scholarly journals BIOLOGICAL NEMATICIDES ASSOCIATED WITH POULTRY LITTER IN THE CONTROL OF NEMATODES IN SOYBEAN AND SECOND CORN CROP

2021 ◽  
Vol 34 (3) ◽  
pp. 580-589
Author(s):  
TAYRLEN EDUARDO AMORIM ROSA ◽  
JEAN CRAMENAK DE SOUZA ◽  
WELLINGTON JOSÉ PEREIRA ◽  
JANAINA ALVES DE ALMEIDA MOREIRA ◽  
FERNANDO GODINHO DE ARAÚJO

ABSTRACT Alternative management measures have been used to reduce nematode population levels in affected areas. In this perspective, the objective was to evaluate the efficiency of nematicides based on fungus and bacterium, associated with poultry litter applied via ground in the management of Pratylenchus brachyurus and Heterodera glycines in soybean and corn crops in succession. The experiment was conducted in the 2018/19 growing season in the municipality of Ipameri– GO (-17°34’55.58”S−48°12’02.35”O) in naturally infested field, arranged in a randomized block design, with 10 treatments and 4 replicates, being: T1- Witness/ control, T2- Poultry litter, T3- P. lilacinum + T. harzianum, T4- B. subtilis + B. licheniformis, T5- P. chlamydosporia, T6- Abamectina, T7- P. lilacinum + T. harzianum + Poultry litter, T8- B. subtilis + B. licheniformis + Poultry litter, T9- P. chlamydosporia + Poultry litter, T10- Abamectina + Poultry litter. The poultry litter was added in the soil 10 days before planting. The plots were composed of 6 lines of 6 m, with a spacing of 0.5 m. In the soybean crop at 45 and 90 days after sowing (DAS), the fresh weight of the roots (MFR), nematological variables and productivity were evaluated. In corn, only nematological variables were evaluated at 60 DAS. The treatments using P. lilacinum + T. harzianum and B. subtillis + B. licheniformes increased the MFR and reduced the number of P. brachyurus and H. glycines at the root. P. chlamydosporia associated with poultry litter increased in productivity in soybean plants.

2021 ◽  
Vol 9 (2) ◽  
pp. 82-89
Author(s):  
Rita Noveriza ◽  
Tri Lestari Mardiningsih ◽  
John Nefri ◽  
Siti Riffiah

Clove oil has the potential to suppress the development of the mosaic virus in patchouli plants, but its effectiveness in the field has not been studied. This study aimed to evaluate the effect of clove nano biopesticide on controlling patchouli mosaic disease. The research was conducted at the Manoko Experimental Garden, Bandung, West Java from March to November 2018. The patchouli used was Patchoulina-2 variety, which originated from the Seed Breeder Garden in Lembang, Bandung.  This study was arranged in a Randomized Block Design (RBD), consisting of five treatments and ten replications within each treatment, with one hundred plants in each replication. The results obtained showed that nano biopesticides of citronella, clove, and commercial citronella (Asimbo) were able to reduce the incidence and intensity of mosaic diseases in patchouli plants, showing the efficacy levels of 14.68%, 9.06%, and 5.83%, respectively. The application of citronella and clove biopesticides on Patchoulina-2 every month could increase plant fresh weight, when compared to the plants without treatment. Patchoulina-2 plants treated with nano biopesticides of clove and commercial citronella (Asimbo) showed higher value of fresh weight compared to those treated with citronella nano biopesticide. The clove nano biopesticide can also be developed to control mosaic diseases in patchouli plants.


2016 ◽  
Vol 10 (1) ◽  
pp. 63-70
Author(s):  
Palupi Puspitorini ◽  
Dyah Pitaloka ◽  
Tri Kurniastuti

This study aims to find out the results of cassava tuber crop UJ5 variety at different harvest ages. Research direction is that cassava varieties have been planted throughout Indonesia as the best producer of cassava varieties. High levels of starch and high HCN content makes this variety was selected by the factory - tapioca factory in Indonesia. Research design used randomized block design with 7 treatments of harvesting (UP) were repeated 3 times. UP6 (harvesting 6 MAP), UP7 (harvesting 7 MAP), UP8 (harvesting 8 MAP), UP9 (harvesting 9 MAP), UP10 (harvesting 10 MAP), UP11 (harvesting 11 MAP), UP12 ( harvesting 12 MAP). The research variables are the fresh weight of tuber, tuber starch content (%), the weight of biomass, harvest index, number of tubers per plant. The results showed that the best harvesting time is UP9 the results did not differ with UP10, UP11 and UP12


