scholarly journals Penggunaan Ekstrak Buah Hutung (Barringtonia Asiatika) Untuk Mengendalikan Hama Maruca Testulalis Penggerek Polong Pada Kacang Panjang

Agrologia ◽  
2017 ◽  
Vol 6 (2) ◽  
Author(s):  
Riski Siahaya ◽  
Victor George Siahaya ◽  
Marthin Kalay ◽  
Abraham Talahaturuson
Keyword(s):  
Crop Yields ◽  
Block Design ◽  
Control Plant ◽  
Maruca Testulalis ◽  
Time Interval ◽  
Application Time ◽  
Fruit Extract ◽  
Synthetic Chemicals ◽  
Randomized Block Design ◽  
Plant Pest

The use of synthetic chemicals to control plant pest should to be limited by utilizing natural products so that environmental contamination can be reduced and crop yields are safe to eat. The aim of this research is to get the effective concentration and application time of hutung fruit (Barringtonia asiatika) extract to control Maruca testulalis pod borer on long bean. The experiments design was complety randomized block design with treatments of  5% extract of hutung fruit with interval of time of two days application, 5% extract of nutmeg with time interval of three days application, 10% extract of nutmeg with time interval of two days application, 10% fruit extract hutung with a three-day application time interval. Two control treatments were 0.1% Decis insecticide with a three-day application time interval three replications and without any treatment. The result showed that 10% hutung fruit extract with two days application time interval was the best treatment and could decrease the intensity of Maruca testulalis pest borer attack on long bean up to 39,14%.

scholarly journals PENGGUNAAN INSEKTISIDA BOTANIS UNTUK MENGENDALIKAN HAMA PADA TANAMAN TOMAT

EUGENIA ◽  
2013 ◽  
Vol 19 (2) ◽  
Author(s):  
C. S. Rante ◽  
D. T. Sembel ◽  
E. R.M. Meray ◽  
M. M. Ratulangi ◽  
M. F. Dien ◽  
...  
Keyword(s):  
Block Design ◽  
Control Treatment ◽  
Root Extract ◽  
Botanical Insecticide ◽  
Water Control ◽  
Fruit Extract ◽  
Tomato Plants ◽  
Randomized Block Design ◽  
Plant Pest ◽  
The Village

ABSTRACT   The experiment was conducted in the village of Touure, Tompaso District, Minahasa regency since April to August 2013. Designed studies using randomized block design with 3 treatments, namely fruit extract Bitung (treatment A), tuba root extract (treatment B) and water (control treatment), each treatment was repeated 3 times. Results showed that that the extract of Barringtonia asiatica and Derris elliptica has a botanical insecticide to control the properties of N. tenuis. Applications B. asiatica extract and D. elliptica were not significantly different, but both are significantly different from controls. In addition to N. tenuis found several Plant Pest Organisms (OPT) that attack tomato plants including pest Liriomyza sp., leafhoppers tomatoes., black stem base diseases, leaf spot diseases and viral diseases. Key words : Botanic Insecticide, Tomato pest control ABSTRAK   Penelitian dilaksanakan di Desa Toure, Kecamatan Tompaso, Kabupaten Minahasa sejak bulan April sampai dengan Agustus 2013.  Penelitian dirancang menggunakan Rancangan Acak Kelompok dengan 3 perlakuan yaitu ekstrak buah bitung (perlakuan A), ekstrak akar tuba (perlakuan B) dan air (perlakuan kontrol) yang masing-masing perlakuan diulang sebanyak 3 kali. Hasil penelitian menunjukkan bahwa bahwa ekstrak Barringtonia asiatica dan Derris elliptica memiliki sifat insektisida botanis untuk mengendalikan N. tenuis. Aplikasi ekstrak B. asiatica dan D. elliptica tidak berbeda nyata, namun keduanya berbeda nyata dengan kontrol.  Selain N. tenuis ditemukan juga beberapa Organisme Pengganggu Tanaman (OPT) yang menyerang tanaman tomat diantaranya hama Liriomyza sp., wereng tomat., penyakit pangkal batang hitam, penyakit bercak daun dan penyakit virus. Kata kunci : Insektisida botanis, pengendalian hama tanaman tomat

scholarly journals RESPON PERTUMBUHAN DAN HASIL SELADA (LACTUCA SATIVA L.) TERHADAP INTERVAL WAKTU APLIKASI PEMBERIAN AIR CUCIAN BERAS

