scholarly journals Effect of irrigation frequency and fungicide spray on yield and disease infection of onion

1970 ◽  
Vol 34 (3) ◽  
pp. 417-424
Author(s):  
SK Biswas ◽  
MA Razzaque Akanda ◽  
M Rafi Uddin ◽  
PK Sarker
Keyword(s):  
Disease Severity ◽  
Water Use ◽  
Agricultural Research ◽  
Disease Incidence ◽  
Research Station ◽  
Irrigation Frequency ◽  
Yield Attributes ◽  
Irrigation Water Use ◽  
Use Efficiency ◽  
Bulb Yield

A two-year field experiment was conducted at Regional Agricultural Research Station, Jessore during the rabi seasons of 2002-2003 and 2003-2004 to find out the level of disease incidence under different levels of irrigation and fungicide spray on the bulb yield of onion. Four irrigation levels: no irrigation (I1), irrigation at 10 days interval (I2), 20 days interval (I3), and 30 days interval (14) with 4 spray schedules: no spray (F1), one spray at 40 days after transplanting (DAT) (F2), two sprays each at 40 and 55 DAT (F3) and three sprays each at 40, 55, and 70 DAT (F4) were used. Yield and yield attributes varied significantly (p = 0.05) between sprayed and unsprayed, and irrigated and non-irrigated treatments, respectively. Higher yields were obtained with the higher frequencies of irrigation and spray. Application of fungicide reduced the disease severity significantly, while irrigation had no significant effect on disease infection. But there was a decreasing trend of the disease severity with increasing irrigation frequency. The highest bulb yield of onion (12.45 t/ha) was obtained with a total water use of 245 mm in six applications including an effective rainfall of 16 mm and three sprays. The disease severity between sprayed and unsprayed plots ranged from 1.33 to 3.16 for I1, 1.08 to 2.33 for I2 1.16 to 2.83 for I3, and 1.16 to 3.00 for I4, respectively. Key Words: Onion, disease incidence, irrigation, water use efficiency. DOI: 10.3329/bjar.v34i3.3967 Bangladesh J. Agril. Res. 34(3) : 417-424, September 2009

scholarly journals Irrigation, a Basic Technological Element, for Improving the Autumn Cabbage Yield in Crișurilor Plain, Western Romania

2017 ◽  
Vol 45 (2) ◽  
pp. 582-588
Author(s):  
Cristian G. DOMUŢA ◽  
Ana C. PEREȘ ◽  
Radu P. BREJEA ◽  
Ioana M. BORZA ◽  
Eugen JUDE ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Water Consumption ◽  
Agricultural Research ◽  
Average Rate ◽  
Climate Index ◽  
Irrigation Water Use ◽  
Variation Range ◽  
Yield Gain ◽  
Use Efficiency

The researches were carried out at the Agricultural Research and Development Station, Crișurilor Plain, Oradea, during 1990-2016. They have demonstrated that irrigation is needed every year due to the extension of the drought regions in Romania. Irrigation has become a basic element in the technology of the autumn cabbage crop due to the yearly pedological drought. For cabbage, the minimum watering depth is considered 0-50 cm, while an irrigation average rate of 2,410 m3/ha, with a variation range of 1,330-4,900 m3/ha had to be imposed in order to maintain the soil moisture content on the watering depth between the easily available water content and the field capacity. Irrigation improved the microclimate conditions and the ratio water/temperature + light (Domuţa climate index) increased. Daily water consumption increased as well. As a result, total water consumption increased by 70%, with a variation range of 19-872%. Irrigation determined an yield gain of 153%; water use efficiency (kg/m3) increased by 60.0%; irrigation water use efficiency recorded an average value of 13.4 kg yield gain/m3, with variation range 6.7 kg yield gain/m3-24.2 kg yield gain/m3. The correlations quantified in the soil-water-plant system (number of days with pedological drought, yield, respectively yield gain; Domuţa climate index-yield; water consumption-yield) support irrigation for the autumn cabbage crop from Crişurilor Plain.

