scholarly journals PENGARUH PENINGKATAN DOSIS KALIUM DAN JENIS PESTISIDA NABATI TERHADAP PERSENTASE SERANGAN HAMA DAN PRODUKSI KENTANG DI SUMATERA UTARA

2019 ◽  
Vol 4 (1) ◽  
pp. 11
Author(s):  
Lamria Sidauruk ◽  
Masdasari Kaban ◽  
Parsaoran Sihombing
Keyword(s):  
Crop Production ◽  
Block Design ◽  
Potato Production ◽  
Plant Production ◽  
Botanical Pesticides ◽  
Botanical Pesticide ◽  
Randomized Block Design ◽  
Neem Leaves ◽  
Production Research ◽  
North Sumatra

<h1>Potato production in Karo and Simalungun Regency of North Sumatra is severely limited by the high number of pest attacks,  so that the use of pesticides is absolutely necessary. Increasing potassium doses and application botanical  pesticides can be used as a strategy to reduce pest attacks on potatoes. This study aims to determine whether an increase in potassium dose and application of some botanical pesticides can reduce the percentage of pest attacks and then increasing potato production. Research was designed by factorial Randomized Block Design (RBD) with 2 factors, namely Potassium Dosage consist of 4 levels: K0 = Control; K1 = 100 kg / ha (30 g / plot); K2 = 150 kg / ha (45 g / plot); K3 = 200 kg / ha (60 g / plot). And the second factor is the type of botanical pesticide which consist of 3 levels, namely: N1 = 20 g Neem leaves/ liter of water; N2 = 20 g babadotan leaves/ liter of water; N3 = 20 g Kipahit leaves/ liter of water. Data were analyzed by analyzed of variance.</h1><h1>The results showed that an increase in potassium dosage did not significantly affect the percentage of pest attacks and plant production variables. Botanical pesticides have a significant effect on the percentage of pest attacks, but have not significant effect on crop production variables. The lowest percentage of pest attacks was obtained from the application of botanical  pesticides from babadotan leaf extract.  In general, the percentage of pest attacks in the category was very low  (&lt;25%), so that not significantly affect to production variables.</h1>

scholarly journals PESTISIDA NABATI KAYUMANIS DAN SERAIWANGI UNTUK PENGENDALIAN HAMA PENGGULUNG DAUN NILAM Pacyzancla stultalis

2018 ◽  
Vol 28 (2) ◽  
pp. 163
Author(s):  
Herwita Idris ◽  
NFN Nurmansyah
Keyword(s):  
Block Design ◽  
Cinnamon Oil ◽  
Botanical Pesticides ◽  
Leaf Roller ◽  
Alpha Pinene ◽  
Citronella Oil ◽  
Botanical Pesticide ◽  
Randomized Block Design ◽  
Synthetic Pesticide

<em>Botanical pesticide is one of the alternatives to control pest and relatively safe for the environment. Cinnamon oil and citronella oil commonly used as botanical pesticide to control leaf roller</em> Pachyzancla stultalis<em> attack on patchouli, hence maintaining patchouli productivity. This study aimed to find the best botanical insecticide formula made of cinnamon oil and citronella oil to control leaf roller attack without decreasing the quality of patchouli oil. Research was conducted in patchouli farmer's plantation in Solok Regency, Kenagarian Gantung Ciri from January to October 2013. The research was arranged in  Randomized Block Design with four treatments (Pesnab KM 40, Pesnab SW 50, synthetic insecticide deltamethrin 25 EC and without pesticide as control) repeated six times. Botanical pesticide, Pesnab KM 40 and SW 50, were formulated using 40 % cinnamon oil  (KM 40) and 50 % citronella oil (SW 50). The plant tested was one month old Sidikalang variety in polybags. The KM 40 botanical pesticide formula was more effective  to  control </em>P. stultalis <em>larvae pest than control and SW 50 botanical pesticide, and as effective as synthetic pesticide. The herb yield, oil yield, oil content and patchouli alcohol (PA) content of KM 40 treatment were not significantly different compared to synthetic pesticide, but higher than control. Patchouli oil components such as alpha pinene, beta pinene, limonene, copaene, karyophylen, guanen, allo-aromadrene and gurjunen, was not significantly different among treatments. Botanical pesticides made from cinnamon oil can be used as alternative to control P. stultalis larvae attack in patchouli.</em><p> </p>

scholarly journals Effect of Microbial Inoculants on Plant Attributes and Nutrients Uptake by Soybean in Vertisols