2020 ◽  
Vol 18 (1) ◽  
pp. 17
Author(s):  
BUDI SANTOSO ◽  
UNTUNG SETYO-BUDI ◽  
ELDA NURNASARI

<p>ABSTRAK<br />Penelitian mengenai jarak tanam dan pemupukan untuk tanaman<br />rosela merah (Hibiscus sabdariffa var. sabdariffa) belum banyak dilakukan.<br />Suatu penelitian, yang dilakukan di Desa Kanyoran, Kecamatan Semen,<br />Kabupaten Kediri pada tahun 2010, bertujuan untuk mendapatkan jarak<br />tanam dan dosis pupuk NPK majemuk yang tepat bagi pertumbuhan serta<br />produksi kelopak bunga rosela merah dan analisis usaha tani. Perlakuan<br />disusun dalam rancangan acak kelompok faktorial dengan 3 ulangan.<br />Sebagai faktor pertama adalah 3 ukuran jarak tanam yang terdiri atas 1) 80<br />x 50 cm; 2) 100 x 50 cm; dan 3) 120 x 50 cm; dan sebagai faktor kedua<br />adalah 5 dosis pupuk NPK majemuk yang terdiri atas a) 30 kg NPK/ha; b)<br />37,50 kg NPK/ha; c) 45 kg NPK/ha; d) 52,50 kg NPK/ha; dan e) 60 kg<br />NPK/ha. Hasil penelitian menunjukkan bahwa terjadi interaksi antara jarak<br />tanam (100 x 50 cm) dengan dosis pupuk (45 kg NPK/ha) yang<br />memberikan pertumbuhan tinggi tanaman, jumlah cabang produktif,<br />jumlah buah, bobot kelopak bunga berbiji, bobot biji, bobot basah kelopak<br />bunga tanpa biji, dan bobot kelopak bunga kering maksimal, masing-<br />masing sebesar 186,63 cm; 16,33 cabang; 117,00 buah; 41,33 kg/petak;<br />16,17 kg/petak; 26,67 kg/petak; dan 2,35 kg/petak (652,75 kg/ha). Usaha<br />tani rosela merah memberikan keuntungan sebesar Rp 10.420.000/ha<br />dengan B/C = 1,49. Harga pokok kelopak bunga kering sebesar<br />Rp13.031/kg lebih kecil dibanding harga pasar (Rp 40.000/kg), dan dapat<br />dijamin tidak akan terjadi kerugian bagi petani<br />Kata kunci : Hibiscus sabdariffa var. sabdariffa, jarak tanam, pupuk NPK<br />majemuk, pertumbuhan, produksi</p><p>ABSTRACT<br />There has been no research program on plant spacing and fertilization on<br />red roselle plant (Hibiscus sabdariffa var. sabdariffa) up to 2010. A study<br />conducted in Desa Kanyoran, Kecamatan Semen, Kediri in 2010, aimed at<br />getting appropriate plant spacing and NPK compound fertilizer dosage for<br />growth and calyx production of red roselle, as well as its farm analysis.<br />The experiment was arranged in a factorial randomized block design with<br />three replicates. As the first factor were 3 dimensions of plant spacing<br />consisting of 1) 80 x 50, 2) 100 x 50, and 3) 120 x 50 cm, and the second<br />factor were 5 doses of NPK compound fertilizer consisting of a) 30, b)<br />37.50, c) 45, d) 52.50, and e) 60 kg NPK/ha. The results showed that there<br />was an interaction between plant spacing (100 x 50 cm) with fertilizer<br />dosage (45 kg NPK/ha), which resulted in plant height, number of<br />productive branches, number of fruits, weight calyx with seed, seed<br />weight, fresh weight of seedless calyx, and maximum dry weight of calyx,<br />each amounting to 186.63 cm; 16.33 branches; 117.00 fruits; 41.33<br />kg/plot; 16.17 kg/plot; 26.67 kg/plot; and 2.35 kg/plot (652.75 kg/ha),<br />respectively. Red roselle farm provided a gain of Rp10,420,000/ha with a<br />B/C of 1.49. Production cost of dried calyx was Rp13,031/kg, lower than<br />market price (Rp 40,000/kg), and was guaranteed to be no loss to farmers.<br />Key words: Hibiscus sabdariffa var. sabdariffa, plant spacing, NPK<br />compound fertilizer, growth, production</p>


AGRICA ◽  
2019 ◽  
Vol 1 (2) ◽  
pp. 1-8
Author(s):  
Maria Goreti Firma

This study aims to determine the effect of tobacco plant extracts on mortality of armyworm pests (Spodoptera litura F.) and determine the optimum concentration of tobacco leaf extracts on mortality of armyworm caterpillars on mustard plants in the field. The design used in this study was a Randomized Block Design (RBD) consisting of 5 treatments and 4 replications namely T1: 175 ml/L concentration of tobacco leaf extract, T2: 350 ml/L concentration of tobacco leaf extract T3: Concentration of 525 ml/L tobacco leaf extract, T4: Concentration of 700 ml/L tobacco leaf extract, T5: Concentration of 875 ml/L of tobacco leaf extract. The observation variables in this study were pest mortality (%), damage intensity (%), plant fresh weight, and fresh weight per hectare (ton). The results showed that the concentration of tobacco leaf extracts significantly affected the mortality of Spodoptera litura F. At the concentration of T5 treatment (875 ml) were the lowest damage, pest mortality, fresh weight of the mustard plant, and fresh weight per hectare of was 9.75%, 88%, 109.25 gr, and27.31 tons respectively.


