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Bambang Gonggo Murcitro
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Faculty of Agriculture, University of Bengkulu, WR Supratman St. Kandang Limun, Bengkulu 38371
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INDONESIA
Jurnal Ilmu-Ilmu Pertanian Indonesia
Published by Universitas Bengkulu
ISSN : 14110067     EISSN : 26849593     DOI : https://doi.org/10.31186/jipi
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Ilmu-Ilmu Pertanian Indonesia (JIPI) is a scientific journal that publishes research results related to resource issues and agricultural productivity widely, including Agroecotechnology, Plant Breeding, Soil Science, Plant Protection, and Agricultural Ecology.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 5 Documents
 1 
Search results for , issue "Vol 20, No 2 (2018)" : 5 Documents clear
PERUBAHAN SIFAT KIMIA TANAH DAN HASIL JAGUNG PADA INSEPTISOL DENGAN PEMBERIAN KOMPOS Halasan Halasan; Anandyawati Anandyawati; Hasanudin Hasanudin; Riwandi Riwandi
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 20, No 2 (2018)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.20.2.33-39

Abstract

[CHANGE IN SOIL CHEMICAL CHARACTERISTICS AND YIELD OF MAIZE IN AN INCEPTISOL AS AMENDED WITH COMPOST]. Vast area of inceptisol in Indonesia is a potential natural resource for improving the domestic maize production. The amendment of organic material is expected to make correction on the fertility problem inherent in the soil. Objective of this study was to determine the optimum dose of compost for some soil chemical properties and maize performances. The doses of compost consisted of 0, 2.5, 5, 7.5, 10, and 12.5 ton/haa were allotted randomly on the experimental plots according to completely randomized design with three replications. Observations were made on  the exchangeable Aluminum (Al-dd), pH, organic carbon, water content, plant height, unhusked and husked ear weight, and grain yield. Analysis of variance showed that the dose of compost had significant (P?0.05) effects on pH and C-organic in soil. Giving compost at a dose about 12.5 ton/ha could increase the pH about 4.9, whereas giving compost at a dose about 10 tonha-1 could increase C-organic about 3.09 %. In other hand, the giving of compost with various dose did not give significantly (P>0.05) affect towards  Aluminium (Al-dd), pH, C-organic, water content, height of plants, weight of without husk, weight of cob with husk, weight of dry corn beans. The highest grain yield (2,415.75 kg/ha) was observed on compost applied at  dose  12.5 ton/ha.
INSIDENSI PENGGEREK BATANG PADI KUNING (Schirpophaga incertulas Walker) PADA TIGA VARIETAS PADI : KASUS DI DESA KEMUMU BENGKULU UTARA Irma Cahyoko; Dwinardi Apriyanto; Kanang S. Hindarto
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 20, No 2 (2018)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.20.2.40-45

Abstract

[INCIDENCE OF THE RICE YELLOW STEM BORER (Schirpophaga incertulas Walker) ON THREE RICE VARIETIES IN KEMUMU, NORTH BENGKULU]. Rice yellow stem borer (RYSB), Schirpophaga incertulas Walker, often causes yield loss in irrigated rice field. Dead heard and white ear head are the common symptomps resulted from the larval damage. The use of resistant varieties may reduce the risk of yield loss, but the resistance may lose quickly as the varieties are continually grown in a large area. The assessment of the insect incidence in rice field is necessary in order to determine the status of the pest for certain period of time. The objective of the study was to determine the incidence and damage incurred by RYSB in three rice varieties, Mekongga, Cibogo, and Situ Bagendit at farmer rice fields. A survey was conducted in December 2017-February 2018 in Kemumu, North Bengkulu Regency. Observation of RYSB was made on randomly selected 30 hills from + 1 ha area for each variety that was located adjacent to each other. Grain yield was measured from the sampled hills and from 3 plots of 9 m2 . Weight of 1000 grain was measured from grain of three sampled hills. The results revealed that the incidence of RYSB was low, as indicated by the presence of egg mass and larvae of RYSB, and no significant difference was found among the three varieties. Nevertheless, the average cumulative number and percentage of dead heart and white ear head was significantly lower in Mekongga than those of Cibogo and Situ Bagendit. In term of grain yield, however, Mekongga outperformed the other two varieties. The low incidence of RYSB might suggest that growing different variety practiced by local farmers was able to suppress pest population, and therefore it should be implemented in all main areas of rice production.
PERTUMBUHAN DAN HASIL SELADA (Lactuca sativa L.) DENGAN PEMBERIAN PUPUK KANDANG DAN ABU SEKAM PADI DI INCEPTISOL. Evelyn Evelyn; Kanang S. Hindarto; Entang Inoriah
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 20, No 2 (2018)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.20.2.46-50

