Judul: Kajian Penggunaan Pompa Irigasi untuk Pertanian di Desa Babakan Raden, Kecamatan Cariu, Kabupaten Bogor.
Abstrak: One of the main problems that occur in irrigation supply is the increasing water scarcity at certain times. Actually the water is still available in the basin, it's just necessary some efforts to supply the irrigation needs. Actually the water can be raised by using water pump. If agriculture only depends on surface water and rainfall, it will not be able to increase the productivity of land because the crop water requirement is not fulfilled in some periods. The purpose of this study are determining the irrigation water pricing and finding out profitable irrigated farming. Irrigation water requirement is calculated with CROPWAT 8.0 software by using climate and rainfall conditions as input parameters, and engineering economy is used to calculate irrigation water pricing. The result shows that existence of the pump for lifting up the water to agricultural land could help farmers in increasing cropping intensity and farmers income because the farmers could plant three times a year with cropping pattern rice-rice-secondary crops or rice-rice-vegetables. The most profitable cropping pattern is rice-rice-vegetable because vegetables income is the highest among secondary crops. For sustainable farming, irrigation water cost have to based on irrigation water pricing.
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Judul: Pengaruh Penggunaan Pompa Irigasi terhadap Produksi, Faktor Produksi dan Pengalokasian Tenaga Kerja dalam Usaha tani (Studi Kasus di Desa Cibambulu Kecamatan Pabuaran Kabupaten Subang Jawa Barat)
Abstrak: Pompa Irigasi adalah suatu jenis teknologi yang diterapkan di daerah lahan kering. Adanya air yang dapat diatur sepanjang tahun akan merubah pola tanam, yang berarti dapat meningkatkan intensitas tanam. Praktek lapangan ini dimaksdukan untuk melihat sejauh mana penggunaan teknologi pompanisasi akan berpengaruh pada hasil produksi dan penggunaan saranan produksi serta pengaruhnya terhadap pengalokasian tenaga kerja.
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Judul: Variasi Alel dari Gen 5-HTT (Penyandi Agresivitas) pada Macaca nemestrina
Abstrak: Macaca nemestrina is an aggressive primate. The aggresivity is influenced by many factors, one of them is by a gene. The 5-HTT gene encodes the serotonin transporter that affects the regulation of serotonergic system and its receptor by modulating the concentration of serotonin in extracellular fluid. Variation in promoter and intron region can change the transcriptional activity of the 5-HTT gene, mainly the activity of the transporter and serotonin uptake. The transporter change activity influenced aggressivity, emotion, motor function, and some cognitive traits in primates. This research aimed to determine alelles variant of 5-HTT gene (encoding aggresivity) in M. nemestrina. Samples used in this research consisted of 56 M. nemestrina. The gene was amplified by the Polymerase Chain Reaction (PCR) method. Amplification in promoter region revealed two alleles and three genotypes with the frequencies of L and S alleles were 88,18% and 11,82%, respectively. Amplification of the third intron region showed two alleles with the frequency of l and s alleles were 55,4% and 44,6%, respectively. None of the individual had s/s genotype in the third intron region. Short allele was dominant to long allele. The presence of at least one short allele decreased transcription activity. There was one individual with S/S genotype in promoter region that was possibly to be the alpha male in the group.
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