2020 ◽  
Vol 1 (1) ◽  
pp. 25-32
Author(s):  
Riana Jumawati ◽  
Maria Paulina
Keyword(s):  
Block Design ◽  
Organic Fertilizer ◽  
Growth And Yield ◽  
Time Interval ◽  
Root Weight ◽  
Application Time ◽  
Water Control ◽  
Randomized Block Design ◽  
Rice Water ◽  
Washing Water

Lettuce is one of the most popular vegetables from various groups, because it does not need special preparation to enjoy it immediately. Its cultivation is relatively easy and does not require special techniques, making lettuce can be grown in polybags or hydroponically. Rice washing water, which is usually not utilized, actually has the potential as liquid organic fertilizer. Besides being practical and environmentally friendly, liquid organic fertilizer can be applied easily. This study aims to determine the effect of the appropriate application time interval for giving rice washing water on the growth and yield of lettuce. This research was conducted in August-October 2020 using polybags containing soil: manure: husk (1: 1: 1). The design used was a single factor completely randomized block design (RAKL). The factor is the application time interval for giving rice washing water with 4 levels, namely: W0 = without giving rice washing water (control), W1 = once every 2 days, W2 = once every 4 days and W3 = once every 6 days with a dose of 50 ml polybag-1. The results showed that the time interval treatment with washing rice water had no significant effect on plant height, number of leaves, diameter, fresh root weight, and total fresh weight of lettuce plants. However, the treatment of giving rice washing water at an interval of 6 days (W3) once showed a better value than without treatment, the time interval for giving rice washing water once every 2 days or 4 days.

scholarly journals Melon fruit yield and quality as a function of doses and times of biostimulant application

2020 ◽  
Vol 9 (7) ◽  
pp. e130973911
Author(s):  
Roberto Cleiton Fernandes de Queiroga ◽  
Zaqueu Lopes da Silva ◽  
Odair Honorato Oliveira de ◽  
Elidayane da Nóbrega Santos ◽  
Higínio Luan Oliveira Silva ◽  
...  
Keyword(s):  
Block Design ◽  
Fruit Production ◽  
Soluble Solids ◽  
Application Time ◽  
Time Of Application ◽  
Yield And Quality ◽  
Randomized Block Design ◽  
Semi Arid Region ◽  
Fruit Mass

The objective of this study was to evaluate the productivity and quality of melon fruits as a function of the dose and time of application of biostimulant in the conditions of the semi-arid region of Paraíba. The experiment was carried out at the Federal University of Campina Grande, campus of Pombal - PB, Brazil, in a randomized block design in a 4 x 5 split plot scheme, with doses of biostimulant (0; 0.5; 1.0; 1, 5 and 2.0 L ha-1) and in the subset of the biostimulant application times (15; 20; 25 and 30 days before harvest - DAC), in four replications. Characteristics related to fruit production and quality were evaluated. There was no interaction between the factors of dose and application time of the biostimulant in any of the evaluated characteristics. Thus, the highest estimated values of number of fruits per plant, fruit mass and total melon production were obtained with the application of doses ranging from 0.9 to 1.5 L ha-1 and at the time of application it varied from 22,5 to 23.6 DAC. The content of soluble solids increased 5.5% when the biostimulant dose of 2.0 L ha-1 was used and 4.4% when the product was applied 15 days before harvest.

scholarly journals Kemampuan Bacillus subtilis dan Lysinibacillus sp. dalam Silika Nano dan Serat Karbon untuk Menginduksi Ketahanan Bawang Merah terhadap Penyakit Bercak Ungu (Alternaria porri (Ell.) Cif)

