Pengaruh Jadwal Irigasi dan Dosis Pupuk Organik Terhadap Sifat Fisik Tanah dan Pertumbuhan Serai Wangi

Wijaya, Krissandi; Mustofa, Agus; Hardanto, Afik; Sumarni, Eni; Sudarmaji, Arief; Sulistyo, Susanto Budi; Kuncoro, Purwoko Hari; Siswantoro, Siswantoro; Margiwiyatno, Agus; Ropiudin, Ropiudin; Ritonga, Abdul Mukhlis; Novitasari, Dian

doi:10.21776/ub.jkptb.2021.009.03.08

Cited by 3 publications

(2 citation statements)

References 11 publications

(13 reference statements)

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“…The water content change for most plots observed were sensitively depended on rainfall and irrigation rate, which was due to the basic characteristics of loamy-sandy soil having high total macro-pore inside [45,46,54,55]. Specifically, the higher capability of CM over others in intercepting and distributing rainfall and irrigation water within soil profile as well as preventing upward water loss by evaporation verified its prospective applicability in crop cultivation to support better water management [7,34,47,52].…”

Section: Soil Water Content-ec-temperature Changes and Relationsmentioning

confidence: 76%

Soil-Water Dynamics Pattern in a Lettuce Cropping Field under Various Mulches Coverage

Wijaya¹,

Ueno²,

Sudarmaji³

et al. 2023

Advances in Biological Sciences Research

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Soil-water dynamics pattern in a lettuce cropping field under cotton mulch (CM), plastic mulch (PM), and zero mulch (C) coverage was characterized. Three lettuce plots of 300 cm x 100 cm large each were prepared. Soil-water content, electrical conductivity (EC) and temperature at 0-10 and 10-20 cm depth were monitored hourly. Soil-hydraulic conductivity (K us ) within each soil profile was characterized and modelled using van-Genuchten model. The soil with CM showed higher water content (0.29-0.33 cm 3 cm −3 ) than that with PM (0.29-0.31 cm 3 cm −3 ) and C (0.26 cm 3 cm −3 ). At 32.1 mm d −1 rainfall rate, the soil EC with CM (0.22-0.30 dS m −1 ) was higher than others (< 0.02 dS m −1 ). The soil temperature with CM was 2-3 and 4-5 °C lower than that with PM and C, respectively. Furthermore, the CM plot had higher K us (3.1-4.4 cm d −1 ) compared to the PM (0.18-0.21 cm d −1 ) and C plot (0.36 cm d −1 ). The results reflect a unique characteristic of the cotton mulch, which is able to provide sufficient water and nutrient availability, and to control weeds and temperature in soil profile, for effective growth as well as sustainable production of the crop.

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Section: Soil Water Content-ec-temperature Changes and Relationsmentioning

confidence: 76%

Soil-Water Dynamics Pattern in a Lettuce Cropping Field under Various Mulches Coverage

Wijaya¹,

Ueno²,

Sudarmaji³

et al. 2023

Advances in Biological Sciences Research

Self Cite

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“…Hal yang sama terjadi pada kandungan total-N dan total-P di dalam tanah, dimana guludan horizontal dengan lebar 40 cm menjadi dimensi yang paling sesuai untuk budidaya kentang. Se-lanjutnya, menurut (Wijaya et al, 2019c(Wijaya et al, , 2020b penerapan saluran drainase dengan beberapa interval ter-tentu, antara lain interval 0 m/tanpa saluran, interval 1 m, interval 1.5 m, dan interval 2 m, pada guludan horizontal berpengaruh terhadap kadar air, kerapatan isi, dan permeabilitas tanah, serta terhadap kadungan total-N dan total-P di dalam tanah, dimana saluran drainase dengan interval 2 m merupakan saluran drainase yang potensial untuk diterapkan pada budidaya kentang.…”

Section: Pendahuluanunclassified

Analisis Ekonomi Budidaya Kentang pada Sistem Guludan Horizontal dengan Interval Saluran Drainase Tertentu dan Variasi Pemupukan

Wijaya,

Handayani Hidayat,

Novitasari

et al. 2023

nationalnal. multidisciplinary. sciences.

