scholarly journals Effectiveness of land cultivation to control pests and diseases and increasing yield of shallots

2021 ◽  
Vol 306 ◽  
pp. 01023
Author(s):  
Ni Made Delly Resiani ◽  
I Wayan Sunanjaya ◽  
I Made Rai Yasa

Pests and diseases are one of the obstacles in increasing production and productivity of shallots. The study was conducted in Subak Rejasa Klod, Rejasa Village, Penebel District, Tabanan Regency - Bali Province. Research was conducted in June-November 2019, using a split plot randomized block design. The main plot is shallot varieties (V) and the subplot of the technical culture innovation (P). The main plot (V) consists of 2 treatment shallots namely Bali Karet (V1) and Lokal Tabanan (V2) and the plot consisting of 3 treatment of technical culture namely existing (P1); improvement (P2); and introduction (P3). Data on growth components and crop yields are analyzed using diversity analysis and continued with the DMRT test. Analysis of farming businesses was analyzed using B/C ratio and MBCR analysis. The results showed that Spodopthera exigua and Altenaria porri at V1 are lower than V2. The highest dry weight per hectare was obtained in the Bali Karet (V1) of 20,89 tons/ha. Introduction technology (P3) is the best innovation of dry weight-weight producing per hectare on irrigation land.. The value of B/C ratio and MBCR is 1.73 and 3.06 for introduction technology. It was concluded that introduction technology was effective as innovation of pest controllers and main diseases and were able to improve the yield of the Bali Karet variety on irrigation land.

2018 ◽  
Vol 45 (3) ◽  
pp. 249
Author(s):  
Solikin ,

Dioscorea is potentially used as staple food to support food security. The research was aimed to determine the effect of stake length and time of  stem twining  on  the growth of Dioscorea sansibarensis Pax. The experiment was conducted  in  Purwodadi Botanic Garden from December 2014 until May 2015 using split plot randomized block design consisted of two factors, i.e. the stake length and time of stem twining. The stake length was the main plot consisted of 150 cm, 100 cm and 50 cm above soil surface and without stake (control). The time of stem twining as subplots, i.e. stem twined early, twined at the time of 4 leaves stage, and twined at 8 leaves stage. Each combination of the treatments was replicated three times. The results showed that there was significant effect on the stake length  and the time of stem twining treatments on the plant growth and yield. The stake  length of 150 cm treatment produced the highest fresh tuber and total plant dry weight, i.e., 257.24 g and 132.77 g per plant, respectively. On the contrary, the plant without stake produced the lowest fresh tuber and  total dry weight of plant, i.e., 112.10 g and 48.65 g per plant, respectively.<br /><br />Keywords: biomass,leaf area, photosyntesis, tuber weight


Agrologia ◽  
2015 ◽  
Vol 4 (1) ◽  
Author(s):  
Reginawanti Hindersah ◽  
James Matheus

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.


2021 ◽  
Vol 8 (2) ◽  
pp. 437-449
Author(s):  
Gertruda Lovitna ◽  
Yulia Nuraini ◽  
Nurul Istiqomah

Fulfilment of nutrients for plants can be maximized when fertilization, but the application of inorganic fertilizers can cause damage to the soil if the dosage is excessive. The utilization of phosphate solubilizing bacteria is an effort to increase the efficiency of phosphate fertilization that can extract phosphate from an insoluble form that becomes available. This study aimed to obtain a combination of inorganic fertilization doses (SP-36 and NPK) and the application of biological fertilizers that utilize phosphate solubilizing bacteria (PSB) to increase the population of phosphate solubilizing bacteria and P-available in the soil, as well as corn crop yields. This study used a randomized block design with nine treatments and three replications. The result showed that the application of PSB and inorganic phosphate fertilizer shows a significant effect on the population of PSB, P-available, plant height, stover dry weight, cob weight with husk and cob weight without husk, but didn’t show a significant effect on 100 seeds weight and number of plant leaves. Based on the correlation analysis, the results show a positive correlation between soil chemical properties, P-available, and corn yield.


