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All Journal Jurnal Online Mahasiswa (JOM) Bidang Pertanian
M. Mardhiansyah Mardhiansyah
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Agriculture, Biological Sciences & Forestry

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APLIKASI PENGARUH ABU SEKAM PADI TERHADAP PERTUMBUHAN SEMAI AREN (Arenga pinnata Merr) PADA MEDIUM GAMBUT Pandu Rasyidi; M. Mardhiansyah Mardhiansyah; Viny Volcherina Darlis
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 8 (2021): Edisi 1 Januari s/d Juni 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Abstract

Aren (Arenga pinnata Merr) is a type of palm plant that produces fruit, sap and starch or flour in the stems. Peat from its natural formation process has a low fertility rate because it contains high organic acids. Rice husk ash is the result of burning rice husk which can improve soil properties, so that it can support more optimal plant growth and development. The purpose of this research was to determine the effect of the application and the best composition of rice husk ash on the growth of palm seedlings on peat medium. This study used a non-factorial completely randomized design (CRD), which consisted of one factor, namely the dose of rice husk ash with 5 treatment levels and 4 replications in order to obtain 20 experimental units. The treatment of rice husk ash (T) consists of 5 levels with the following dosages: T0 = without application of rice husk ash (control) 100% peat, T1 = application of rice husk ash 10% polybag + 90% peat, T2 = application of rice husk ash 20 % polybag + 80% peat, T3 = application of rice husk ash 30% polybag + 70% peat, T4 = application of rice husk ash 40% polybag + 60% peat. The application of rice husk ash affects the dry weight of palm (Arenga pinnata Merr) on peat medium. The best application of rice husk ash at a dose of 40% rice husk ash plus 60% peat can increase the growth of increase in diameter 0.29 mm, plant dry weight of 1.92 g, crown ratio root 2.25. Keywords : Arenga pinnata, rice busk, growth.  
PEMANFAATAN ASAP CAIR DALAM PENGENDALIAN TUMBUHAN MANTANGAN (Merremia peltata) SEBAGAI GULMA M. Khalil Iqbal Lubis; M. Mardhiansyah Mardhiansyah; Sonia Somadona
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 8 (2021): Edisi 1 Januari s/d Juni 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Merremia peltata is a type of Invasive Allien Species (IAS) that belongs to one type of liana plants located in the tropics. Efforts to combat exgan for now are still very minimal because information about morphology and physiology of Merremia peltata is still lacking. The importance of this research is directed to develop an innovation in the control of exgan weeds by utilizing liquid smoke as a natural herbicide. This study aims to: (1) to find out the influence of liquid smoke as a natural herbicides in controlling the growth of Merremia peltata weeds; (2) to know the best dose of liquid smoke as a natural herbicide in controlling the growth of Merremia peltata. The study used the Complete Randomized Design (CRD) method which used five treatments and five repeats. Merremia peltata that has been grown for 14 days in 25 polybags 30x45 cm each polybag contains three Merremia peltata. After that spraying using grade 3 liquid smoke of various concentrations is carried out on the 15th day after planting. Spraying of grade 3 liquid smoke as much as 15 ml per polybag is carried out every two days until the 33rd day after planting. The data obtained was analyzed using fingerprint analysis test, if the real effect continued with Duncan's New Multiple Range Test (DNMRT) at a level of 5%. The data obtained and analyzed statistically using the SPSS application program. The results showed that the application of natural herbicides with grade 3 liquid smoke base material has an effect in suppressing the growth of Merremia peltata. Application of grade 3 liquid smoke with a dose of 15 ml / l is the most influential control and best in suppressing the growth of Merremia peltata as weeds Keywords : Merremia peltata, weed, liquid smoke, control, grade 3 
Co-Authors M. Khalil Iqbal Lubis Pandu Rasyidi Somadona, Sonia Viny Volcherina Darlis