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Budidaya kentang konvensional dengan sistem guludan vertikal (searah lereng), disertai penggunaan pupuk/pestisida kimia yang intensif berdampak terhadap degrasi lahan (erosi tanah) dan lingkungan sekitarnya (sedimentasi dan pecemaran daerah aliran sungai/DAS) secara signifikan. Disisi lain, penerapan sistem guludan horizontal (searah kontur) terbukti sangat efektif mengurangi erosi tanah dan menahan penurunan produktivitas kentang yang drastis, terutama jika dikombinasikan dengan saluran drainase. Namun, tingkat kelayakan budidaya tersebut berbasis analisis ekonomi yang komprehensif masih belum banyak terdokumentasikan. Penelitian ini bertujuan untuk menganalisis tingkat kalayakan secara ekonomi untuk budidaya kentang pada sistem guludan horizontal dengan interval saluran drainse tertentu dan variasi jenis-dosis pemupukan. Total 4 demplot penelitian (@8 guludan horizontal, @40 cm lebar, @2 m interval saluran drainase secara zigzag, @10 tanaman=80 tanaman) disiapkan di lahan yang berlokasi di Desa Serang, Purbalingga dan dirancang secara RAL untuk perlakuan 4 jenis-dosis pupuk yang berbeda, yaitu: (1) pupuk kandang+pupuk bersubsidi urea-ponska, 125kg/ha (D1), (2) pupuk kandang+pupuk non-subsidi NSL-nitrea, 41,67kg/ha (D2), (3) pupuk kandang+pupuk non-subsidi NSL-nitrea, 83,33kg/ha (D3), dan (4) pupuk kandang+pupuk non-subsidi NSL-nitrea, 125kg/ha (D4). Berbagai biaya faktor produksi (biaya tetap: lahan/tanah; biaya variable: berbagai bahan dan alat/perangkat), harga jual produk, biaya/harga terkait lainnya didata dan dikumpulkan per demplot selama satu musim budidaya kentang. Analisis data meliputi analisis TFC, TVC, NP, BEP, ROI, B/C Ratio, dan I. Hasil penelitian menujukkan bahwa D2 adalah perlakuan yang memiliki tingkat kelayakan yang paling baik secara ekonomi, dimana dengan TFC=Rp.150.000,00 dan TVC=Rp.30.233.020,00, tercapai nilai NP=Rp.2.925.522,00, BEP=191,43kg; Rp.7.741/kg, ROI=0,10, B/C Ratio=1,10, dan I=Rp.1.822.981,00/tahun.

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Effect of macroeconomic indicators on stock price indices with the vector error correction model approach

Safitri,

Rahayu,

Jayadi

et al. 2023

CBSR

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The capital market as one of the important instruments in the economy requires indicators to determine growth in it. The Composite Stock Price Index (IHSG) is used as one of the capital market indicators with various influencing factors. This research was conducted to test and analyze the effect of inflation, exchange rate, the Bank Indonesia (BI) rate, and money supply (M2) on the Jakarta Composite Index (JCI) in the period from January 2017 to March 2022. In this study, quantitative descriptive research was carried out with JCI as the dependent variable and inflation, exchange rate, BI-rate, and money supply as independent variables. The research used the vector autoregression (VAR) method using the EViews 12 analysis tool. From the tests conducted it showed that between variables only had a one-way relationship, with the R squared value indicating that the independent variables in the model were able to explain changes in the dependent variable that occurred. The variables in the model are also indicated to have a simultaneous effect on the dependent variable; this is based on a high F-statistic value.

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Pengaruh Jadwal Irigasi dan Dosis Pupuk Organik Terhadap Sifat Fisik Tanah dan Pertumbuhan Serai Wangi

Cited by 3 publications

References 11 publications

Soil-Water Dynamics Pattern in a Lettuce Cropping Field under Various Mulches Coverage

Soil-Water Dynamics Pattern in a Lettuce Cropping Field under Various Mulches Coverage

Analisis Ekonomi Budidaya Kentang pada Sistem Guludan Horizontal dengan Interval Saluran Drainase Tertentu dan Variasi Pemupukan

Effect of macroeconomic indicators on stock price indices with the vector error correction model approach

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