2021 ◽  
pp. 102-109
Author(s):  
Sanjeet Kumar ◽  
R. K. Sahu ◽  
R. K. Thakur ◽  
Bablu Yaduwanshi ◽  
N. G. Mitra
Keyword(s):  
Crop Production ◽  
Plant Biomass ◽  
Block Design ◽  
Soil Health ◽  
Microbial Consortia ◽  
Microbial Inoculants ◽  
Randomized Block Design ◽  
Nutrients Uptake ◽  
Agricultural Chemistry ◽  
Plant Attributes

The present study was carried out during kharif season 2019-20 at the Research Farm, Department of Soil Science & Agricultural Chemistry, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur, Madhya Pradesh (INDIA), to assess the effect of microbial inoculants on plant attributes and nutrients uptake by soybean in Vertisols. The experiment was laid out under randomized block design (RBD) with three replications. The 15 treatments comprised of different beneficial microbial consortia in possible combinations applied as seed treatments. The crop was supplemented with recommended dose of fertilizers 20 N : 80 P2O5 : 20 K2O kg ha-1. Besides these, two control plots were maintained as fertilized un-inoculated control (FUI) and unfertilized un-inoculated control (UFUI). The findings revealed that the significant improvement were noticed by the application of consortia NPK+EM+PGPR in plant growth attributes of nodulation at 25, 45 & 65 DAS (71, 70 & 59% respectively), over control (9.5, 33.4 & 34.7 nodule plant-1) and its biomass, (62, 69 & 74% respectively),over the control  (0.58, 1.16 & 0.99 g plant-1),  plant height at 25, 45 & 65DAS were increased 61, 40, 41% respectively, over the control (16.20, 34.90 and 44.30 cm) and plant biomass, (48, 62 & 53%), over the control 1.67, 4.73 and 6.1 g plant-1. Similarly, nutrient uptake (seed & stover) were also increased at 25, 45 and 65 stages of crop growth, with 36.6, 34.8 & 51.3% in seed and 66.7, 98.2 & 67.2% in straw respectively over the control (98.5, 63.8, 5.2, and 7.4, 24.9 and 44.4 kg ha-1 respectively). Thus, it may be concluded that the consortium of NPK + EM + PGPR was superior for sustainable crop production and soil health.

scholarly journals Application of Anorganic Fertilizers and Seed Soaking Time with Legume Bacteria on Peanut in Tidal Lowland

2020 ◽  
Vol 3 (2) ◽  
pp. 48-60
Author(s):  
Billy Andreas Putra ◽  
Tengku Boumedine Hamid Zulkifli ◽  
Yunida Berliana ◽  
Octanina Sari Sijabat
Keyword(s):  
Bradyrhizobium Japonicum ◽  
Block Design ◽  
Growth And Yield ◽  
Root Volume ◽  
Inorganic Fertilizers ◽  
Soaking Time ◽  
Seed Soaking ◽  
Randomized Block Design ◽  
Number Of Leaves ◽  
North Sumatra

Introduction: The purpose of this study was to determine the dosage of inorganic fertilizers, soaking time of the inoculation of the legume bacteria strains which were suitable for the growth and yield of peanut in tidal lowland. Materials and Methods: This research was conducted at tidal lowland in Sei Ular Village, Secanggang sub-District, Langkat District, North Sumatra from September to December 2019. The research used randomized block design in factorial. The first factor is the dose of inorganic fertilizers consisting of P0 = un-fertilizer (control), P1= urea 50 kg.ha-1 + TSP 180 kg.ha-1 + KCl 50 kg.ha-1, P2= urea 75 kg.ha-1 + TSP 205 kg.ha-1 + KCl 75 kg.ha-1, P3= urea 100 kg.ha-1 + TSP 230 kg.ha-1 + KCl 100 kg.ha-1. The second factor was the soaking time of the Bradyrhizobium japonicum bacterial strain consisting of T0= un-soaking time, T1= soaking time for 3 minutes, T2= soaking time for 6 minutes, and T3= soaking time for 9 minutes. Parameters were analyzed using ANOVA and BNJ analysis 5%.· Results: The application of urea 50 kg.ha-1 + TSP 180 kg.ha-1 + KCl 50 kg.ha-1 significantly increased the plant height, number of leaves, and root volume and showed the highest number of active nodules, dry pods.plot-1 and seed weight.plot-1 compared to other doses. The seed soaking time with the Bradyrhizobium japonicum strain and their interactions showed insignificant differences in all parameters of peanut plants in tidal lowland.

