ABSTRACT The productivity of upland rice in Kampar has decreased due to inappropriate planting time. Climate change has resulted in water needs not being met when plants need it to experience the risk of crop failure. This research was conducted to determine the level of groundwater availability based on the analysis of land water balance and setting the planting time of upland rice. The m…
ABSTRACT Empty fruit bunches, rice straw, corn cobs, and acacia leaves are kind of agricultural waste. These organic materials can be composted. The epigeic worm group contains earthworms capable of decomposing agricultural waste, one of which is Lumbricus rubellus. It is unknown which organic matter can increase the growth of earthworms and produce high quality compost. The purpose of thi…
ABSTRACT Oil palm is one of the plantation crops that acts as the mainstay of exports and the largest contributor to foreign exchange in Indonesia, therefore it is necessary to prepare good seeds for planting. The main factors that need to be considered in determining and getting good quality seeds are intensive care and genetic factors. Oil palm seeds in optimal growth and development req…
ABSTRACT Oil palm plantation has an important role for the development of national plantation in Indonesia, in purpose to create job opportunities that lead to community welfare and also become the source of foreign exchange or tax for the country. Over the last four years, the area of oil palm plantation in Indonesia has increased from 10.4 million hectares since 2013 and continued to 12.…
ABSTRACT Soybean (Glycine max (L.) Merrill) is one of the palawija crops that have long been cultivated by the people of Indonesia. Soybeans can be processed into tempeh, tofu, soy sauce, tauco, etc. This plant has an important meaning to meet food needs in order to improve community nutrition. Domestic soybean production has not been able to meet the demand for soybeans for the manufactur…
ABSTRACT This study aims to determine the effect of giving inorganic fertilizer NPKMg and organic super K fertilizer and to get the best combination dose of inorganic fertilizer NPKMg and organic super K fertilizer on the growth of oil palm seedlings at the age of 7 – 13 months. This research was conducted for 6 months starting from October 2020 to April 2021. Using a factorial Completel…
ABSTRACT This research aims to find out the influence of planting media, the influence of biological fertilizers, and the interaction between planting media and biological fertilizers on the growth and yield of red ginger plants, as well as to obtain the composition of planting media and the number of applications of the best biological fertilizers for the growth and yield of red ginger pl…
ABSTRACT The decline in mung bean production in Indonesia is due to a decrease in planted area. Efforts to increase mung bean production can be done with efficient fertilization. Fertilization can be done with organic and inorganic fertilizers. Oil palm plantations produce solid waste in the form of empty oil palm fruit bunches (OPEFB) which can be used as raw material for making organic f…
ABSTRACT Tomato (Solanum lycopersicum Var.) is a type of horticultural plant that is classified as a fruit vegetable and it is widely cultivated in Indonesia. Tomato (Solanum lycopersicum Var.) is an agricultural commodities with high economic value and is widely cultivated commercially. This plant comes from America, especially Central America and South America, but can thrive in Indonesi…
ABSTRACT Oil palm empty fruit bunch compost can improve soil structure, increase plant nutrient reserves and increase soil organic matter content. Compost aims to improve fertility and soil structure which is decreasing due to excessive use of chemical fertilizers. This study aims to determine the interaction effect of oil palm empty fruit bunches compost and NPK on increasing the growth o…
ABSTRACT Mung bean is a legume (leguminosa) which in terms of agronomic aspects has advantages when compared to other legumes. The production of mung bean, especially in Riau Province, has decreased from year to year, this is because farmers are less interested and fertile land is limited, so that the use of less fertile land is intensified on the land. Efforts that can be made to support …
ABSTRACT Red ginger (Zingiber officinale var. Rubrum) is a plant that has many benefits has resulted in an increasing demand for red ginger. The research aims to obtain the concentration of Pseudomonad fluorescens which is capable to control bacterial wilt disease caused by Ralstonia solanacearum of red ginger (Zingiber officinale var. Rubrum). The research was conducted at the Laboratory …
ABSTRACT Oil palm cultivation on peatlands is faced with various limiting factors for its growth such as high acidity. Efforts that can be made to overcome problems in peat soils to reduce degradation and restore peat soil fertility can be done by giving ameliorant which can also increase oil palm productivity. One type of ameliorant is PKS boiler ash which comes from burning palm kernel s…
ABSTRACT Shallot (Allium ascalonicum L.) is a horticultural plant that contains carbohydrates, fats, vitamins and minerals. The productivity of shallots are low in Riau Province, which is caused by Xanthomonas sp. This bacterium is the pathogen of the important disease that attack at various growth stages in shallot plants. The Symptoms is yellowish white spots, chlorosis to shoot death. T…
ABSTRACT This research aims to increase the growth and production of ipomea reptans Poir that were given Growmore leaf fertilizer at different spraying intervals, and the concentration and interval of leaf fertilizer. The research was conducted experimentally using a completely randomized design (CRD), consisting of 2 treatments and repeated 3 times. The first treatment was the concentrat…
ABSTRACT Porang (Amorphophallus muelleri Blume.) is one of the plants that has the potential to be cultivated on peatlands. This research aimed to increase the growth of porang on peat media for 6 months after planting by using bulbil size with dolomite. This research was conducted in the Technical Management Unit of Experimental Gardens, Faculty of Agriculture, Riau University from Octobe…
ABSTRACT Shallots are horticultural crops that have an important role as the Indonesian trade vegetable commodities, one of which is used as a kitchen spice. The low productivity of shallots in Riau Province is caused by the use of poor planting media such as Ultisol. Whereas Ultisols land has the potential to be developed in Riau. Ultisols soil constraints include the very low content of …
ABSTRACT Oil palm is a plantation crop that plays a strategic role in the Indonesian economy because this commodity has bright prospects as a source of foreign exchange. The experiment aims to know the effect of interaction giving NPK fertilizer and rice husk compost and get a best combination dose for the growth of oil palm seedlings in the main nursery. The research was conducted experim…
ABSTRACT Palm oil is the largest vegetable oil-producing plantation crop in the world. Riau Province is one of the centers of palm oil production in Indonesia. One of the causes of the decline in palm oil production is stem rot disease caused by the pathogenic fungus Ganoderma spp. The aims of this study were to determine the effect of inoculation of Ganoderma spp. isolates from palm oil p…
ABSTRACT The rhizosphere is a habitat for various kinds of soil microorganisms, both beneficial and parasitic. The availability of nutrients released by root exudates is an important reason for the presence of these microorganisms, besides the rhizosphere is also an entry point for soil pathogens. This study aims to obtain, select and test the rhizosphere bacteria which have the antagonist…