Oil palm is a very important plant because it is one of the world's vegetable oil producing plants. Oryctes rhinoceros is one of the important pests that attack oil palm plants. The recommended control of Oryctes rhinoceros is used integrate pest control, one of which can use the biological agent of the fungus Metarhizium anisopliae. The composition of oil palm empty fruit bunches can be a medium rich in organic matter for the breeding of Fungus Metarhizium anisopliae. This research aims to study the best concentration of Metarhizium anisopliae in oil palm empty fruit bunch compost (metankos) to infect Oryctes rhinoceros larvae. This research was conducted in Laboratory of Plant Pests, Faculty of Agriculture, University of Riau, from April to October 2019. This study is experimental with Complete Randomized Design with 6 treatments and 5 replications. The treatment of Metarhizium anisopliae concentration on metankos consisted of : 0 g.l−1, 10 g.l−1, 20 g.l−1, 30 g.l−1, 40 g.l−1, and 50 g.l−1 Metarhizium anisopliae. The results show is concentration of Metarhizium anisopliae 50 g.l−1 water with a total mortality of 56% larvae.
Oil palm is a pre-eminent commodity in Indonesia, especially in Riau Province. The main pests that attack the oil palm is the pest of beetle Oryctes rhinoceros. The life cycle of pre-adult O. rhinoceros is on the ground, while the one that attacks the plant is the beetle stadia. The application of oil palm empty bunches (OPEB) to oil palm cultivation that functions as mulch and soil compost can improve the physical and biological properties of the soil, otherwise O. rhinoceros actually increases its population with OPEB application. The objective of this research is to know the population of O. rhinoceros in oil palm plantation given mulch of empty palm oil bunches. Research using survey method, observation done at PT. Adei Plantation & Industry. Observations made on the pradati with the size of the soil as a sample, to catch the adult beetles used ferotrap using pheromones as much as 5 ferotrap on 10 ha of land. Observations included the pre-adult population, the beetles population of O. rhinoceros, sex ratio, biomass, attack intensity. The results of research that has been done shows that in the low adults population were the average of 8 tails per week, instar 2 most found was 15 tails. The population of beetles O. rhinoceros were the average of 23.8 tail / ferotrap / month. Population O. rhinoceros 1st week and 2nd, 3rd week decreased, lowest was at 4th week. The sex ratio of female and male beetles was 19.4: 4.4 or 4.54: 1. The intensity of O. rhinoceros attack was 11.72 ± 2.01% belonging to the category of minor attacks.
The use of organic matter in agricultural production is important in increasing crop production, especially in Ultisols. This study aimed to study the interaction between vermicompost and biochar on the growth and yield of soybean (Glycine max L.) in Ultisols. The research was carried out in the experimental station of the Faculty of Agriculture, Riau University, Bina Widya Tampan campus, Pekanbaru from July - September 2018. The research used factorial design form in a completely randomized design. The first factor is vermicompost which consists of 4 levels (doses of 0, 25, 50 and 75 g of polybag-1) while the second factor is biochar consisting of 4 levels (doses of 0, 25, 50 and 75 g of polybag-1) for each combination repeated 4 times. The parameters observed were the number of effective roots, proportion of effective nodules, plant height, number of primary branches, age of plants, age of harvest, proportion of well-fused pods, number of seeds, seed weight and weight of 100 seeds. The results showed that the interaction of vermicompost at a dose of 25 g.polybag-1 following a dose of 50 g.polybag-1 biochar increased the number of effective root nodules, the proportion of effective root nodules, the number of primary branches, the proportion of pithy pods, and accelerated plant age and soybean plant age compared without treatment but not significantly compared to other combinations.Key words : Soybean, vermicompost, biochar
Komoditas padi merupakan pangan utama dan banyak ditanam di Desa Pulau Rambai Kecamatan Kampa Kabupaten Kampar. Serangan hama merupakan kendala utama dalam pembudidayaan tanaman padi. Konsep Pengendalian Hama Terpadu (PHT) diterapkan ke petani padi yaitu memadukan teknik pengendalian hama yang kompatibel, mengutamakan pengendalian alami menggunakan musuh alami. Pengabdian bertujuan memberikan penyuluhan, pendampingan dan bimbingan petani padi menerapkan PHT untuk meningkatkan kuantitas dan kualitas produksi padi. Sasaran yang ditujukan adalah petani padi di Desa Pulau Rambai. Metoda penerapan yang dilakukan adalah penyuluhan, pembimbingan dan pendampingan. Penyuluhan berupa penyajian di pondok sawah petani mengenalkan konsep PHT, pengelolaan budidaya tanaman yang kurang sesuai untuk perkembangan hama padi, dan pengenalan jenis musuh alami hama, dan jenis pengendalian yang ramah lingkungan seperti pestisida nabati dan agen hayati. Pembimbingan dan pendampingan petani dalam pemantauan hama, musuh alami, dan ekosistem padi. Tingkat ketercapaian sasaran program terpantau dari kuisioner yang diisi oleh petani sebelum penyuluhan dan akhir program kegiatan pendampingan. Dari kuisioner terlihat adanya perubahan pandangan dan pengetahuan petani dalam konsep pengendalian hama. Ketercapaian program juga terlihat dari adanya perubahan cara budidaya seperti sistem legowo 4x1 dengan 3 bibit per rumpun dan pengendalian hama menggunakan pestisida hayati sesuai yang disuluhkan.
Oil palm is a pre-eminent commodity in Indonesia, especially in Riau Province. The main pests that attack the oil palm is the pest of beetle Oryctes rhinoceros. The life cycle of pre-adult O. rhinoceros is on the ground, while the one that attacks the plant is the beetle stadia. The application of oil palm empty bunches (OPEB) to oil palm cultivation that functions as mulch and soil compost can improve the physical and biological properties of the soil, otherwise O. rhinoceros actually increases its population with OPEB application. The objective of this research is to know the population of O. rhinoceros in oil palm plantation given mulch of empty palm oil bunches. Research using survey method, observation done at PT. Adei Plantation & Industry. Observations made on the pradati with the size of the soil as a sample, to catch the adult beetles used ferotrap using pheromones as much as 5 ferotrap on 10 ha of land. Observations included the pre-adult population, the beetles population of O. rhinoceros, sex ratio, biomass, attack intensity. The results of research that has been done showsthat in the low adults population were the average of 8 tails per week, instar 2 most found was 15 tails. The population of beetles O. rhinoceros were the average of 23.8 tail / ferotrap / month. Population O. rhinoceros 1st week and 2nd, 3rd week decreased, lowest was at 4th week. The sex ratio of female and male beetles was 19.4: 4.4 or 4.54: 1. The intensity of O. rhinoceros attack was 11.72 ± 2.01% belonging to the category of minor attacks.Keywords: beetles O. rhinoceros, oil palm empty bunches, fluctuations, population.
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