Agrikultura ◽  
2019 ◽  
Vol 30 (1) ◽  
pp. 8
Author(s):  
Hersanti Hersanti ◽  
Sudarjat Sudarjat ◽  
Andina Damayanti
Keyword(s):  
Bacillus Subtilis ◽  
Carbon Fiber ◽  
Block Design ◽  
Antagonistic Bacteria ◽  
Nano Silica ◽  
Green House ◽  
Randomized Block Design ◽  
Plant Pest ◽  
Alternaria Porri ◽  
Induce Resistance

ABSTRACTThe ability of Bacillus subtilis and Lysinibacillus sp. singly or mixed, with carbon fiber and nano silica to induce resistance of shallot to purple blotchPurple blotch disease caused by Alternaria porri is one of the major disease on shallot. One of the methods that can be applied to control the disease is the use of antagonistic bacteria. Antagonistic bacteria can be used as a resistance inducer to suppress pathogen development. In this study, Bacillus subtilis and Lysinibacillus sp. were formulated in carbon fiber as a carrier and nano silica 3% as a complementary. This study was conducted to determine the ability of Bacillus subtilis and Lysinibacillus sp. singly or mixed, with carbon fiber and nano silica to induce resistance of shallot to purple blotch. The experiment was conducted at the Laboratory of Phytopathology, Departement of Plant Pest and Diseases and Ciparanje Green House, Faculty of Agriculture, Universitas Padjadjaran from December 2017 until July 2018. Suspension of Bacillus subtilis and Lysinibacillus sp. singly or mixed were formulated in carbon fiber 80 Mesh and 3% nano silica. The experiment used Randomized Block Design consisted of 8 treatments with 3 replications. Each replication consisted of 5 plants. The results showed that the mixture of Bacillus subtilis and Lysinibacillus sp. in 3% silica nano and carbon fiber was the ablest treatment to increase the resistance of shallot to purple blotch by 71,2%.Keywords: Antagonistic bacteria, BiocontrolABSTRAKPenyakit bercak ungu yang disebabkan oleh Alternaria porri merupakan salah satu penyakit utama pada bawang merah. Salah satu metode yang dapat digunakan untuk pengendalian yaitu menggunakan bakteri antagonis. Bakteri antagonis dapat digunakan sebagai penginduksi ketahanantanaman untuk menekan perkembangan penyakit. Pada penelitian ini, Bacillus subtilis dan Lysinibacillus sp. diformulasikan dalam serat karbon sebagai bahan pembawa dan silika nano 3% sebagai bahan pelengkap. Percobaan ini dilakukan untuk mengetahui kemampuan bakteri Bacillus subtilis dan Lysinibacillus sp. secara tunggal maupun campuran dalam serat karbon dan silika nano3% untuk menginduksi ketahanan bawang merah terhadap penyakit bercak ungu. Percobaan ini dilaksanakan di Laboratorium Fitopatologi, Departemen Hama dan Penyakit Tumbuhan dan Rumah Kaca, Ciparanje, Fakultas Pertanian, Universitas Padjadjaran mulai dari bulan Desember 2017 hingga Juli 2018. Suspensi Bacillus subtilis dan Lysinibacillus sp. secara tunggal maupun campuran diformulasikan pada serat karbon dan silika nano 3%. Percobaan menggunakan rancangan acak kelompok yang terdiri dari 8 perlakuan dengan 3 ulangan. Setiap ulangan terdiri dari 5 tanaman. Dari hasil percobaan diketahui bahwa campuran B. subtilis dan Lysinibacillus sp. dalam silika nano 3% serta serat karbon mampu meningkatkan ketahanan bawang merah terhadap penyakit bercak ungu dengan persentase hambatan sebesar 71,2%.Kata Kunci: Bakteri antagonis, Biokontrol

Optimizing the Application Time of Pre-emergence Herbicide Pendimethalin and Oxyfluorfen Application for Effective Weed Management in Irrigated Blackgram (Vigna mungo L.) and Its Residue Persistence

