Jaka Suyana
Department of Agrotechnology, Faculty of Agriculture, Universitas Sebelas Maret

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Metode USLE untuk Memprediksi Erosi Tanah dan Nilai Toleransi Erosi Sebuah Sistem Agricultural di Desa Genengan Kecamatan Jumantono Karanganyar Komariah Komariah; Jaka Suyana
Agrosains : Jurnal Penelitian Agronomi Vol 17, No 2 (2015): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (324.025 KB) | DOI: 10.20961/agsjpa.v17i2.18668

Abstract

Erosion can potentially cause of land degradation. Prediction of erosion rate is needed on a certain plots of land so the sustainability of the farming system and appropriate conservation recommendations can be known. This research is intended to obtain information of erosivity value comparison in supporting erosion prediction acuracy USLE method to get erosion prediction value and erosion tolerated value (Etol). This information will be used to the determine the recommendations technology conservation on farming system of Genengan village, district Jumantono, Karanganyar Regency. A explorative descriptive research is using a land units map as the basic unit of analysis a survey in the field. The determination of sample unit is based on the land unit map from the overlay of land slope maps, land use maps, and soil maps on the land system Samin watershed. Results showed that the magnitude in Genengan Village on the land unit 1, land unit 2, land unit 5, land unit 6 and land unit 8 still under the tolerance value. Meanwhile land unit 3, land unit 4 and land unit 7 are exceeded the value this requires need for conservation. The suggested conservation is for the land unit 3 by planting 9 of vetiver between the main plant, where as on the land unit 4 and land unit 7 is recomended to apply 60% of straw mulch.
Pemberian Mulsa dan Penguat Teras Pada Tiga Jenis Tanaman Terhadap Limpasan Permukaan, Erosi, Pertumbuhan dan Hasil Tanaman Pada Tanah Andisol Jaka Suyana; Sumarno Sumarno; Supriyono Supriyono; Nanik Puji Lestariningsih
Agrosains : Jurnal Penelitian Agronomi Vol 19, No 1 (2017): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (275.666 KB) | DOI: 10.20961/agsjpa.v19i1.20924

Abstract

Erosion is the main factor causing  land degradation in area of planting vegetables dominated by Andisol soil. Andisol soil contains more fraction of dust so it is easily transported by runoff. This study aim to determine the influence of mulching corn stem with a terrace strengthen (Vetiveria zizanioides, Coix  lacryma-jobi  L., Panicum muticum, Annona squamosa) to surface runoff, erosion, growth and result of plant (red lentils, cabbage and white lentils) in Andisol soil. This study uses a randomized complete block design with four (4) treatment and repeated three (3) times as a group so that there are twelve (12) experimental unit. The grouping based on kinds of plant that are cabbage, red lentils and white lentils. The results showed that MS4 treatment (mulch corn stem twelve (12) ton/ha with panicum muticum+ Annona squamosa as terrace strengthen) produces smallest of surface run off, erosion and dry weight of weeds, increased growth and canopy and increased crop yields 40.27% of red lentils, 57.10% of cabbage and 14.54% of white lentils.
Mulching with Terrace Strengthen on Surface Runoff, Erosion, and Sediment Enrichment Ratio Trinugraheni Trinugraheni; Jaka Suyana; Sumarno Sumarno
Agrotechnology Research Journal Vol 1, No 1 (2017): Agrotechnology Research Journal
Publisher : Perkumpulan Agroteknologi/Agroekoteknologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (441.908 KB) | DOI: 10.20961/agrotechresj.v1i1.18868

Abstract

Land degradation causes increase erosion on agricultural land. Andisol soil contains more fractions sand making aggregate easily dispersed. Soil loss due to erosion can lead to nutrients loss needed by plants. Corn stem mulching to reduce erosion and runoff.Corn stem mulch can be combined with terrace strengthen to decrease surface runoff and erosion.The study used randomized block design with 4 treatments and repeated 3 times as a block so that there are 12 experimental unit. Category of group iscabbage, red lentils and white lentils. The results showed that corn stem mulch 12 ton-1ha with kalanjana + annona able to reduce 4,5% of surface runoff, erosion 15,5%.Corn stem mulch 4 ton-1ha with Vetiverazizanioides+Annona squamosa as terrace strengthen withSER (Sediment Enrichment Ratio) has a (C-organic = 0,94; N-total = 1,04; P-total = 2,21; P-available = 1,40; K-total of 0,87; K-available 0,73) and suppresses loss nutrients in the Andisol soil.