ABSTRACT Palm oil is one of the important plantation commodities in Riau Province. One of the causes of the decline in oil palm production in Riau Province is stem rot disease caused by the pathogenic fungus Ganoderma sp. This study aims to determine the diversity of Trichoderma spp. the origin of the rhizosphere of oil palm plants in Kampar Regency which was attacked by Ganoderma sp. and …
ABSTRACT The objective of the research was to observe the effect of the formulation of biological fertilizers based on organic liquid waste with a consortium of good cellulolytic bacteria to increase growth and yield of shallot. The study was conducted in the Experimental Garden of the Faculty of Agriculture, University of Riau, from February to April 2019. The design of the research was R…
ABSTRACT A supply of nutrients is required for the growth and development of the white oyster mushroom (Pleurotus ostreatus). The use of NPK fertilizer attempts to improve the source of media nutrients, resulting in higher quantity and quality results. Growth regulators can help oyster mushroom mycelium grow for a longer period of time. Hormones that support growth rates are found in growt…
ABSTRACT Sweet corn (Zea mays saccharata Sturt.) is a food crop that is widely cultivated in Indonesia. Sweet corn has economic value and a good nutritional content. This study aims to see the effect of the interaction and single factor of green lamtoro fertilizer and P fertilizer and to get a good combination of treatments on the growth and production of sweet corn plants. This research w…
ABSTRACT Eventhogh rambutan is originating from Indonesia, its variability tent to decrease doe to farmer selection to plant marketable varieties. So, the objectives of this study whose to determine the diversity of ceveral morphological characteristic and to look for the relationship between relative of rambutan plants in Bengkalis Regency. Thirtyone plants were chosen by purpossive rando…
ABSTRACT Helicoverpa armigera Hubner is a pest on the corn plant. H. armigera pest control is usually performed using synthetic insecticides, however the unwise of them use can cause negative impacts to humans and the agricultural environment, then necessitating alternative insecticides that are safer and environmentally friendly such as the use of the seed extract of the crown of god (Pha…
ABSTRACK Coffee is one of the mainstay commodities of Indonesian plantations because Indonesia is the third largest exporting country after Brazil and Vietnam. One type of coffee that is widely grown in Indonesia is the Liberica type. One of the obstacles in developing coffee on peatlands is the presence of phenolic acids which are phytosic for plants and cause plant growth to be stunted. …
ABSTRACT Black soybean production in Indonesia has not been able to meet national consumption. This problem can be overcome by applying liquid organic fertilizer and adjusting the spacing. This study aims to determine the effect of various spacings and concentrations of liquid organic fertilizer on the growth and production of black soybeans. This research was conducted from June to Septe…
This study aims to observe the effect of coconut water tofu liquid waste, and to the best concentration on the growth and production of red onion (Allium ascalonicum L.). This research has been conducted in the experimental station of Agriculture Faculty of Riau University, Pekanbaru. The study was conducted from July to September 2016. The experiment was conducted using Completely Randomized D…
A research has been conducted to study the effect of the concentration of mutagen SA and obtain the best concentration to improve generative growth and yield components of M-1 generation on two local varieties upland rice from Pelalawan Regency. The research has been conducted at UPT Kebun Percobaan, Agriculture Faculty, University of Riau, from April to July 2014. The research used factorial e…
Tomato is one of the leading agricultural commodity that has a good prospect in marketing. It showed by a high demand for this commodity but not balanced with the supply because the productivity is still low especially at the lowland. To overcome this problem, plant breeder must strive to assemble new varieties suitable for cultivation in the lowland. This study aims to examine the growth and y…
Fruit flies are the major pest in guava. Research aimed to knowing the effectiveness of some type of traps for fruit flies at guava plant (Psidium guajava L). Research is implemented by using a randomized block design (RBD) with 4 treatments and 16 groups, in order to obtain 64 units of the experiment. The treatments are: ball, cube, card, cylinderl. The data analysis statistically to a diverse…
The aims of research to study the effect of application several ratio of ameliorant (dregs and Oil Palm Empty Fruit Bunch (OPEFB) compost) and natural Plant Growth Regulator (PGR) on rice production and gas emission of CO2 and CH4 in peatlands. This research was conducted on Tanjung Air Hitam village, Kerumutan, Pelalawan-Riau from August 2012 until January 2013. The easy conducted in field, th…
Helicoverpa armigera Hubner is a major problem in maize cultivation. H. armigera can cause a yield loss of production 40%. Control using vegetable insecticides soursop seed extract (Annona muricata L.) is an alternative control of H. armigera. This study aimed to obtain an effective concentration of soursop seed flour extract to kill H. armigera larvae in corn. This research was carried out…
ABSTRACT The use of inorganic fertilizers and chemical pesticides in increasing chili production at high doses continuously can damage the environment and resistant to pests. The use of inorganic fertilizers and chemical pesticides can be minimized by environment friendly products. The research was conducted by combining the application of biofertilizers and local B. bassiana to support th…
ABSTRACT The aims of this research is to improve the growth of seedlings of oil palm plant (Elaeis guineensis Jacq.) seedlings under hypoxia conditions by applying foliar fertilizers with growth regulators. This research was conducted at experimental field of the Faculty of Agriculture, Universitas Riau from July to November 2019. The study was conducted with a split plot design in simple …
ABSTRACT This study were aims to test the ability of Paenibacillus sp. bacteria. with different concentrations and look for best concentrations of phosphate solubilizing microbes (PSM) Paenibacillus sp. to growth and production of soybean crops in ultisol soil. The method used in this study was a complete randomized design (CRD) with five treatments and three replays. The treatment used is…
ABSTRACT Demand on peanuts in Riau Province is always increasing every year, whle the production is decreasing which makes the demand on the peanut is ot fulfilled. Efforts need to be made to overcome these obstacles, such as the provision of Phonska fertilizer to help absorb plant nutrients and suitable spacing for planting peanuts. This study aims to determine the effect of Phonska ferti…
ABSTRACT The aims to determine the effect and obtain the best dose of Trichocompost Empty Palm Oil Bunches on the growth and production of pakcoy (Brassica rapa L.). This research was conducted in the experimental garden of the Faculty of Agriculture, Riau University, Bina Widya Campus Km 12.5 Pekanbaru. This research was carried out for 3 months, starting from January - March 2021. This …
ABSTRACT Japanese cambodia (Adenium sp.) is one of the horticultural commodities of ornamental plant species whose beauty lies in the flowers, roots, and stems in the form of humps. The purpose of this study was to determine the best dose of NPK fertilizer and the composition of the appropriate growing media for the growth of Japanese frangipani (Adenium sp.) plants. This research was carr…