scholarly journals Adaptasi dan Stabilitas Hasil Galur-galur Aromatik Padi Sawah di Sumatera Utara

2015 ◽  
Vol 33 (1) ◽  
pp. 9 ◽  
Author(s):  
Akmal Akmal ◽  
Cucu Gunarsih ◽  
M. Yamin Samaullah
Keyword(s):  
Block Design ◽  
Average Yield ◽  
Environment Effect ◽  
Genotype X Environment ◽  
High Productivity ◽  
Randomized Block Design ◽  
Check Variety ◽  
Growth Adaptation ◽  
North Sumatra ◽  
Specific Line

This research was aimed to describe the yield stability and growth adaptation of elite lines of aromatic rice in rice production centers of North Sumatra. The experiments were conducted at 10 sites during dry season (DS) 2001 and DS 2002. Research materials consisted of 12 elite lines introduced from IRRI with IR64 as check variety. The treatments were arranged in a randomized block design (RBD) with three replications. Stability analysis was performed using methods of Eberhart and Russell, Finlay and Wilkinson, and Francis and Kanennberg. The results showed that the interaction of genotype x environment effect was very significant, indicating the presence of specific line adaptation on a particular environment. Genotypes which had the highest average yield were not always stable genotypes, as was shown by IR71137-49-1-2 which was more suitable to the sub-optimum environment. Lines IR71143-223-3-2-2-3, IR71146-97-1-2-1-3, IR65610-24-3-6-3-2-3, IR66696-49-1-2, IR71146-407-2-1-2-1, IR71146-122-1-1-2-1 were considered as stable genotypes according to the three analysis methods and each line showed high average yield. Those genotypes are suggested to be planted in the high productivity environments in order to obtain its optimum genetic expressivity on grain yield

scholarly journals Growth Response and Production of Broccoli (Brassica oleracea) With Application of Azolla Composting at Several Plant Spacing

2018 ◽  
Vol 1 (2) ◽  
pp. 179-186
Author(s):  
Wan Arfiani Barus ◽  
Hadriman Khair ◽  
Muhammad Fatrian Irawan
Keyword(s):  
Brassica Oleracea ◽  
Growth Response ◽  
Block Design ◽  
Stem Diameter ◽  
Plant Production ◽  
Plant Spacing ◽  
Stem Height ◽  
Spacing Factor ◽  
Randomized Block Design ◽  
Two Factors

This study aims to determine the growth response and Plant Production of Broccoli (Brassica oleracea Var. Botrytis) with application of Azolla composting in some plant spacing. This research used a Factorial Randomized Block Design with two factors namely: Azolla Composting Factor (A) with 4 levels 0, 32, 64, 96 and A4 = 128 g/plant. Plant spacing factor with 3 levels 45 cm x 45 cm, 50 cm x 50 cm and 55 cm x 55. The results showed that the application of Azolla compost 128 g/plant had significant effect on the stem height, stem diameter and flower weight. Plant spacing in 55 cm x 55 cm only affected the flower weight. There was no interaction between Azolla compost and plant spacing for all parameter observed.

scholarly journals The Effect Cuttings Part and Planting Media Composition to The Growth Seeds Dragon Fruit (Hylocereus costaricensis (Web) Britton & Rose)

