kuat dan positif antara penguasan Kosakata dan Kemampuan Pragmatik. Ini menunjukkan semakin tinggi Total Jumlah Kosakata, sehingga semakin tinggi nilai Kemampuan Pragmatik.
Quality of Soil and Yield of Food Crops in Ultisols Due to Application of Manure and Source of Phosphate Fertilizer Soelaeman, Yoyo; Haryati, Umi
JOURNAL OF TROPICAL SOILS Vol. 17 No. 1: Januari 2012
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2012.v17i1.45-52

Abstract

Acid upland soil in Indonesia has a potential for agricultural development but it has constraints low of organic C and available P as well as the soil physical properties have been degraded. The use of manure and direct application phosphate rock (PR) was an alternative to improve land productivity and crop yields. The objective of the study was to examine the effects of manure and the sources of P on soil physical and chemical properties and yield of foods crop that was arranged on intensive cropping systems of upland rice + maize -/- cassava- mungbean. The experiment was carried out at Tamanbogo Station Farm, East Lampung since 2007 until 2009 using randomized completely block design with 3 replications. The treatments were (1) 10 Mg ha-1 manures + 1 Mg ha-1 of RP, (2) without manure + 1 Mg ha-1 of PR, (3) 10 Mg ha-1 manures + 100 kg ha-1 SP 36, and (4) without manure + 100 kg ha-1 SP 36. The results showed that the application of manure along with PR improved soil chemical and physical characteristics. Its improvement affected the yield of foods crops, hence the profit increased with B/C ratio between 2.88-3.60.
The Effectiveness and Valuation of Using Silt Pit to Reduce Erosion and Nutrient Loss of Andosol Masnang, Andi; Jannah, Asmanur; Andriyanty, Reny; Haryati, Umi
JOURNAL OF TROPICAL SOILS Vol. 27 No. 1: January 2022
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2022.v27i1.27-35

Abstract

The silt pit is a method of soil management that functions to accommodate and absorb surface runoff. The research aimed to determine the silt pit effectiveness for erosion reduction and nutrient loss. The research is located at 576 above sea level (asl) in Sukamantri village, Taman Sari district, Bogor Regency. The experiment used a randomized block design with three replications and a slope group. The treatments were R0 (without silt pit); R1 (silt pit); R2 (silt pit + mulch); R3 (silt pit + mulch + biopore tube), R4 (silt pit + mulch + biopore tube + vertical crop tube). The highest runoff-decreasing occurred on R4 treatment, which pressed down 29.38% runoff. The highest value of erosion-decreasing occurred on R2 as 68.74% and followed by effectiveness in reducing the loss of 71% Organic C, 76% available P, and 67% total N. The dry seeds peanut yield was around 0.54 - 0.86 Mg ha-1, dried pods was 0.96 - 1.33 Mg ha-1, and dried biomass was 5.16 - 6.23 Mg ha-1 and not significantly different between all treatments. This study recommends that farmers apply silt pit innovation technology with a combination of mulch, biopore, and mature green media because the incremental B/C ratio was 1.175. It is a good economic indicator for farmers.
Improving Soil Properties and Increasing Shallot Bulb Yield by Mulching and Soil Amendment Application Haryati, Umi; Erfandi, Deddy
Jurnal Hortikultura Indonesia (JHI) Vol. 10 No. 3 (2019): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (388.225 KB) | DOI: 10.29244/jhi.10.3.200-213

Abstract

Tanah di lahan kering merupakan lahan yang terdegradasi. Oleh karena itu diperlukan perbaikan kualitas tanah tersebut. Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan mulsa dan bahan pembenah tanah dalam memperbaiki sifat fisik dan kimi tanah serta kaitannya dalam meningkatkan produksi bawang merah. Penelitian aplikasi mulsa dan pembenah tanah pada pertanaman bawang merah dilaksanakan pada bulan Maret sampai Juni musim tanam (MT) 2016 di Desa Bayongbong, Kecamatan Bayongbong, Kabupaten Garut, Provinsi Jawa Barat. Rancangan percobaan yang digunakan adalah petak terpisah (Split Plot Design) dengan 3 ulangan. Main plot adalah jenis mulsa yaitu: Tanpa mulsa (M-0), Mulsa plastik (M-1), dan Mulsa jerami (M-2) sedangkan sub-plot adalah: 1) Teknologi petani (B-1), 2) B-1+ NPK rekomendasi (B-2), 3) B-1 + 5 t ha-1 Dolomit (B-3), 4) B-1 + 5.0 5 t ha-1 Biochar (B-4), 5) B-1 + 5 5 t ha-1 Dolomit + 5.0 5 t ha-1Biochar (B-5). Hasil penelitian menunjukkan bahwa mulsa dan pembenah tanah memperbaiki sifat fisika tanah (retensi air, porositas dan agregasi tanah). Selain itu memperbaiki sifat kimia tanah (pH, Ca2+, K+, Ca-dd, K-dd, KB). Ada interaksi antara musa dan pembenah tanah terhadap hasil umbi bawang merah. Hasil umbi 18.35 t ha-1 didapatkan pada perlakuan mulsa plastik dengan teknologi petani dtambah 5 t ha-1 dolomit yang meningkatkan hasil sampai 57.8% dibandingkan kontrol, tanpa mulsa dengan teknologi petani. Kata kunci : hasil umbi, sayuran tropis, sifat fisika tanah, sifat kimia tanah