ABSTRACT Upland rice production can be increased by utilizing sub-optimal land. However, efforts need to be made to increase the availability of nutrients and water in the soil. This study aims to increase the growth and yield of upland rice by applying rice husk zeolite and N fertilizer. The research was conducted experimentally factorial using completely randomized design (CRD). The first fa…
ABSTRACT The peatland typology of the Siak Regency Mosque Bay is on the side of the Siak River. The fertility rate of peat near river flows tends to be more fertile. This study aims to identify soil fertility levels and ash content, fiber content, pH, C-organic, N-total, C/N and their relationship with peat thickness. The research was carried out by survey method. Determination of drilling poi…
ABSTRACT This research aimed to determine the effect of potassium fertilizer application and obtained the interaction between the best dose and frequency of potassium fertilizer application on the growth and yield of rice. This research using a completely randomized design (CRD) with two factors, namely the dose of KCl fertilizer (100%, 150%, 200% of the recommended dose of 100 kg.ha-1), and t…
ABSTRACT Roses are known as ornamental plants that can be used for various purposes. Rose production in Riau has increased, so the availability of this plant needs to be increased in cultivation, one of which is by vegetative propagation by cutting. The purpose of this study was to know the interaction effect of cutting size and concentration of Rootone-F growth regulator, size of cutting, con…
ABSTRACT The purpose of study is to know the main effect of various organic mulch compositions and earthworms and their interactions on changes in the physical properties of oil palm-planted inceptisols and to obtain the best combination of various organic mulch and earthworm compositions in improving the physical properties of oil palm-planted inceptisols. This research is an experiment using…
ABSTRACT Eggplant (Solanum melongena L.) is a horticultural product that has been widely spread in Indonesia. Eggplant plant in English is called eggplant is a tropical plant originating from the continent of Asia, especially Indonesia. This study aims to determine the interaction effect of NPK fertilizer and guano fertilizer on eggplant growth and production and to determine the effect of NPK …
ABSTRACT Palm oil is one of the plantation crops that produce vegetable oil, which is currently the main and priority agricultural commodity in Indonesia. The growth of palm oil seedlings is largely determined by good cultivation efforts such as the use of good planting media and the provision of nutrients. Adequacy of nutrients in the planting medium greatly affects the growth of the plant it…
ABSTRACT The low productivity of upland rice on Ultisol soil is caused by various constraints including low pH, had low content of macronutrient N, P, K, Ca and Mg, BS and CEC were low, solubility and high Al saturation, high P fixation, delicate to erosion and water availability were low. Applied of zeolite synthesized from coal fly ash with high CEC is expected to overcome these constraints.…
ABSTRACT The conversion of peat swamp forests into various land uses followed by the construction of canals causes the peat to mature more quickly. This study aims to determine the characteristics of peat maturity in various land uses in the Kampar Peninsula. The research was conducted on six land uses, namely mixed garden, oil palm, acacia plantations, open land, peat swamp scrub and primary …
ABSTRACT This study aims to determine the interaction, combination and effect of rice husk biochar and a source of phosphate fertilizer on the chemical properties of Ultisol soil and the growth and yield of shallot plants. The research was carried out at the Experimental Garden and Laboratory of Soil Science, Faculty of Agriculture, University of Riau from May to August 2022. The research was …
ABSTRACT The aims to identified the number of types of macrofauna and mesofauna as well as the growth and productivity of oil palm plants on Dystrudepts soil applied with compound fertilizer (KCaMgS) and oil palm empty fruit bunch (OPEFB) mulch. Research using randomized block design (RBD) consisted of six treatments with three replications to obtain 18 experimental units. Parameters observed …
ABSTRACT Shallot (Allium ascalonicum L.) is a root vegetable and is one of the leading horticultural commodities used as a mixture of seasonings and processed form. The need for shallots continues to increase as the population increases. Data from the Central Statistics Agency and the Director General of Horticulture (2020) show that shallot production in Riau is relatively low. This low produ…
ABSTRACT Rose ornamental plants have economic value benefits, such as raw materials for perfumes, medicines and cosmetics. In general, the propagation of rose plants is by cuttings, but the success rate is relatively low due to the delay in the root development of the cuttings. The addition of exogenous hormones in the form of natural growth regulators (ZPT) is needed to overcome obstacles to …
ABSTRACT This research aims to determine the interaction of bulbil weight and auxin, the best effect of auxin concentration and bulbil weight, and the best combination of auxin and bulbil weight on increasing the growth of porang seedlings. The research was carried out from June to August 2022. The research was carried out experimentally in the form of a 3 x 4 factorial, arranged using a compl…
ABSTRACT Corn (Zea mays L.) is an important food crops in Indonesia. Spodoptera frugiperda J.E. Smith is a pest that attak on young leaves Zea mays L.. Pepper elder (Peperomia pellucida L.) is one of the plants that has the potential as a botanical insecticide to control pests. This research was aimed to obtain an effective concentration of stems and leaves pepper elder (P. pellucida L.) to co…
ABSTRACT Shallot is a superior horticultural commodity which is widely used, but shallot production in Riau Province is still relatively low, this is caused by fusarium wilt disease caused by the pathogen Fusarium oxysporum. This study aims to obtain the level of attack of fusarium wilt in shallot planting areas in Kandis District and Bunga Raya District, Siak Regency. Survey and observation m…
ABSTRACT This study aims to look at the variability of seed development variables and yield components of several green bean varieties planted at several planting meetings. The study was carried out experimentally using a randomized block design consisting of two treatment factors resulting in 12 combinations and three replications, resulting in 36 experimental units. The observed characters i…
ABSTRACT This study aims to determine the effect of induction of salicylic acid and obtain the best concentration in controlling basal stem rot disease caused by Ganoderma sp. isolate LPTUNRI-Gan003 in the main nursery. This was an experimental study conducted in April 2022 to July 2022 at the Laboratory of Plant Pathology and Greenhouse Plant Production Agricultural Laboratory, Faculty of Agr…
ABSTRACT Soybean (Glycine max (L.) Merril) is plays an important role in Indonesia economy because the commodity is used as one of main staple food for the community. The gap between national demand and production is getting wider lately due to limited best cultivars and poor cultivation techniques. So that, this study was intended to determine genetic parameters and relationships among severa…
ABSTRACT The aim of the research was to determine the effect of the interaction between damping the canopy and applying potassium fertilizer on the production of oil palm (Elaeis guineensis Jacq.) plants at close spacing. This research was conducted in Petapahan Village, Tapung District, Kampar Regency from December 2021 to June 2022 in the form of a randomized block design trial with two trea…