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Pengaruh Aplikasi Pupuk Kandang dan Sistim Tanam Terhadap Hasil Varietas Unggul Padi Gogo Pada Lahan Kering Masam di Lampung Barus, Junita
Jurnal Lahan Suboptimal Vol 1, No 1 (2012)
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Abstract

Barus, Y. 2012. The Effect of Manure Application and Planting System on the Production of Upland Rice Varieties on Dried Acid Land in Lampung. J. Lahan Suboptimal 1(1):102-106.Upland rice planted in the dry land is very potential to contribute to the national rice production since upland area is quite large and its cultivation does not require irrigation.. The research was aimed to observe the effect of planting system and the application of organic matter on the production of upland rice. The experiment was carried out in the Buyut Udik village, the Gunung Sugih Subdistrict, the Middle Lampung Regency during the first season 2008/2009. Using Split Plot Design which consisted of two factors, namely: A. Planting System (The tegel system (20 x 20 cm), The planting system legowo 2: 1, and The planting system legowo 4: 1); B. Cow manure(without manure, and with manure 4 t/ha). Inorganic fertilizers applied were Ponska 15:15:15 (200 kg/ha) and urea (200 kg/ha). The highest production of 4,52 t/ha was obtained from the treatment legowo 2:1 with manure 4 ton/ha, followed by the tiles system with manure (4,24 t/ha), and the lowest was obtained from the treatment legowo 4:1 without manure (3,55 t/ha).
Pemanfaatan Lahan di bawah Tegakan Kelapa di Lampung Barus, Junita
Jurnal Lahan Suboptimal Vol 2, No 1 (2013)
Publisher : Jurnal Lahan Suboptimal

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Abstract

Lampung is one of the central areas of coconut plantations in Indonesia, covering an area of about 126,129 ha.  Approximately 80% of land under coconut can be used for other crops and livestock. Types of plants that can be cultivated in between coconut plants (intercrops) include perennial crops such as cocoa and banana, annual crops such as corn, soybeans and upland rice, depending on the local climate and soil conditions. Constraints in land use under the coconut tree were solar radiation and soil fertility (low fertility soil as a growing medium). Dry land in Lampung is generally acidic soil with a pH below 5 in which the availability of nutrients, especially P is low. Efforts should be made to improve the fertility of the land, including the application of inoculum solvent phosphate on acid soils, the use of organic fertilizers and bio-fertilizers with the right dose according to the condition of the land. Observations were conducted at several villages which the centers of coconut plantations in the South Lampung regency.  In these villages, only about 30% of the total area under coconut trees was used for intercrops. Types of plants for intercrops were maize, bananas, and upland rice.
Kajian Pola Tanam dan Pola Pemupukan Padi Rawa di Lampung Barus, Junita; Hafif, Bariot
Jurnal Lahan Suboptimal Vol 3, No 2 (2014)
Publisher : Jurnal Lahan Suboptimal

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Abstract

Swamp land in Lampung area of 544,305 ha, which spread out in several districts, where a potential for planting rice paddy field area of 410,177 ha. The pattern cultivation especially fertilization also different from each other in each type of land swamp and a specific location, so have an effect on yield. This study had done by the method survey and interviews farmers by using a questioner. Location interview was in three districts that have land swamp area in Lampung, namely Tulang Bawang District (Sub District: Rawa Jitu Selatan, Rawa Pitu, and Penawar Aji); Mesuji District (Sub District: Mesuji Timur and Mesuji); and Lampung Selatan District (Sub District: Rawa Sragi). The number of respondents 15 farmers per sub-district, so the total respondents were 90 farmers. The data were obtained then tabulated and analyzed descriptively. Most of the farmers used these wetlands for rice farming, but only 50% can be used for double cropping of rice per year. The dose of fertilizer farmers applied both urea and NPK Ponska / SP-36 lower than recommended dosage according to Permentan Regulation No. 40 of 2007 (Urea 175 kg + 200 kg Ponska NPK + 25 kg SP-36 + 50 kg KCl). Average rice yield was obtained according to the results of interviews 4.34 t/ha in MT I and 2.5 t/ha in MT II.
Improvement of several indicators of physical and biological properties of soil after adding crops biomass residues and yield of upland rice Barus, Junita; Lumbanraja, Jamalam; Sudarsono, Hamim; Dermiyati, D
Journal of Degraded and Mining Lands Management Vol 6, No 2 (2019)
Publisher : Brawijaya University