1970 ◽  
Vol 6 (2) ◽  
pp. 294-299
Author(s):  
Adli Rifqi Alka Siregar ◽  
Lisa Mawarni ◽  
Chairani Hanum
Keyword(s):  
Block Design ◽  
Stem Cuttings ◽  
Media Composition ◽  
Palm Fruit ◽  
Randomized Block Design ◽  
Dragon Fruit ◽  
Two Factors ◽  
Planting Materials ◽  
North Sumatra ◽  
Range Test

The factors affect the success of cuttings is composition of planting media and position of planting materials. The experiment aims to determine response growth dragon fruit seeds on various composition of planting media. It was conducted in the field of research Agriculture Faculty, North Sumatra University, Medan with the height about 32 meters above sea level on April to August 2016. The design used factorial randomized block design with two factors and three repetitions. The first factor is part of the stem cuttings with three variety i.e. bottom stem, center stem, top stem and the second factor is planting media with four variety i.e. sand 100%, sand 50% + sludge 50%, sand 50% + empty palm fruit bunches (EPFB) 50%, sand 50% + sludge 25% + EPFB 25%. Data were analyzed using analysis of variance followed by Duncan’s multiple range test (DMRT). The results showed that part of the stem cuttings hasn’t effect to all observation parameters.The best planting media composition is present in the treatment sand 50% + sludge 25% + EPFB 25%. Interaction about both of factors hasn’t effect to all observation parameters.

scholarly journals Morfofisiologi Ratun Padi Sistem Tanam Benih Langsung di Lahan Pasang Surut

2017 ◽  
Vol 44 (3) ◽  
pp. 228 ◽  
Author(s):  
Evriani Mareza ◽  
Zainal Ridho Djafar ◽  
Rujito Agus Suwignyo ◽  
Dan Andi Wijaya
Keyword(s):  
Leaf Area ◽  
Crop Production ◽  
Block Design ◽  
Soil Surface ◽  
Dry Weight ◽  
Direct Seeding ◽  
Randomized Block Design ◽  
Tidal Swamp ◽  
Number Of Leaves ◽  
Cutting Height

<p>ABSTRACT<br /><br />The morphophysiology of ratoon is different from the main plant of rice and was influenced by location and cultivation.This research was intended to evaluate morphophysiology characters of rice ratoon planted by direct seeding system in tidal swamp at various stubble cutting height. The experiment was conducted in November 2013-April 2014 at tidal swamp overflow type B in Telang Sari Village, District of Tanjung Lago, Banyuasin, South Sumatra Province. The experiment used randomized block design with 5 replications. Treatment was stubble cutting height 10, 20, 30, 40 and 50 cm above the soil surface. Rice was planted at 4 m x 5 m plot, the distance between plot 1 m. Data were analyzed by test of variance and 5% HSD test. Morphophysiological characters of rice ratoon were influenced by stubble cutting height. Cutting height of 20-40 cm above soil surface increased the ratoon number of tillers per hill, leaf area per hill, dry weight per hill, percentage of empty grains per panicle, grain weight per hill and percentage ratoon/main crop production per hill. The higher stubble cutting, the lower the number of leaves per tiller, leaf area per tiller, carbohydrate content, and number of grains per panicle of ratoon, however it accelerated age of flowering and harvesting. <br /><br />Keywords: direct seeding system, ratoon system, rice growth and production, stubble cutting height<br /><br /></p>

scholarly journals Produção orgânica de quiabo variando coberturas de solo e turnos de rega

2020 ◽  
Vol 1 (52) ◽  
pp. 20
Author(s):  
Francisco De Assis Da Silva ◽  
Armando Rodrigues de Melo ◽  
Pedro Dantas Fernandes ◽  
José Dantas Neto ◽  
Diego De albuquerque Coelho ◽  
...  
Keyword(s):  
Soil Cover ◽  
Block Design ◽  
Plant Production ◽  
Growth And Yield ◽  
State University ◽  
Positive Effects ◽  
Bamboo Leaves ◽  
Randomized Block Design ◽  
Leaf Mulch ◽  
Experimental Plots