2021 ◽  
Author(s):  
S. Selvakumar ◽  
R. Ajaykumar ◽  
A. Ammaiyappan
Keyword(s):  
Field Experiment ◽  
Weed Control ◽  
Weed Management ◽  
Block Design ◽  
Vigna Mungo ◽  
Application Time ◽  
Herbicide Application ◽  
Control Efficiency ◽  
Randomized Block Design ◽  
Weed Control Efficiency

Background: Time of pre-emergence herbicide application is an important factor that decides the efficiency of herbicide. If the pre-emergence herbicide is not applied at appropriate time, it may cause ineffective weed control or toxicity to crops. With this background, a field experiment was conducted at TNAU, Madurai to optimize the time of pre-emergence herbicides namely pendimethalin and oxyfluorfen application for effective weed management in irrigated blackgram. Methods: The experiment was laid out in randomized block design with three replication. Treatments were application of pendimethalin at 0.75 kg ha-1 and oxyfluorfen at 0.2 kg ha-1 on 1, 2, 3, 4 days after sowing, weed free check and unweeded check. Result: Results of the study revealed that oxyfluorfen gave maximum weed control efficiency as compared to pendimethalin, but toxicity to the crop was observed when oxyfluorfen was sprayed after 2 days of sowing. Yield and economics were achieved higher with application of 0.75 kg ha-1 of pendimethalin at 2 DAS, which was on par with application of 0.2 kg ha-1 of oxyfluorfen at 1 DAS due to lesser toxicity. Application of 0.75 kg ha-1 of pendimethalin and 0.2 kg ha-1 of oxyfluorfen didn’t leave any herbicide residue after harvest. Hence, application of 0.75 kg ha-1 of pendimethalin at 2 DAS and 0.2 kg ha-1 of oxyfluorfen at 1 DAS can be recommended for effective weed management in irrigated balckgram.

scholarly journals Effect of starter sources and old fermentation on making nata de whey towards chemical quality

2020 ◽  
Vol 142 ◽  
pp. 04001
Author(s):  
Asmaul Khusna ◽  
Anis Prastujati ◽  
Shinta Setiadevi ◽  
Mustofa Hilmi
Keyword(s):  
Reducing Sugars ◽  
Block Design ◽  
Reducing Sugar ◽  
Cellulose Content ◽  
Chemical Quality ◽  
Fruit Extract ◽  
Fermentation Time ◽  
Randomized Block Design ◽  
Pineapple Fruit ◽  
The Difference

Whey cheese is a by-product of traditional or modern cheese-making processes. The yield of each cheesemaking reaches around 83% of the volume of milk used.whey can be processed into nata de whey by adding Acetobacterxylinum. The purpose of this study were to determine the effect of fermentation duration and differences in starter sources on the chemical quality produced by nata de whey. All samples were analyzed for fat, protein, cellulose and reducing sugars. this use study of two factorial randomized block design. The first factor is the difference in the starter (commercial and pineapple fruit extract) and the second factor is the length of fermentation with three replications. The results showed that the effect of fermentation time and the difference in starter sources on nata de whey had a very significant impact (P <0.01) on the calculation of fat content in the nata the whey. The duration of fermentation and differences in the source of the stater on nata de whey had no significant effect (P> 0.05) on the content of protein, reducing sugar and cellulose content produced.

Effect of phosphorus and sulphur application on their dynamics and nodulation in soil under black gram [Vigna mungo (L.) Hepper] crop

2019 ◽  
Author(s):  
Mamta Phogat ◽  
A.P. Rai ◽  
Sunil Kumar ◽  
Padma Angmo
Keyword(s):  
Organic Phosphorus ◽  
Block Design ◽  
Interval Number ◽  
Time Interval ◽  
Black Gram ◽  
Time Intervals ◽  
Combined Application ◽  
Organic Sulphur ◽  
Randomized Block Design ◽  
Four Levels

