This research aims to study effect application of biochar residue, liquid smoke and interaction of biochar residue and liquid smoke to the growth and yield of upland rice on Ultisol medium. The research was conducted at the Green House of the Faculty of Agriculture, Riau University on January to June 2018. The research in form factorial experiment was arranged a completely randomized design (CR…
This research aims to determine the genetic diversity of local rice accessions from Kampar based on morphological and molecular marker of trnL-trnF intergenic spacer. Observation of morphological characters was carried out in the experiment station (greenhouse) Faculty of Agriculture, University of Riau, whereas molecular analysis carried out in the laboratory of genetics, Department of biology…
The study aims to determine potential of soil degradation in oil palm plantations, evaluate the status of soil degradation in the company and small holder’s plantations in Pasir Penyu Subdistrict, and develop recommendations for improved management to control land degradation. The study was conducted in March-May 2019 in Pasir Penyu Subdistrict, Indragiri Hulu District, Riau Province. The res…
The aim of this research is to determine the exact dose of oil palm empty bunch (OPEB) compost and NPKMg fertilizer which produced the highest growth and yield of oil palm in Ultisol soil.The study suggestedeffect of composite oil palm empty bunches with cow manure (2:1(w/w)) and NPKMg (13:6:27:4) fertilizer that enriched with trace elements; boron, copper and zinc. The study used a completely …
The objective of this study was to create the relationship model of Land Characteristics with Production as Formulation Land Suitability Criteria for palm oil (Elaeis guineensis Jacq.). The research was conducted in 6 stages; (1) Data Collection, (2) Data Analysis with stepwise regression and discriminant analysis, (3) Modeling Land Suitability Criteria with the boundary line method, (4) Valida…
This study proposed to determine the relationship between the morphological and physiological character during the development of oil palm fruit (Elaeis guineensis Jacq) with yield components and harvest time. The results obtained are useful for determining the pattern of oil palm fruit development, the composition of fat at various levels of fruit development and for looking for suitable fruit…
The objective of the research was to analyze the variability of agronomic and seed quality components related to K fertilizer in soybean mixed populations and to analyze whether K fertilizer affected the quality of soybean seed. This study used a randomized block design with three repetitions. The main factor is the genotype consists of G1= Detam 1, G2 = Detam 2, G3 = Detam 3, G4 = Anjasmoro, G…
Corn consumption increases every year which means the production must be increased. One of effort that can be done is extensification on peatsoil. Peat soil has considerable potential but has low fertility. Dolomite is often used to overcome the low fertility of peat soil, but also increases the solubility of organic compounds. Other ameliorants that containing polyvalent cations are available …
Peatland is one type of lands that is included in the marginal land criteria. . Developing food crop commodities is one of the alternatives for the peatland agriculture development, especially for rice plants with a rooting criterion of 40-50 cm. To improve the nutrients and peat productivity, the additions of macro nutrients like N, P, and K, rice straw organic matter, compost, and cellulolyti…
This study aims to determine the impact of the application of P fertilizer which is very intensive in the first planting cycle of oil palm to the accumulation of various forms of P fractions in the soil (total P, P available, P organic, inorganic P, Ca-P, Al-P, Fe -P and P covered / occluded) as well as Phosphate nutrient uptake in the second oil palm planting cycle. In the first planting c…
Oil palm plantation development in recent year has undergone limitation of suitable land for cultivation, so to increase the production both for seed supply and for oil production in the future are emphasized on land intensification and resource use efficiency. In order to obtain high quality seed of oil palm, identification of suitable female parent which is able to produce greater number of v…
This study was aimed to determine the genetic diversity of populations of Kulim commonly grown in Riau Province by RAPD markers. The analysis was carried out at Laboratory of Molecular Genetics, Center of Research and Development of Biotechnology and Tree Improvement of Forest Plants in Purwobinangun, Sleman, Yogyakarta. Cambium from 36 trees were sampled from 3 populations, i.e. from Bengkalis…
This study aimed was to isolate non symbiotic N fixation bacteria from oil palm plantations fertilized with empty fruit bunch (EFB) and palm oil mill effluent (POME) and to analyze their potency. The soil samples were sampled from private oil palm plantations in Pelalawan, Riau. The soil samples were taken by purposive sampling method from 4 different treatments ie mixed application (EFB + POME…
The objectives of this research were to obtain intensity data fire caterpillar pests Setora nitens and population abundance of Eocanthecona furcellata predators in oil palm plantations in Riau Province, obtain biological data Eocanthecona furcellata from Riau with alternative feed larvae of weaver ants (kroto) and get a rate of predation and power predation Eocanthecona furcellata predator from…
The aim of this study is to obtain suitable, effective and efficiento of isolate Rhizobium bacteria in increasing A. crassicarpa growth in nursery and to know the species of symbiotic nitrogen-fixing bacteria that associated with A. crassicarpa plant. The symbiotic nitrogen-fixing bacteria isolated from root nodules of A. crassicarpa that collected from several trees were planted in several pea…
The aim of this inquiry is to examine the issue of drought stress and dosage of K fertilizer and its interaction towards physiology, development and yield of sweet corn and whether K fertilizer can overcome drought stress on sweet corn. This research was conducted in the greenhouse, Department of Agrotechnology, Faculty of Agriculture, Riau University from September to November 2017. The experi…
Oryctes rhinoceros is one of the main pests in oil palm. These pest can reduce production until 69%, even causing 25% of young plants to die. Control efforts conducted by smallholders or large companies generally use synthetic insecticides. To reduce the effects of synthetic insecticides, one of the alternatives that can be used in the technique of pest control O. rhinoceros is by the used of n…
This research was conducted in three places, Hama Tumbuhan laboratory,(Technical Implementation Unit) Experimental Garden Faculty of Agriculture, University of Riau and in field. This study aims to obtain the predation rate and predator power of Sycanus croceovittatus from Riau in controlling the caterpillar pests of Setora nitens in oil palm crops. The study was prepared in the form of a …
This study was conducted to determine yield potential of soybean cultivars and the rates of phosphorus fertilizer appication in peatland. The field experiment was establiished in a factorial manner and arranged in a completely randomized block design with three replications. The first factor was five cultivars including Kaba, Kipas Putih, KM 14, KM 19, and KM-25. The rates of phosphorus fertil…
MARLINA, NIM. 1310247135, The Formulation of Ameliorant for Peatlands to Boost the Growth and Production of Two Varieties of Maize (Zea mays L), supervised by Nelvia and Armaini. The research is aimedat obtaining ameliorant formulation in order to increase the growth and production of corn as well as identifying the uptake of heavy metals by maize seed of Varieties Pertiwi-3 and NK-212 on peat…