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All Journal Agrosains: Jurnal Penelitian Agronomi
Edi Purwanto
Department of Agrotechnology, Faculty of Agriculture, Universitas Sebelas Maret
Agriculture, Biological Sciences & Forestry

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Analisis Pertumbuhan Beberapa Varietas Kedelai pada Perbedaan Intensitas Cekaman Kekeringan Ratih Suryaningrum; Edi Purwanto; Sumiyati Sumiyati
Agrosains : Jurnal Penelitian Agronomi Vol 18, No 2 (2016): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (323.694 KB) | DOI: 10.20961/agsjpa.v18i2.18686

Abstract

Soybean demand in the market today has not been matched by domestic production. Many of the problems that cause insufficient  production of soy,  one of which is  the drought  affecting soybean growth and  yield. Efforts should be made to overcome the drought is to provide soybean varieties tolerant to drought stress. This study aims  to  assess  the  effect  of  the  difference  in  intensity  of  drought  stress  on the growth of some soybean varieties. This study uses a completely randomized design (CRD) factorial with two factors, the first factor and the second factor soybean varieties  drought  stress  levels.  Results showed significant  of lowering the value of RGR and NAR. The higher the level of drought stress will decrease soybean growth. Tolerance limits for each variety is at 80% moisture content.
Efektivitas Bioremedian dan Konsorsia Mikroba Penyubur terhadap Produksi dan Kandungan Timbal Gabah di Karanganyar Muslikhatun Mutmainnah; Edi Purwanto; Bambang Sukmadi; Supriyadi Supriyadi
Agrosains : Jurnal Penelitian Agronomi Vol 16, No 2 (2014): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (344.969 KB) | DOI: 10.20961/agsjpa.v16i2.18916

Abstract

Food need in Indonesia always increases while its production tends to decrease. One of factors causing it is contaminants in agricultural environment including lead (Pb). This research aimed to study the effectiveness of bioremediation and microbial consortia fertilizers in increasing rice production and decreasing lead contamination in grain. The research started in August 2013 to February 2014 in village Waru and Kebak, Kebakkramat, Karanganyar, using Nested Factorial Treatment Design and Complete Randomized Block Design with two factors those are bioremediation variety and combination microbial fertilizers with chemical fertilizers. Statistical analysis used F-test, Kruskal Wallis,Tukey 5%, Mood Median, correlation test and regression. Research result showed best production was achieved at V2P1 (Pepe + Azolla 0,183 ton ha-1, microbial fertilizer 0,56 ton ha-1 and chemical fertilizers 50% of farmer standard), that is highest result is achieved at total number of tillers (35,64), number of productive tillers (25,72), Dry Grain (11 ton ha-1) and Dry Milled Grain (8,7 ton ha-1). Azolla microphylla, microbial fertilizer and chemical fertilizers 50% of farmer standard treat was effective to reduce heavy metal residues because lead residues were not found on the grain (0 ppm).
Co-Authors Bambang Sukmadi Muslikhatun Mutmainnah Ratih Suryaningrum Sumiyati Sumiyati Supriyadi Supriyadi