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All Journal Buletin Tanaman Tembakau, Serat & Minyak Industri BERITA BIOLOGI Buletin Tanaman Tembakau, Serat & Minyak Industri
Sri Mulyaningsih
Balai Penelitian Tanaman Pemanis dan Serat
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Journal : BERITA BIOLOGI

 1 
PENGARUH TUMPANGSARI TERHADAP PERTUMBUHAN DAN HASIL PANEN JARAK PAGAR (Jatropha curcas L.) HASIL REHABILITASI Sri Mulyaningsih; Budi Hariyono
BERITA BIOLOGI Vol 11, No 3 (2012)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v11i3.500

Abstract

A research to study the effect of intercropping on rehabilitated of physic nut (Jatropha curcas L.) was conducted in Muktiharjo Research Station, Pati, Central of Java, from January to December 2010. Plant materials were physic nut rehabilitated by grafting of main branch with IP-2A (1 year old) and intercrops (peanut, soybean, mungbean and sesame). The experiment arranged in randomized block design with 6 replications. The treatments were: 1) intercropping peanut + physic nut, 2) intercropping soybean + physic nut, 3) intercropping mungbean + physic nut, 4) intercropping sesame + physic nut, and 5) physic nut monoculture. Plot size was 8 m x 8 m, plant distance of physic nut 2 m x 2 m, and plant distance for peanut, soybean and mungbean were 25 cm x 25 cm and sesame was 50 cm x 25 cm. The result showed that jatropha seed yield on intercropping physic nut with soybean (980.05 kg/ha) and mungbean (974.22 kg/ha) were not significantly different from physic nut monoculture (1,094.84 kg/ha). Crop that appropriate for intercropped with rehabilitated physic nut (second year) were soybean and mungbean.
PERTUMBUHAN DAN PRODUKSI JARAK PAGAR (Jatropha curcas L.; Euphorbiaceae) PADA TIGA TINGKAT POPULASI TANAMAN DI LAHAN KERING BERPASIR Sri Mulyaningsih; Djumali Djumali
BERITA BIOLOGI Vol 14, No 3 (2015)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v14i3.1830

Abstract

Seed production of Jatropha grown on dry land is very low. Productivity could be increased by increasing plant population size. This study aimed to obtain a plant population that was capable of supporting optimum growth and seed production on sandy upland. This research was conducted at the Asembagus Experimental Station, Situbondo, East Java from January to December 2012. The planting material used were seeds and cuttings. Three populations levels: (1) 2,500 plants ha-1 (2 m x 2 m), (2) 5,000 plants ha-1 (2 m x 1 m), and (3) 10,000 plants ha-1 (1 m x 1 m ) were arranged in a randomized block design with 5 replications. Destructive observations were made in each month to measure the dry weight of plants, shoot, root, leaf, and leaf area index.The production component were observed at harvesting time by measuring dry weight of fruit, fruit skin, seeds, 1000 fruits, and 1000 seeds. Data were analyzed by analysis of variance and LSD test of 5%. Results showed that the use of 10,000 plants ha-1 could increased dry weight of plants, shoots and roots by134.0-544.6%,125.9-549.4% and 167.8-693.3% respectively. They could also increased seed production by 77.5-178.2%.
PENGARUH SUMBER PUPUK ORGANIK TERHADAP PENAMPILAN TEBU (Saccharum officinarum L.) PADA TATA TANAM BARIS GANDA BENIH GANDA Djumali Busro; Sri Mulyaningsih; Teger Basuki
BERITA BIOLOGI Vol 17, No 1 (2018)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v17i1.2828

Abstract

Increased productivity of sugarcane in upland area can be done through the implementation of the integration of manure with a high dose of inorganic fertilizer in the double rows and twice plant populations of single row (“double rows double seeds”) planting arrangement. Limited availability of manure and inorganic fertilizer entails the replacement of manure with green manure fertilizer. The research was aimed to obtain a green manure as replacement manure that can be intercropped in the double rows double seeds planting arrangement. The experiment was done in the Asembagus Experimental Station, Situbondo, East Java on January to December 2014 for plant cane (PC) and from January to December 2015 for ratoon cane (RC). Treatments were arranged in a Randomized Block Design time for replication. The treatment includes (1) the four rows of Crotalaria juncea, (2) two rows of Crotalaria juncea, (3) four rows of peanuts in width between rows of sugar cane, (4) manure, and (5) no organic fertilizer. The results showed that the integration of organic fertilizer with a low dose of inorganic fertilizers increases productivity and sugar yield 5.20 to 41.78% and 33.33 to 69.90%, respectively in PC and 7.33 to 32.67% and 5.74 to 29.61%, respectively in RC from no organic fertilizer. Four rows of Crotalaria juncea could replace the role of manure in improving the productivity and sugar yield for PC and two rows of Crotalaria juncea for RC.
Co-Authors . Djumali Budi Hariyono Budi Hariyono Djumali Busro Djumali Djumali Teger Basuki