2020 ◽  
Vol 50 (9) ◽  
Author(s):  
Alfredo Junior Paiola Albrecht ◽  
Leandro Paiola Albrecht ◽  
André Felipe Moreira Silva ◽  
Romulo Augusto Ramos ◽  
Natália Buttini Corrêa ◽  
...  

ABSTRACT: Conyza spp. is among the main weeds reported worldwide. Due to its aggressiveness, such as high seed production and dispersion, and the growing reports of biotypes resistant to glyphosate, paraquat, and other herbicides, different control practices are required. Thus, this study aimed to evaluate the efficacy of herbicides with sequential application of glufosinate in soybean pre-sowing for control of Conyza spp. with indicative of resistant to paraquat. The study was carried out in the field, at Assis Chateaubriand and Palotina, state of Paraná, Brazil, in the 2018/19 season. The experiments were conducted in a randomized block design with four replications. The treatments consisted in application of glyphosate, 2,4-D, saflufenacil, glufosinate, saflufenacil/imazethapyr, diclosulam, paraquat/diuron, paraquat and imazethapyr/flumioxazin, at different combinations, in soybean pre-sowing. Control of Conyza spp., crop injury to soybean plants and variables related to agronomic performance (plant height and yield) were evaluated. All treatments were selective for soybean, which showed stronger crop injury in the presence of diclosulam herbicide, but this did not compromise soybean agronomic performance. In general, control levels were high for the treatments used. Except for paraquat treatments, in the area with the highest frequency of Conyza spp. with indicative of resistant to paraquat, and imazethapyr/flumioxazin treatment in both areas. These control results emphasized the importance of glufosinate in this management system and showed promising results for saflufenacil/imazethapyr.


Agrivet ◽  
2021 ◽  
Vol 26 (1) ◽  
pp. 17
Author(s):  
Siti Dailah ◽  
Mofit Eko Poerwanto ◽  
Supono Budi Sutoto

The productivity of chili in terms of both quality and quantity is suppressed by the attacks of anthracnose disease caused by Colletotrichum spp. Pesticides is commonly used to control the disease. Researched was conducted to determine the antagonistic fungi and the effective dose in inhibiting the growth of the Colletotrichum spp. Antagonistic tests were performed in vivo using the direct method with three replicates. Inhibition test was arranged in a Complete Randomized Block Design (RCBD) with 7 treatments: Control, Gliocladium sp (150, 250, and 350 mL/plant) and T. harzianum (150, 250, and 350 mL/plant) with four replicates and three samples out of 20 plants per treatment. The results showed that the percentage of inhibition of T. harzianum against Colletotrichum sp. is 55% while Gliocladium sp. is 70.33% in antagonistic test. The mean of disease intensity at 11 up to 32 DAI on control is 5.61 ± 0.71% up to 20.30 ± 1.35 % respectively. It is significantly higher than Gliocladium sp. 350 mL/Plant (1.94 ± 0.45 % up to 11.15 ± 0.87 %), T. harzianum 350 mL/Plant (1.10 ± 0.58 % up to 8.68 ± 0.91 %), and T. harzianum 250 mL/Plant (2.28 ± 0.43 % up to 8.75 ± 0.79 %). No significant different is observed on mean of fresh weight of red chili fruit yield per plant. T. harzianum and Gliocladium sp. fungi are effective in controlling the attack of anthracnose disease in chili. The most efficient dose to control anthracnose disease is the application of T. Harzianum or Gliocladium sp at the dose of 250 mL/plant.Key Words: Chilli, Anthracnose, Gliocladium, Trichoderma, Colletotrichum.


GANEC SWARA ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 544
Author(s):  
ANAK AGUNG GEDE PUTRA ◽  
PANDE GEDE GUNAMANTA ◽  
KETUT TURAINI INDRA WINTEN

The study aimed to determine the effect of organic planting media and the position of seed planting on the growth of Robusta coffee seedlings. The study is conducted at the Tabanan Agrotechnology Study Program, Tabanan University, which conducted from July 2019 to September 2019. The treatments are arranged in factorial in a randomized block design (RBD). Two treatments examined in this study were the doses of organic matter in the growing media (0g, 150 g, 300 g, 450 g) and seed position (prone position, upside down, tilted position). The results show that the interaction between organic planting media (soil + coffee leaf compost) and seed planting position did not significantly affect all coffee seedlings growth variables. The dose of organic compost in the growing media has a very significant effect on all growth variables except when growing and the percentage of growth. The dosing of 450 g organic matter gave the highest root fresh weight, fresh stem weight and fresh leaf weight (1.00 g, 2.97 g and 8.64 g respectively) and oven dry weight for the three variables (respectively 0.39 g, 0.55 g and 1.36 g). Seed planting position has no significant effect on all observed variables, but there is The tendency of planting position with the prone on average gives better growth compared to other positions.