2019 ◽  
Vol 4 (1) ◽  
pp. 64
Author(s):  
Kartika Sari ◽  
Mardiana Wahyuni ◽  
Hardy Wijaya

Nursery success is one of the important things in the oil palm plantation business. Nurseries are the beginning of efforts to cultivate palm plants, so the nurseries must consider all the conditions that can affect the development of the growth of oil palm plants. One important requirement is to conduct nurseries that tend to be organic, which are environmentally friendly. The use of organic fertilizers and sustainable biological fertilizers is very important in increasing soil fertility, growth and crop yields. Organic fertilizer that used is sugar mill wasted blotong and biological fertilizer is mychorrhizal. To determine the effect of giving sugar mill waste blotong and mycorrhizal applications on P nutrient levels in the Main Nursery. This study uses factorial randomized block design method (RAK). First factor is blotong (B): B0= control, B1= 500 gr blotong/seed, B2= 100 gr blotong/seed. Second factor is Mycorrhizal (M): M0= control, M1= 10 gr mycorrhizal arbusculae/seed, M2= 20 gr mycorrhizal arbusculae/seed. 9 treatment combinations were obtained with 4 replications, so the total treatment was 36. Blotong compost application significantly affected palm seed height, canopy dry weight and root dry weight, while mycorrhizal application only significantly affected seed height. the combination between them two gives the best effect on B1M1 treatment.


2019 ◽  
Vol 7 (2) ◽  
pp. 58
Author(s):  
Engelbertus Huvat ◽  
Akhmad Sopian ◽  
Tutik Nugrahini ◽  
Zainudin Zainudin

The factors that influence rubber production are planted clones, plant care and tapping techniques. With the right tapping technique, both tapping time, tapping method and mature tapping age, the production potential of a superior clone of rubber plants that has been well maintained can be maintained. The technique of rubber tapping is closely related to the expected level of production, even very determining the age of the tree economy. The research objective was to determine the effect of stimulant better and tapping time on latex production. The method used was a randomized block design with two-factor split plot design. The first factor (main plot) is the time of tapping consists of 3 levels, namely; w1: 05 in the morning, w2: 06 in the morning, w3: 07 in the morning. The second factor (sub-plot), namely the stimulant dosage better consists of 4 levels, namely; b0: control, b1; 0.5 g, b2; : 1 g, b3; 1.5 g. The results showed that stimulate better treatment had a significant effect on latex volume, wet weight and latex dry weight, but was not significant for latex dryness levels. Tapping time was not significant for latex yield, latex volume, wet weight, latex dry weight and highest dry rubber content at 7am. Stimulant Better treatment has a significant effect on latex volume, wet weight, and latex dry weight, but if given at high doses it will reduce the dry content of rubber. The interaction of treatment when tapping and stimulant is better not significant for latex production. The stimulant application better does not exceed the dose of 0.5 g / principal. Doses> 0.5 g / staple will have an impact on the dry tapping field.


2021 ◽  
Vol 37 (1) ◽  
pp. 37-46
Author(s):  
Nora Katrin ◽  
Nurbaiti ◽  
Murniati

This research aims to find out the interaction effect of gibberellin and potassium fertilizer doses, to examine the effect potassium fertilizer doses on various gibberellin concentrations, gibberellin concentrations on various potassium fertilizer doses, and to find the main effect of gibberellin and potassium fertilizer which is better for growth and the production of shallot plant. The research was conducted at the UPT of the Faculty of Agriculture, Riau University, Pekanbaru, starting from December 2018 to February 2019. The method was experimentally arranged using the completely randomized block design. The main plot was the gibberellin concentrations (0, 100, 200 and 300) ppm. The sub plot was the dose of potassium fertilizer (100 and 200) kg of KCl ha-1. The parameter observed were plant height, total of leaves, diameter of bulbs, total bulbs per clump, fresh weight of bulbs per clump/plot, and dry weight of bulbs. The data were analyzed statistically with anova and Duncan test continued level of 5%. There was interaction effect of gibberellin and potassium fertilizer increased the fresh weight of bulbs. The treatment 100 kg of KCl ha-1 and 200 ppm of gibberellin increased the fresh weight and dry weight of bulbs. The treatment 200 kg of KCl ha-1 and 200 ppm of gibberellin was better to increase the total of leaves and diameter of bulbs. The treatment of gibberellin 200 ppm was better to increase the fresh weight and dry weight of bulbs. The treatment of 200 of KCl ha-1 increased the plant height and total of leaves.


