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Peranan Mulsa Dan Pembenah Tanah Pada Dinamika Dan Pengawetan Lengas Tanah Santosa, AZ. Purwono Budi; Notohadisuwarno, Supriyanto; Soekodarmodjo, Soeprapto
Jurnal Magrobis Vol 15, No 1 (2015): 2015
Publisher : Agriculture Faculty, University of Kutai Kartanegara, Indonesia

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A study of the soil moisture dynamics and conservation resulted from the mulch adding and soil amendment was carried out in the Laboratory of Soil Science of Agriculture Faculty of Gadjah Mada University. The experiment was conducted using a Factorial Completely Randomized Design consisting of mulch adding (Mo = without the mulch and M1 = with the mulch) and fourrates of soil amendment (Po = 0, P1 = 4, P2 = 8 and P3 = 12 Mg.ha-1). The experiment used Mediteran top soil ( Vertic Eutropepts ). Tensiometers were installed at the 15, 30 and 45 cm soil depths of all plots. Every treatment was repeated three times. The soil properties which were observed included particle size distributions, bulk density, particle density, soil moisture characteristic. Soil temperature, saturated and unsaturated hydraulic conductivity, organic matter, fulvic acid, C/N and HA/FA ratios. Tensoimeter readings were taken daily, diurnal variation in soil temperature at a depth of 15 cm and air temperature were monitored with thermometers. The result of this experiment, generally speaking, showed that the mulch adding decreases the upward flow of the soil moisture and reduces the evaporation rate and then decreases the loss of the soil moisture. The soil amendment from the green manure does not have a role to improve soil physical properties. However, it increases the ability to hold the soil moisture, so the loss of soil moisture resulted from percolation is decreased. In fact, the role of soil amendment to increase the soil moisture content is less than the mulch, and then there is no interaction between the two factors which are tested.Key Words : mulch, soil amendment, soil moisture dynamics, soil moisture conservation.

Lebar Bedengan untuk Genangan dalam Parit pada Tanaman Kedelai Didik Indradewa; Soemartono Sastrowinoto; Supriyanto Notohadisuwarno
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 30 No. 3 (2002): Buletin Agronomi
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

saturated soil culture the width of the beds were recommended between I m and 2 m, which require more labor to dig the furrows. An experiment was done to study the effect of the width of beds and to determine the optimal bed's width. The experiment was done on Regosol soil in Sleman Regency, Yogyakarta using Randomized Complete Blocked Design with three blocks. The treatments were flood irrigation as control and saturated soil culture with I, 2, 3 and 4 m . wide of beds. Observations were done on soil moisture, physiological processes, growth and yield of soybean. The result of the experiment showed that saturated soil culture stabilized the soil moisture around field capacity, increased physiological processes, growth of the plant and increased the seed yield 81 %from 1.17 t ha-1 up to 2.12 t ha-l. There was no significant different on the effect of width of the beds, therefore 3-4 m bed's width was recommended. Keywords: Saturated soil culture, Soybean, Bed's width.

Fase Pertumbuhan Tanaman yang Tanggap terhadap Genangan dalam Parit di Lapangan Didik Indradewa; Soemartono Sastrowinoto; Supriyanto Notohadisuwarno; Fx. Agus Priyono
Jurnal Ilmu Pertanian Vol 10, No 1 (2003): Juni
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.60070

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Fase Pertumbuhan Tanaman yang Tanggap terhadap Genangan dalam Parit di Lapangan Didik Indradewa; Soemartono Sastrowinoto; Supriyanto Notohadisuwarno; Fx. Agus Priyono
Jurnal Ilmu Pertanian Vol 10, No 1 (2003): Juni
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.60070

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Peranan Mulsa Dan Pembenah Tanah Pada Dinamika Dan Pengawetan Lengas Tanah AZ. Purwono Budi Santosa; Supriyanto Notohadisuwarno; Soeprapto Soekodarmodjo
Jurnal Magrobis Vol. 15 No. 1 (2015): 2015
Publisher : Agriculture Faculty, University of Kutai Kartanegara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

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