The experiment comprising of four levels of phosphorus, i.e., 0, 20, 40 and 60 kg ha-1 and three levels of sulphur, i.e., 0, 15 and 30 kg ha-1, was conducted during summer of 2015-16 to investigate the effect of phosphorus and sulphur application on their dynamics in soil under the crop of black gram cv. Uttara. The treatments were laid out in randomized block design (factorial) and replicated three times. The results reveal that the available and organic phosphorus (kg ha-1) significantly increased with each successive application of phosphorus in soil up to highest level (60 kg ha-1) at 20 days after sowing (DAS) of black gram, while it showed decreasing trend with time intervals of 40 DAS and at maturity of black gram. The application of successive doses of sulphur had no significant effect on available and organic phosphorus at each time interval. Similarly, significant increase has also been recorded in available and organic sulphur (kg ha-1) in soil with each successive application of sulphur up to 30 kg ha-1 at 20 DAS of black gram, thereafter, it showed decreasing trend. The application of successive doses of phosphorus had no significant effect on available and organic sulphur at each time interval. Number of nodules plant-1 also increased significantly with increasing levels of phosphorus and sulphur up to highest level and the optimum values were recorded with combined application of phosphorus 60 kg ha-1 and sulphur 30 kg ha-1.

scholarly journals Organic cultivation of okra with ground cover of perennial herbaceous legumes

2013 ◽  
Vol 31 (3) ◽  
pp. 450-456 ◽  
Author(s):  
Diego Mathias N da Silva ◽  
Fábio Luiz Oliveira ◽  
Paulo Henrique Grazziotti ◽  
Claudenir Fávero ◽  
Mateus Augusto L Quaresma
Keyword(s):  
Dry Matter ◽  
Crop Yields ◽  
Block Design ◽  
Ground Cover ◽  
Bare Soil ◽  
Vegetable Production ◽  
Dry Matter Accumulation ◽  
Herbaceous Legumes ◽  
Organic Cultivation ◽  
Randomized Block Design

The management of green manure with perennial herbaceous legumes has emerged as an interesting practice for vegetable production, improving the cultivation environment and increasing crop yields. In the present study we evaluated the organic okra cultivation in soil covered with perennial herbaceous legumes. The treatments consisted of okra grown in bare soil (control) or covered with tropical kudzo (Pueraria phaseoloides), perennial soybean (Glycine wightii), calopogonium (Calopogonium muconoides), Pinto peanut (Arachis pintoi) and Stylosanthes capitata and Stylosanthes macrocephala. A randomized block design with four replications was used. The weeding of legumes was realized before the okra was sown and this allowed the addition of quantities of dry matter, highlighting the potential of tropical kudzo (3.74 t ha-1), perennial soybean (1.55 t ha-1) and peanut (1.30 t ha-1). Okra cropped in soil covered with tropical kudzo and perennial soybean had the weed lowest dry matter accumulation until 150 days after sowing the okra. At 150 days after sowing the okra, only the areas covered with peanut and calopogonium had higher volumes of water in the soil compared to the control. Throughout the harvest, the okra plants grown in soil covered with perennial soybean and tropical kudzo showed the greatest heights. The maximum okra fruit yield (16.23 t ha-1) was obtained by growing okra in soil covered with perennial soybean.

scholarly journals Pengelolaan Air dan Mulsa pada Tanaman Bawang Merah di Lahan Kering (Water Management and Mulch on Shalot in Dry Land)

2020 ◽  
Vol 29 (2) ◽  
pp. 159
Author(s):  
Zainal Arifin ◽  
Moh. Saeri
Keyword(s):  
Water Management ◽  
Block Design ◽  
Production Costs ◽  
Time Interval ◽  
Plastic Mulch ◽  
Dry Land ◽  
Straw Mulch ◽  
Irrigation Interval ◽  
Randomized Block Design ◽  
Factor Ii

