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Universitas Pembangunan Nasional "Veteran" Jawa Timur
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UJI SIRIH MERAH (Piper crocatum Ruiz and Pav. ) PADA BERBAGAI INTENSITAS SINAR MATAHARI DAN MEDIA TANAM -, Sumarwoto; -, Susilowati; Adhityanti, Yanning
MAPETA Vol 11, No 1 (2008): MAPETA
Publisher : MAPETA

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The aim of this research was to determine the test of Sirih Merah on sunlight intensity and planting medium. The experiment was conducted in paranet house at the Faculty of Agriculture UPN "Veteran" Yogyakarta (± 105 m above sea level), from September to December 2006. The experimental was designed using Split Plot Design with two treatments factors and three replications. The mainplot is various of sunlight intensities: I1= intensity 25%, I2= intensity 50%, I3 = intensity 75%, I4 = intensity 100%. The sub-plot was planting medium ( M): M1 = 1: 1:1 (Chaff charcoal : Sand : Compost), M2 = 1: 1: 1 ( Sphagnum moss : Sand : Compost), and M3 (Bamboo Mulch : Sand : Compost).The results showed that there was an interaction between type of medium and sunlight intensity that resulted in significantly longer of leaf bud, number of leaves, and wide of leaf. Treatment with light intensity I1 ( 25%) resulted in the longest leaf, the best quality of leaf (leaf colour, chlorophyll and of tannin content), the highest fresh plant weight, and the biggest root volume better than other higher light intensities. The growth and the quality of Sirih Merah was not affected by planting medium, however chaff charcoal might be a better option to use, because it is cheaper and easier to obtain.Keywords : Sirih Merah (Piper crocatum Ruiz and Pav.), light intensity, planting medium
UJI VARlETAS UBI JALAR (Ipomoea hatatas L.) PADA BERBAGAI JENIS PUPUK ORGANIK ALAMI DAN PUPUK BUATAN (N, P DAN K) -, Sumarwoto; Wirawati, Tutut; Frisanto, Rifan
MAPETA Vol 10, No 3 (2008): MAPETA
Publisher : MAPETA

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The goal of this research is to get information about variety of sweet potato which have the highest production level and kind of fertilizer which give higher production level than 3 other examined varieties. The research was conducted in rainy season year 2005/2006 in Nayan village, Maguwoharjo, Depok, Sleman, DIY, using 3 kinds of  sweet potatoes: Boko, Sari, and Kalasan and using 4 kinds of fertilizer: organic matter formed from chicken feces, compost, and green fertilizer, also using manufacturer fertilizer mixed from N (Urea), P (SP36), and K(KCl). The experiment used Experimental Block Design (EED) Faktorial with 3 replications, The observation was conducted to several parameters: the amount of branch, lenght of main branch, weight of crop, amount of tuber, weight of tuber, diameter and average lenght of saleable tuber, amount of  tuber produced per ha, and sugar content in the tuber. The result of this research was the variety of Boko gave better growth in the amount of branch (19.50) and the lenght of' main bronch (178.63 cm), also gave the highest tuber produced ha-1 (13.12 ton). Organic fertilizer (chicken feces) gave the best result with 10 ton ha-1 doses, for the entire important parameters crop growth and the yield product observed, whereas on the supporting parameters, they generally gave of the same.
Co-Authors -, Susilowati Adhityanti, Yanning Frisanto, Rifan Wirawati, Tutut