2020 ◽  
Vol 33 (1) ◽  
pp. 81-89
Author(s):  
CLEITON DALASTRA ◽  
MARCELO CARVALHO MINHOTO TEIXEIRA FILHO ◽  
PABLO FORLAN VARGAS

ABSTRACT A balanced periodicity of the nutrient solution flow is essential for better agronomic performances and low production costs in hydroponic systems. Thus, the objective of this work was to evaluate the effect of periodicity of exposure of lettuce plants to the nutrient solution in an NFT hydroponic system on the production, nutrition, and profitability of this crop. The experiment was conducted in a randomized block design with five replications. The treatments consisted of four periodicities of exposure of lettuce plants to the nutrient solution, consisting of intervals of 60, 30, and 15 minutes between pumping periods of 15 minutes; and uninterrupted flow of the nutrient solution. The plants were harvested at 30 days after transplanting, and 15 lettuce plants of each experimental plot were used to determine total fresh weight; root fresh weight; shoot freshweight; and contents of N, P, K, Ca, Mg, S, B, Cu, Fe, Mn, and Zn in shoots, roots, and in the diagnostic leaf; accumulation of these nutrients in shoots and roots; and nitrate and ammonium contents in plant shoot. The highest production and profitability of lettuce were found using uninterrupted nutrient solution flow, which provided higher shoot and root nutrient contents to plants, and resulted in a better nutrient use efficiency.


EUGENIA ◽  
2015 ◽  
Vol 21 (1) ◽  
Author(s):  
J. Rimbing ◽  
J. Pelealu ◽  
D. Sualang

ABSTRACT   The research was arranged in a randomized block design (RBD), with 10 treatments and 3 replications. To get the active insects pests, net sweepings were done for the flying insects, while other pests were observed directly on the plants. Collecting data of plant damages were made by systematic diagonal lines, except for viruses, census was conducted on each experimental plot.  The results of this experiment documented 12 species of insect pests attacking soybean plants. Soybean pest populations were relatively low, except for Aphis glycine that was quite high. In all treatments, plant damage caused by sucking pest Piezodorus sp and Riptortus linearis were relatively low of 1.53 % to 1.94 %; it indicated an insignificant effect to decline the production. Crop damages by virus showed a significant effect. The lowest virus attacks found on compost of 5 tons per ha with 43 plants infected per treatment, the highest virus attack showed on combination of 5 tons compost per ha + inorganic fertilizer + mulch, in which there were 274 infected plants per treatment. Apparently virus attacks gave impact on soybean production. The highest production were documented on treatment of 5 tons compost per ha with production of 0.55 tons per ha, while the lowest production was found on combination of 5 tons compost per ha + inorganic fertilizer + mulch, in which the production was 0.22 tons per ha. Keywords:  fertilizer, mulch, insect pest, production


Revista CERES ◽  
2013 ◽  
Vol 60 (5) ◽  
pp. 621-628 ◽  
Author(s):  
Gederson Luiz Buzzello ◽  
Michelangelo Muzell Trezzi ◽  
José Abramo Marchese ◽  
Elouize Xavier ◽  
Edemir Miotto Junior ◽  
...  

Soybean genotypes grown in sub-tropical climate may exhibit lodging. The plant lodging is influenced by soil type and fertility level, sowing date, latitude and altitude of the location, plant population and conditions of crop development. Plant regulators and herbicides are able to avoid or reduce plant lodging. This study aimed to verify the effects of the growth regulators TIBA and daminozide on vegetative growth and yield of soybean cultivar CD 214 RR. The experiment was carried out at a field in randomized block design with four replications in a factorial scheme. The A factor was represented by the combination of regulators TIBA and daminozide and its concentrations, and the Factor B was seven times of evaluation of injury and plant height or eight times of evaluation of lodging. In the range of doses used, the application of daminozide resulted in greater injury to soybean plants than TIBA. The smaller plant height was achieved by the application of 6 g ha-1 of TIBA and 1200 g ha-¹ of daminozide. Treatments with daminozide (100 g ha-¹) and TIBA (10 g ha-1) stood out due to the reduced lodging of soybean plants. Grain weight increased linearly when the levels of TIBA increased. There was a negative correlation between lodging and grain yield and a positive correlation between plant height and lodging. There was also a negative correlation between injury caused by the application of plant regulators and lodging.


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