2021 ◽  
Vol 9 (3) ◽  
pp. 291
Author(s):  
Ariel Santivañez Aguilar ◽  
Henrique Vasque ◽  
Estefânia Martins Bardiviesso ◽  
Andres Felipe Gaona Acevedo ◽  
Ricardo Adriano Felito ◽  
...  

Sulfur (S) is usually the second most accumulated nutrient in seeds of Cruciferae plant species such as the radish. Tropical soils have low S availability creating a challenge to manage plant nutrition and balanced plant development to produce high-quality seeds. This study evaluated the influence of S doses and organic compost fertilization on the content and accumulation of macronutrients in radish seeds. Eight treatments were studied in subdivided plots, where the presence (50 t ha-1) or absence of organic compost was placed in the main plot, and the S doses (0, 60, 120, 180 kg ha-1 of S) were placed in the subplots. A randomized block design with six replications was used. Seed dry weight, N, P, K, Ca, Mg, and S concentration (g kg-1 of dry matter), and the accumulation of nutrients in seeds (g plant-1) were evaluated. There was no significant effect of S doses, or organic compost, on the contents of macronutrients in radish seeds. When organic compost was not applied, great doses of S generated great dry weight and accumulation of macronutrients in the radish seeds. However, the application of organic compost increased the dry weight and the accumulation of all macronutrients in radish seeds in low S doses (up to 66 kg ha-1). Also, the presence of organic compost increased the dry weight and the concentration of macronutrients in radish seeds. The decreasing order of macronutrient content and accumulation by the radish seeds was: N > S > K > P > Ca > Mg.


2020 ◽  
Vol 11 (3) ◽  
pp. 163-169
Author(s):  
Rummi Azahra Gumilar ◽  
Nurheni Wijayanto ◽  
Arum Sekar Wulandari

Allelopathy interaction can occur between A. excelsa or M. azedarach with soybean plants which is planted as intercrops in agroforestry system. The objectives of this study were to analyze the effect of root, leaf, and twig ectracts of A. excelsa and M. azedarach on growth and production of soybean. This study was conducted in open fields using a split-split plot design inside randomized block design. The main plot was the plant species as extract materials consisted of Azadirachta excelsa and Melia Azedarach. The subplot was the part of the plant consisted of root, leaf, and twig. Sub-subplot was the concentration of the extract consisted of four levels, 0% (control), 1.25%, 2.5%, and 5%. Each treatment was repeated for 3 time. Result of this study showed that the root, leaf and twig extracts of A. excelsa and M. azedarach did not give significant effect to the height growth, dry weight, as well as soybean production. Key words: agroforestry, allelopathy, growth, production


2021 ◽  
Vol 9 (2) ◽  
pp. 110
Author(s):  
Lia Amalia ◽  
Nunung Sondari ◽  
Nana Supriatna ◽  
Reni Nurhayatini ◽  
Agus Surya Mulya ◽  
...  

Peanut production has decreased, among others, due to cultivation techniques, varieties, diseases and increasingly narrow planting areas. One of the cultivation techniques to increase crop yields is the use of liquid organic fertilizer (POC) and spacing. The research method used was Randomized Block Design, factorial pattern. Consisting of two treatment factors, namely POC concentration (0, 5, 10, and 15 ml L-1 water) and spacing (30 cm x 10 cm, 30 cm x 15 cm and 30 cm x 20 cm), repeated three times. .. The results showed that: (1) there was an interaction between POC treatment and plant spacing on the number of pithy seeds and dry seed weight per plot. Independently, liquid organic fertilizer and plant spacing had an effect on plant height, number of leaves, dry weight of stover, number of filled pods, number of empty pods, percentage of filled pods and weight of 100 seeds, and (2) At a spacing of 30 cm x 15 cm, The optimum POC concentration was 13.24 ml L-1 of water, with a maximum dry seed weight of 1.436 kg plot-1 or equivalent to 2.66 tons ha-1. 