<p>Budidaya bawang merah di lahan kering mempunyai ketersediaan air terbatas sehingga diperlukan pengelolaan air secara efisien. Penelitian ini bertujuan untuk memperoleh interval waktu pemberian air yang efisien dan jenis mulsa yang dapat meningkatkan produksi dan pendapatan usahatani bawang merah. Penelitian pengelolaan air dengan interval pengairan dan mulsa pada bawang merah varietas Monjung dilaksanakan pada MK II 2016 dalam luasan 2.500 m2 (ukuran petak 15 m x 6 m) di Desa Bunbarat, Kecamatan Rubaru, Kabupaten Sumenep, disusun secara acak kelompok faktorial dengan sembilan perlakuan dan tiga ulangan, yaitu: faktor I (mulsa): (a) mulsa plastik, (b) mulsa jerami, dan (c) tanpa mulsa, sedangkan faktor II (pengairan): (a) 1 hari sekali, (b) 2 hari sekali, dan (c) 3 hari sekali. Hasil penelitian menunjukkan bahwa perlakuan mulsa jerami disertai pengairan 2 hari sekali memberikan bobot umbi 7,89 ton/ha dan penggunaan air selama pertumbuhan tanaman sebesar 1.230 m3/ha sehingga untuk menghasilkan 1 kg umbi dibutuhkan 156 liter air. Berdasarkan hasil analisis usahatani bawang merah yang diberi mulsa jerami disertai pengairan 2 hari sekali dapat meningkatkan efisiensi penggunaan air dan biaya produksi serta mempunyai B/C ratio tertinggi (2,27) sehingga layak secara ekonomi.</p><p><strong>Keywords</strong></p><p>Pengelolaan air; Bawang merah; Mulsa; Lahan kering</p><p><strong>Abstract</strong></p><p>Shallot cultivation in dry land has limited water availability so needed to efficient water management. This study aims to obtain an efficient water time interval and mulch type that can increase production and farming income of shallot. Research on water management with irrigation interval and mulch on shallot of Monjung variety was implemented at dry season year 2016 in the area of 2,500 m2 (the size of plot 15 m long to 6 m width) at Bunbarat Village, Rubaru Subdistrict, Sumenep Regency were arranged of randomized block design by factorial with nine treatments and three replications : I (mulch): (a) plastic mulch, (b) straw mulch, and (c) without mulch, while factor II (irrigation): (a) irrigation every 1 day, (b) irrigation every 2 days, and (c) irrigation every 3 days. The results showed that straw mulch treatment with irrigation every 2 days gave a tuber weight of 7.89 ton/ha and the use of water during plant growth was 1,230 m3/ha so that to produce 1 kg of tubers required 156 liters of water. The analysis of shallot farming that is given mulch straw accompanied by irrigation every 2 days can increase the efficiency of water use and production costs and has the highest B/C ratio (2.27) so that it is economically feasible.</p>

scholarly journals Respons Pertumbuhan Vegetatif Jagung Di Tailing Tambang Timah Terkontaminasi Kadmium Setelah Inokulasi Bakteri Indogenus

Agrologia ◽  
2015 ◽  
Vol 4 (1) ◽  
Author(s):  
Reginawanti Hindersah ◽  
James Matheus
Keyword(s):  
Crop Yields ◽  
Block Design ◽  
Dry Weight ◽  
Cd Uptake ◽  
Bacterial Proliferation ◽  
Maize Seeds ◽  
Randomized Block Design ◽  
Set Up ◽  
Number Of Bacteria ◽  
Soil Cd

Contaminant levels of cadmium (Cd) in tin mine tailings often exceeds the upper limit.  Relatively high Cd content might  decrease crop yields and threatened food chain. Bioremediation by using  indigenous microbes to lower soil Cd shoud be done prior to use tailings for cultivation. The objective of this experiment was to obtain information about the capacity of  indigenous bacterias to induce bacterial proliferation  in the rhizosphere, corn growth during the early vegetative stage and change the concentration of Cd in soil and plants. Pot experiment was set up in  a Randomized Block Design consist of several combination of  two bacterial isolates and their doses.  Maize seeds were sown in  tailings from the mine site on the island of Bangka and inoculated with indigenous bacteria. The results showed that the bacterial inoculation increased number of bacteria in the rhizosphere  and plant height, but only isolates BKH1 with a dose of 5 mL/plants that increased plant dry weight. Soil Cd content decreased when inoculated by bacteria although not statistically significant, while the effect of inoculation on plant Cd uptake was inconsistent.

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