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Abstract

Returning and addition of organic material to soil is a key to protecting the soil, plants, and the environment. A study aimed to elucidate the effect of residual biomass application on some indicators of soil physical properties, abundance of earthworms and soil microbial activities was conducted in Kebun Percobaan (KP) Natar, BPTP Lampung from February to July 2017. The treatments were three types of crops biomass residues, i.e., maize stover, rice straw, and soybean stover (fresh or compost). The dosage rates were 0, 2.5, 5.0, 7.5, and 10 t/ha. The treatments were arranged in a randomized block design with three replicates. Upland rice (Inpago 9 variety) was planted after two weeks application of biomass residues treatments. The results showed that application of crops biomass residues improved bulkdensity and significantly increased soil water content at the high dose of biomass residues (7.5 or 10 t/ha). The amount and weight of earthworms with added of compost biomass was significantly correlated with soil water content (r values 0.491 and 0.376, respectively). The dose of biomass residues had a significant effect on soil respiration that the highest soil respiration was obtained in maize compost biomass treatment (at 12 weeks observation) was 31.7 and rice straw compost (at 8 weeks observation) which was 30.19 mg/hour/m2 C-CO2.
Pengaruh Pemupukan NPK Terhadap Pertumbuhan Bibit Lada Perdu Barus, Junita
Buletin Penelitian Tanaman Rempah dan Obat Vol 8, No 2 (1993): Buletin Penelitian Tanaman Rempah dan Obat
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

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Percobaan pengaruh pupuk N, P dan K terhadap pertumbuhan bibit lada perdu dilakukan di rumah atap Sub Balittro Natar dari bulan Mei sampai September 1993. Bahan tanaman yang digunakan adalah bibit lada perdu berumur + 2 bulan dari varietas Belantung. Perlakuan-perlakuan yang diuji adalah; 1) tanpa pupuk (N0) 2) 0.225 g N/tanaman (N1), 3) 0.450 g/tanaman (N2), 4) 0.900 g/tanaman (N3), 5) 0.225 g N + 0.230 g P2O/tanaman (N3+P), 6) 0.450 g N + 0.230 g P2O/tanaman (N3+P) 7) 0.900 g N + 0.230 g P2O5/tanaman (N3+P), 8) 0.225 g N + 0.300 g K2O/tanaman (N1+K), 9) 0.450 g N + 0.300 g K2O/tanaman (N2+K), 10) 0.900 g N+0.300 g K2O/tanaman (N3+K), 11) 0.225 g N+0.230 g P2O3 + 0.399 g K2O/tanaman (N1+P+K) 12) 0.450 g N + 0.230 g P2O3 + 0.300 g K2O/tanaman (N3+P+K), 13) 0.900 g N + 0.230 g P2O5 + 0.300 g K2O/tanaman (N3+P+K). rancangan yang digunakan adalah Acak Lengkap dengan 2 ulangan dan 8 tanaman untuk setiap perlakuan. Hasil percobaan menunjukkan bahwa penambahan pupuk P dan K disamping pupuk N dapat meningkatkan pertumbuhan vegetative tanaman lada. Kombinasi perlakuan pupuk yang memberikan pertumbuhan terbaik adalah 0.225 g N + 0.230 g P2O3 + 0.300 g K2O per tanaman.
Recommendation of Phosphate and Potassium Fertilizers for Maize at Five Locations in Lampung Barus, Junita; Murni, Andarias Makka
Journal of Tropical Soils Vol 15, No 2: May 2010
Publisher : UNIVERSITY OF LAMPUNG

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Abstract

Recommendation of Phosphate and Potassium Ferlilizers for Maize at Five Location in Lampung (J Barus and AM Murni):. Fertilizer recommendation in specific location will be related to fertilizers efficiency.  The study was conducted at five locations which were planted with corn minimal once a year, namely: (1) Sidowaras village,  Bumi Ratu Nuban Subdistrict, Lampung Tengah Regency; (2) Binjai Ngagung,  Bekri Subdistrict, Lampung Selatan Regency; (3) Watu Agung,  Kalirejo Subdistrict, Lampung Tengah Regency, (4) Balai Rejo, Kalirejo Subdistrict, Lampung Tengah Regency, and (5) Trimulyo, Tegineneng Subdistrict, Lampung Selatan Regency.  The soil samples were analyzed in the Research and Development Centre for Soil and Agroclimate Laboratory in Bogor.  The value of  P and K in soil were compared to the results of  correlation study using several extraction of P and K in Lampung.  Results of the study showed that the status of P was high for three location, medium for one location and low for one location.  K status was low for five locations. Phosphorus fertilizer  recommendation on the three locations with high level of P (Sidowaras, Binjai Ngagung, and Balai Rejo) was 75 kg ha-1 SP-36, on the middle P levels (Trimulyo) was 150 kg and on the low level of P (Watu Agung) was 300 kg. On the other hand, the recommendation for K fertilizer for all locations were 150 kg ha-1 KCl.