scholarly journals Management of Yellow Mosaic Disease of Mungbean Against Mungbean Yellow Mosaic Virus (MYMV) in Bangladesh

2018 ◽  
Vol 1 (2) ◽  
pp. p100
Author(s):  
Md. S. Islam ◽  
Md. B. Hossain ◽  
Saleh A. Shahriar ◽  
Fatema Begum ◽  
Md. N. H. Sani
Keyword(s):  
Mosaic Virus ◽  
Disease Severity ◽  
Agricultural Research ◽  
Disease Incidence ◽  
Mosaic Disease ◽  
Yellow Mosaic Virus ◽  
Economic Damage ◽  
Yellow Mosaic Disease ◽  
Yield Attributes ◽  
Mungbean Yellow Mosaic Virus

The prime aim of the study was to manage of Yellow mosaic disease of mungbean against Mungbean yellow mosaic virus (MYMV) by using one newly release botanical nutrient and through three selected insecticides. BARI (Bangladesh Agricultural Research Institute) released variety BARI mung-5, three insecticides (Imidacloprid, Acmix and Sobicron) and one botanical nutrient PPN (Peak performance nutrients) were used in the experiment. The plants were grown for pulse production and natural inoculums were relied upon for the infection of MYMV. Growth parameters, yield attributes and physiological features were significantly influenced by the application of selected insecticides and PPN combinations. Disease incidence and disease severity of MYMV were significantly varied among the treatments. Application of Imidacloprid with PPN combination gave the lowest disease incidence (3.13, 5.24 and 6.24% per plot and 14.33, 15.49 and 21.87% per plant) at 30, 40 and 50 DAS, respectively while the highest disease incidence (7.77, 13.70 and 19.24% per plot and 39.33, 48.20 and 56.63% per plant) were found in control at 30, 40 and 50 DAS, respectively. Application of Imidacloprid with PPN also gave the lowest disease severity (5.00, 6.00 and 13.33% at 30, 40 and 50 DAS, respectively while the highest disease severity (27.33, 35.00 and 45.00%) at 30, 40 and 50 DAS, respectively were measured in control treatment when no insecticides and PPN was used. If the disease is established once in the field then it is difficult to manage. As the disease is transmitted by vector (whitefly), the growers are suggested to control the vector populations before reaching economic damage and severe disease infection.

scholarly journals Effect of Inoculation of Plant Growth Promoting Rhizobacteria (PGPR) Mix I Formulations on Plant Growth, Yield, Disease Incidence and Disease Severity of Rhizoctonia Leaf Blight of Amaranthus (Amaranthus tricolor L.)

2021 ◽  
Author(s):  
A.R. Resmi ◽  
B. Lovely ◽  
A. Jayapal ◽  
G. Suja ◽  
N. Chitra
Keyword(s):  
Plant Growth ◽  
Disease Severity ◽  
Agricultural Research ◽  
Disease Incidence ◽  
Growth Yield ◽  
Plant Growth Promoting Rhizobacteria ◽  
Leaf Blight ◽  
Research Station ◽  
Plant Growth Promoting ◽  
Growth Promoting

Background: Amaranthus is the most popular and commercially cultivated leafy vegetable in the Southern part of India, especially Tamil Nadu and Kerala which is susceptible to a number of diseases. Among the different diseases affecting amaranth, foliar blight caused by Rhizoctonia solani Kuhn, is considered as the most serious disease in Kerala. Methods: A field experiment was taken up at Onattukara Regional Agricultural Research Station (O.R.A.R.S), Kayamkulam, Alappuzha, Kerala during December 2019 to February 2020 to assess the influence of dust and liquid formulations of Plant Growth Promoting Rhizobacteria (PGPR) mix I on growth, yield and disease incidence (Rhizoctonia leaf blight) in amaranthus. Result: The results of the study reveal that maximum number of leaves, number of branches per plant and yield were produced by the plants that were subjected to seedling root dip with 5% talc formulation followed by drenching with 5% talc solution at 30 DAT and 45 DAT. Regardless of talc or liquid formulation of PGPR mix I (2%) seedling dip followed by drenching at 15, 30 and 45 DAT provided the least disease incidence and disease severity in amaranthus at Onattukara condition. Hence use of PGPR mix I is a prerequisite for effective growth, yield and management of leaf blight of amaranthus at Onattukara.

