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Astutik Astutik

PS. Budidaya Pertanian, Fakultas Pertanian, Universitas Tribhuwana Tunggadewi

Author-ID : 3707210

Biochemistry, Genetics & Molecular Biology Chemistry Mathematics Physics

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PENGGUNAAN BEBERAPA MEDIA DAN PEMUPUKAN NITROGEN PADA PEMBIBITAN KELAPA SAWIT Astutik Astutik; Fauzia Hulopi; Ahmad Zubaidi
BUANA SAINS Vol 11, No 2 (2011)
Publisher : Universitas Tribhuwana Tunggadewi

The quality of palm oil is determined by the quality of land and seeds from the seedling. The Selection of seedling media is an important factor to support the development of the seedlings until the seedlings can be planted into the field. The study aims to determine the effect of several types of seedling media and nitrogen fertilization on the growth of palm oil seedlings. The study was conducted at field experiment of Tribhuwana Tunggadewi University with height of 523 m above sea level, for 4 months. The research used Randomized Block Design with three replication (RAK) of factorial with factor 1: seedling medium (M) consisted of: M1 = soil:sand (1:1), M2 = soil:manure (1:1) and M3 = soil:sand: manure (1:1:1). Factor 2 was the nitrogen fertilizer dosage comprising 4 levels of the nitrogen fertilizer: 0 g (U0), 5 g (U1), 10 g (U2) and 15 g (U3), so there were 12 combinations of each treatment was repeated 3 times. Observations were made at high parameters of seed, seed stem diameter, leaf number, leaf area, and total dry weight of seed. The results obtained that the using of media types interact with nitrogen fertilization in supporting the growth of seedlings (stem diameter). The best oil palm seed obtained in the medium of sand: soil:manure (M3) with 15 g of urea fertilizer per seed was able to produce the largest stem diameter (0.37 cm) up to age 2 months. Separately, 15 g urea nitrogen fertilization produces the best seeds (number of leaf, leaf large, and top dry weight), while the best seedling media was the mixed media of soil:sand:manure

PEMANFAATAN BAGAS SEBAGAI CAMPURAN MEDIA PERTUMBUHAN JAMUR TIRAM PUTIH Kristianus Sunarjon Dasa; Astutik Astutik; Amir Hamzah
BUANA SAINS Vol 11, No 2 (2011)
Publisher : Universitas Tribhuwana Tunggadewi

Growth and development of white oyster mushroom are influenced by the mushroom seeds, planting substrate, environmental conditions, and media materials. A common type of media used is sawdust mushroom growers. Bagasse is a waste of sugar production as the highest cause of pollution (35%) but contains organic matter, minerals, crude fiber, crude protein and essential nutrients needed for growing oyster mushrooms. It is therefore necessary to study with the aim to determine the effect of bagasse as the mixed media production and quality of white oyster mushrooms. The experiment was conducted at PT Endang Mushroom, Tlogomas village, Lowok waru district, Malang city started from November until April 2011. The research used Completely Randomized Design with bagasse single-dose factor i.e. without bagasse/control (P0), 10% of bagasse (P1), 20% of bagasse (P2), 30% of bagasse (P3), and 40% of bagasse (P4). The observations made on the variables: time of fruit body appears, stalk length, stalk diameter, diameter of the hood, the number and weight of the wet weight of fruit. The results concluded that the use of bagasse as the mixture of sawdust medium effected on the growth of white oyster mushrooms. The addition of 40% bagasse was capable of producing fruit bodies appear as the fastest (28 days), the largest stem diameter (2.24 cm), the largest cap diameter (8.95 cm), the highest number of fruit (37.80 fruits) and wet weight reached 444.20 grams, of fruit bodies and wet weights did not differ erent as much as 30 % of bagasse

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