Author(s):  
Rusdi , ◽  
Muh. Asaad

<p>Produktivitas tanaman selain ditentukan oleh faktor lingkungan tumbuh juga dipengaruhi kemampuan varietas untuk beradaptasi pada lingkungan tumbuhnya. Penggunaan varietas beragam pada lingkungan tumbuh yang sama akan memberikan gambaran kemampuan adaptasi varietas. Pengkajian ini bertujuan mengetahui daya adaptasi empat varietas bawang merah serta analisis usahatani paket teknologi budidaya bawang merah pada kondisi spesifik lokasi di Sulawesi Tenggara. Pengkajian dilaksanakan di Desa Andowengga, Kecamatan Poli Polia, Kabupaten Kolaka Timur, dari bulan Agustus sampai dengan Desember 2015. Rancangan yang digunakan yaitu Rancangan Acak Kelompok (RAK) dengan empat varietas bawang merah, yakni Bima Brebes, Katumi, Pikatan dan Mentes, melibatkan lima petani kooperator sebagai ulangan. Hasil pengkajian menunjukkan bahwa jarak tanam 20 x 15 cm2 , aplikasi dolomit 1,5 t/ha, pemupukan (kotoran sapi 15 t/ha + urea 150 kg/ha + SP-36 200 kg/ha + NPK (15:15:15) 250 kg/ha) dan pengendalian hama dan penyakit dengan sistem PHT menggunakan biopestisida Trichoderma spp. 25 kg/ha memberikan produktivitas bawang merah sebesar 10,27 t/ha, berat umbi basah 959,88 g/rumpun, diameter umbi 244 Jurnal Pengkajian dan Pengembangan Teknologi Pertanian, Vol. 19, No.3, November 2016: 243-252 3,04 cm, jumlah umbi per rumpun 10,39 umbi, berat kering umbi per rumpun 826,57 g. Keuntungan yang diperoleh dari penerapan paket teknologi budidaya spesifik lokasi senilai Rp30.752.000. Varietas Bima Brebes memiliki daya adaptasi dan potensi yang relatif lebih baik dibandingkan tiga varietas lainnya dengan B/C 1,35 atau memiliki tingkat efisiensi biaya yang tinggi sebesar 28,17%. Varietas tersebut layak dikembangkan secara luas untuk meningkatkan pendapatan petani.</p><p><strong>ABSTRACT</strong></p><p><strong></strong><br />The Adaptation of Four Shallot Varieties in East Kolaka District, Southeast Sulawesi. The plant's yield is not only determined by environmental factors but also by adaptability of plant varieties. The use of plant varieties in the same environmental condition will provide important information on adaptability of varieties.<br />The purpose of the assessment was to determine the adaptability of four shallot varieties in local specific area in Southeast Sulawesi. The activity was conducted at Andowengga village, Poli Polia sub district, East Kolaka district,from August to December 2015. A randomized block design (RBD) was used to assess four treatments of shallot varieties namely Bima Brebes, Katumi, Mentes and Pikatan involving five farmers as replications. The result of the assessment showed that the row spacing of 20 x 15 cm2 , dolomite application of 1.5 t/ha, fertilizers (manure 15 t/ha + urea 150 kg/ha + SP-36 200 kg/ha + NPK (15 5:15) 250 kg/ha) and pests and diseases control with IPM system and application of biofesticides Trichoderma spp. with doses 25 kg/ha produced yield by 10.27 t/ha, fresh tuber weight each groves by 959.88 g, tuber diameter by 3.04 cm, the number of tubers each groves by 10.39 tubers and tuber dry weight each groves by of 826.57 g. The revenue derived from the application of the technology package was IDR 30,752 million. Bima Brebes indicated to have high adaptability in the local specific area. It had a higher  daptability<br />and potency than the other varieties with B/C up to 1.35 nor having high cost efficiency by 28,17%. This variety and the technology package were feasible to be widely developed to increase farmers’ income.<br /><br /></p>


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