scholarly journals Agro-economic Feasibility and Indices of Castor+Groundnut Intercropping System Under Irrigated Conditions During Rabi Season in Telangana

2021 ◽  
Vol 12 (2) ◽  
pp. 074-081
Author(s):  
A. V. Ramanjaneyulu ◽  
◽  
K. Indudhar Reddy ◽  
M. V. Nagesh Kumar ◽  
A. Madhavi ◽  
...  
Keyword(s):  
Water Use ◽  
Agricultural Research ◽  
Economic Feasibility ◽  
Research Station ◽  
Rabi Season ◽  
Land Equivalent Ratio ◽  
Net Returns ◽  
Use Efficiency ◽  
Telangana State ◽  
Equivalent Yield

An experiment was carried out for three consecutive years from 2014-15 to 2016-17 at Regional Agricultural Research Station (RARS), Palem, Professor Jayashankar Telangana State Agricultural University, Telangana, India to study and understand the agro-economic feasibility and various indices of castor+groundnut intercropping system under irrigated conditions during rabi season. There were six treatments viz., sole castor, sole groundnut, castor+groundnut (1:5) with RDF (recommended dose of fertilizer) to both the crops, castor+groundnut (1:7) with RDF to both the crops, castor+groundnut (1:5) with RDF to castor alone and castor+groundnut (1:7) with RDF to castor alone. The results indicated that sole groundnut with significantly higher castor equivalent yield (3960 kg ha-1) gave a higher yield advantage by 12.5 to 25.8% over castor+groundnut intercropping and 102.5% over sole castor. Further, sole groundnut recorded higher water use efficiency (10.25 kg ha-1 mm-1) and net returns mm-1 water used (Rs. 243.65 mm-1). The economics also indicated that sole groundnut was profitable in terms of gross (Rs. 1,50,465 ha-1) and net returns (Rs. 94,150 ha-1). However, higher benefit:cost ratio was observed with sole castor (2.76) followed by sole groundnut (2.67) and castor+groundnut intercropping (1:5) with RDF applied to both crops (2.57). Among various indices, the highest land equivalent ratio (1.13), area time equivalency ratio (1.00) and monetary advantage index (15072) were recorded with castor+groundnut (1:5) where RDF was applied to both the crops.

scholarly journals Effects of Irrigation and Nutrient Management on Summer Sesame (Sesamum indicum L.)

2021 ◽  
Vol 10 (10) ◽  
pp. 212-220
Author(s):  
P. Chakraborty M. Das Bairagya ◽  
S. Sarkar J. M. L. Gulati ◽  
G. H. Santra N. Nayak ◽  
B. K. Sahoo
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Seed Yield ◽  
Harvest Index ◽  
Nutrient Management ◽  
Agricultural Research ◽  
Sesamum Indicum ◽  
Research Station ◽  
Wide Range ◽  
Use Efficiency