<p>The objective of this study was to study the effects of different materials on mulching in combination with irrigation shifts on okra growth and yield. The experiment was carried out in campus II of Paraíba State University, located in Lagoa Seca (PB), it considered four soil mulches (without mulch, banana mulch sheath, bamboo leaf mulch and plastic tarpaulin) and three watering shifts (24, 48 and 72 hours) and used a randomized block design with four replications in a factorial scheme, totalyzing 48 experimental plots, from March to August 2016. Growth variables and production components were evaluated. We had positive effects of soil cover on water saving. The most efficient coverings were white canvas and bamboo leaves, resulting in greater water savings in okra cultivation without harming plant production. It is important to highlight, however, the absence of significant effect related to irrigation shifts on okra development and production, due to the occurrence of rainfall during the period in which the experiment occurred</p>

scholarly journals Effect of Weed Attendance on Long Beans (Vigna sinensis L.) Productivity

AGRIFOR ◽  
2018 ◽  
Vol 17 (1) ◽  
pp. 123
Author(s):  
La Sarido
Keyword(s):  
Crop Production ◽  
Root Nodules ◽  
Block Design ◽  
Growth And Yield ◽  
Total Production ◽  
Vigna Sinensis ◽  
Weed Growth ◽  
Randomized Block Design ◽  
Set Up ◽  
Determine Effect

Long beans is one of the vegetable plants favored by the wider community, other than that the root nodules of this plant it capable to be a symbiosis with rhizobium bacteria to nitrogen fixationinto the soil so that the existence of nitrogen elements in the soil can be maintained, this is also accompanied by increased weed growth around the long beans so it will be affected the growth and yield of long beans crops.Research aimed to determine effect which caused by the existence of weeds on productivity of long beans (Vigna sinensis L.). Research was conducted on June 2016, North Sangatta Subs-district. The experiment was set up as a non factorial in a complete randomized block design which consists 5 blocks and 5 treatments, (P1) 100% weed existence, (P2) 75% weed existence, (P3) 50% weed existence (P4) 25% weed existenceand (P5) 0% weed existence. The Obtained results were analyzed by analysis of variance. The results showed that there was non significant on plant aged parameters when flowering 80%, plant aged at the time of first harvest and crop production, while the weight of fruit per plant was significantly. The best yielded when plant aged of 80% flowering on treatments of 100% weed existence and 25% weed existence i.e. 36,00 days;plant aged on the fastest harvest resulted ontreatments of 75, 25 and 0% weed existencei.e. respectively on 47and 20 days. Long beans has the the heaviest fruits were produced on the treatment of 0% weed existence i.e. 0,528 kg. While the heaviest production were produced on the treatment of 0%weed existence i.e.4,586 tonsha-1. Weeds that dominate on the planting area of long bean wereCyperus rotundus with the summed dominance ratio (SDR) 32,86%, there is decrease of production as 2,246% from total production if weed control is not done it.

Growth Response Of Pakcoy Mustard (Brassica Rapa L.) Mustard Plant Production With The Hydroponic Model Of The Wick System To Salinity Stress Conditions

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Muhammad Ilham Cahya Mulyadi ◽  
M. Abror
Keyword(s):  
Salinity Stress ◽  
Growth Response ◽  
Block Design ◽  
Stress Conditions ◽  
Plant Production ◽  
Experimental Unit ◽  
Treatment Unit ◽  
Randomized Block Design ◽  
Mustard Plant ◽  
Significant Difference

The current decline in productivity and agricultural output is also a result of high salinity levels. As much as 20% of 50% of irrigated land worldwide is affected by varying levels of salinity. The purpose of this study was to determine the growth response of the wick system of hydroponic pakcoy mustard greens to salinity stress conditions. This research was conducted in Pabean Hamlet, Kejapanan Village, Gempol District, Pasuruan Regency, starting from September to October 2020. The experiment was arranged in a randomized block design (RAK) with 6 treatments consisting of 0, 1000, 1500, 2000, 2500, and 3000 ppm. The treatment was repeated three times, so that 18 experimental units were obtained. Each experimental unit consisted of 12 plants. The data were analyzed using ANOVA at the 5% level followed by the 5% BNJ test. The variables observed were plant height, number of leaves, leaf area, wet weight, consumption weight, and chlorophyll test with a wavelength of 649 and 665. The results showed that there was no significant difference in each treatment unit. From these results it can be concluded that pakcoy mustard plants do not respond to salinity stresses of up to 3000 ppm.

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