Abstract

[GROWTH AND LETTUCE YIELD (Lactuca sativa L.) BY GIVING MANURE AND RICE HUSK ASH IN INCEPTISOL].  Increasing market demand for lettuce (Lactuca sativa L.) makes the prospect of developing lettuce very promising. Bengkulu Province is dominated by inceptisol soil types which have low soil fertility, making it less optimal for lettuce growth. Giving organic matter can increase soil fertility through improving soil physical, chemical and biological properties so that it can support the growth of lettuce. This study aims to determine the dosage of manure, the dose of rice husk ash and the optimal dose interaction for lettuce growth and yield. This research was conducted from May 2018 to July 2018 in Medan Baru, Muara Bangkahulu Subdistrict, Bengkulu City. The research design used was a Completely Randomized Design (CRD) consisting of two factors and repeated 3 times. The first factor is the dosage of cow manure with three levels, namely: 0 tons/ha, 15 tons/ha, and 30 tons/ha. The second factor is the dose of rice husk ash which consists of three levels, namely 0 tons/ha, 3 tons/ha, and 6 tons/ha. Data from the observations were analyzed statistically by Analysis of Variance (ANOVA) using the F test at the level of 5%. To determine the dosage of manure, the dose of rice husk ash and the optimal combination of doses for growth and yield of lettuce used the Polynomial Orthogonal method. The results showed that there was no interaction between cow manure and rice husk ash on the growth and yield of lettuce. The effect of cow manure has not shown the optimum dose for growth and yield of lettuce. The addition of manure doses up to 30 tons/ha was able to increase the value of plant height, number of leaves, leaf area, and fresh weighted plant weight of 0.189, 0.038, 0.931 and 0.104 respectively. Giving rice husk ash up to a dose of 6 tons/ha did not have a significant effect on all observed variables. 
PENGARUH SUBTITUSI PUPUK N SINTETIK DENGAN LIMBAH LUMPUR SAWIT TERHADAP PERTUMBUHAN DAN HASIL JAGUNG MANIS Johannes Simbolon; Bilman Wilman Simanihuruk; Bambang Gonggo Murcitro; Herry Gusmara; Eko Suprijono
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 20, No 2 (2018)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.20.2.51-59

Abstract

[EFFECTS OF PALM OIL SLUDGE SUBTITUTION FOR SYNTHETIC N FERTILIZER ON GROWTH AND YIELD OF SWEET CORN]. Palm oil sludge (POS) contains high concentrations of organic nitrogen dan its can serve as an alternative for synthetic nitrogen fertilizer. Objective of this study was to compare the growth and yield of sweet corn as amended with different compositions of synthetic N fertilizer and palm oil sludge. Six compositions, each containing 138 kg N/ha were assigned as the treatment and arranged in a randomized complete block design with three replications. These were 100% synthetic fertilizer, 80% synthetic fertilizer + 20% POS, 60% synthetic fertilizer + 40% POS, 40% synthetic fertilizer + 60% POS, 20% synthetic fertilizer + 80% POS, and 100% POS. The results of this study indicated that the plot amended with 60% synthetic fertilizer + 40% POS produced the highest plant stature (176.4 cm), stem diameter (2.40 cm), leaf area (8712.82 cm2 ), plant fresh weight (375.19 g), plant dry weight (136.68 g), and husked ear length (17.93 cm). However, the highest observed husked ear yield was only about 61.6 % the yield potential of the sweet corn variety.
PENAMPILAN SEPULUH VARIETAS KEDELAI YANG DITUMPANGSARIKAN DENGAN TEBU Iskandar Umarie; M. Hazmi; Oktarina Oktarina
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 20, No 2 (2018)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.20.2.60-65

Abstract

[PERFORMANCES OF TEN SOYBEAN VARIETIES AS INTERCROPPED WITH SUGARCANE]. An intercropping system between soybean and sugarcane may be an alternative to increase soybean production in Indonesia, but not all soybean varieties are suitable for intercropping system as different soybean varieties may perform differently under intercropping system and monoculture system. Therefore, suitable soybean varieties for intercropping should be identified to warrant the higher crop productivity. This study was conducted to to compare the growth and yield performances of ten soybean varieties in monoculture and soybean-sugarcane intercropping systems. The experiment was laid in a Split Plot Design with three replications. The cropping systems (monoculture and intercrop) were allotted in the main plots, while the soybean varieties (Gepak Kuning, Kaba, Wilis, Tanggamus, Burarang, Sinabung, Anjasmoro, Agromulyo, Ring-1, and Gema) were assigned as the sub plots and allotted randomly in each main plot. On overall, the intercropping system had significantly reduced the soybean pod number, seed number, wight of 100 seed, and, seed yield/plant, but increased plant height as compared to the monoculture system. The exceptions were observed for seed number and weight of 100 seed. The reduction of seed number was not significant on Agromulyo and Dering-1.On the other hand, Anjasmoro and Dering-1were the only varieties showed significant reduction in weight of 100 seed. Kaba, Willis, Tanggamus, Burarang, Sinabung, and Dering-1 showed their consistant performormances across the cropping systems. However, the higher seed yield/plant in both systems was observed on Gepak Kuning, Willis, Burarang, Agromulyo, Dering-1, and Gema.

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