Sesame (Sesamum indicum L.) plays a vital role in the Indian agriculture, industry and export trade. It commonly known as til and also called as “queen of oilseeds” has been known to be one of the earliest domesticated edible oilseeds used by mankind. It is grown in wide range of environments extending from semi-arid tropics and subtropics to temperate regions. A field experiment entitled “effects of irrigation and nutrient management on summer sesame (Sesamum indicum L.)”,was conducted at the Agricultural Research Station, Brinjhagiri, Chatabar of Faculty of Agricultural Sciences, Siksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar (Odisha) during summer season of 2021. Treatments included three irrigation levels (I1: 2 irrigations at 21 and 63 days after sowing, I2: 2 irrigations at 21 and 42 days after sowingand I3: 3 irrigations at 21, 42 and 63 days after sowing) are treated in main plot and four nutrient management (N1: 100% RDF, N2: 100% RDF + 2 t/ha FYM, N3: 100% RDF + 2 t/ha FYM + Jeevamrut @250l/ha and N4: 75% RDF + 2 t/ha FYM + Jeevamrut @250l/ha) are treated in sub plot were experimented in split plot design replicate thrice. The experiment was conducted with the variety of TKG-21 followed the spacing of 30 cm × 10 cm. The experimental soil was sandy loam in texture with the pH of 5.65 and EC of 7.33 ds/m. The recommended dose of NPK was given 30:15:15 kg ha-1. From the experiment, highest seed yield (643.49 kg ha-1), haulm yield (1820.13 kg ha-1) and harvest index (26.04%) was obtained in I3. N4 (75% RDF + 2 t/ha FYM + Jeevamrut @250l/ha) showed second highest seed yield (652.21 kg ha-1), haulm yield (1882.07 kg ha-1) and harvest index (25.74%) which is at per with N3. Highest water use efficiency (2.72 kg ha-1 m-1) was calculated in I2N3. Hence, it can be conclude that cultivation of sesame under75% RDF + 2 t/ha FYM + Jeevamrut @250l/ha with 2 irrigations at 21 and 42 days after sowing proved better in terms of yield, economics and water use efficiency.

scholarly journals Deficit Irrigation Effects on Cabbage (Brassicaceae Oleracea var. capitata L. Grandslam F1) Yield in Unheated Greenhouse Condition

2018 ◽  
Vol 6 (9) ◽  
pp. 1251
Author(s):  
Hakan Büyükcangaz
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Irrigation Water ◽  
Deficit Irrigation ◽  
Agricultural Research ◽  
Yield Response ◽  
Research Station ◽  
Greenhouse Condition ◽  
Irrigation Level ◽  
Use Efficiency

The aim of this study was to determine the effect of deficit irrigation on yield for cabbage grown under unheated greenhouse condition. The research was carried out at the Agricultural Research Station of Yenişehir High School of Uludağ University in Bursa, Turkey, in 2008. In the study, water was applied to cabbage as 1.00, 0.75, 0.50, 0.25 and 0.00% (as control) of evaporation from a Class A Pan corresponding to 2 day irrigation frequency. Irrigation water applied ranged from 70 to 520 mm and water consumption ranged from 90 to 548 mm. The effect of irrigation water level on the yield, head height, head diameter, head weight and dry matter were found to be significant. The highest yield was 72.8 t ha-1. Crop yield response factor for cabbage (ky) was found as 1.036. The highest values of water use efficiency (WUE) and irrigation water use efficiency (IWUE) for 2008 year of K2cp treatment was calculated to be 0.143 kg m-3 and 0.137 kg m-3, respectively. K2cp application (75%) can be recommended as the most effective irrigation level for the cabbage to which drip irrigation is applied under scarce and unheated greenhouse conditions.

scholarly journals Effect of irrigation on the growth and yield of (Daucus carota ssp. sativus) carrot in hill valley

1970 ◽  
Vol 35 (2) ◽  
pp. 323-329
Author(s):  
MS Alam ◽  
SA Mallik ◽  
DJ Costa ◽  
MS Alam ◽  
A Alam
Keyword(s):  
Irrigation Water ◽  
Agricultural Research ◽  
Irrigation Schedule ◽  
Maximum Yield ◽  
Growth Yield ◽  
Growth And Yield ◽  
Research Station ◽  
Irrigation Water Use ◽  
Use Efficiency ◽  
Plant Stand

Experiments were conducted at Hill Agricultural Research Station, Khagrachari during the period from November to February in 2005-06 and 2006-07 to determine the appropriate irrigation schedule for carrot production in hill valley. The experiment consisted of five treatments of irrigation after plant established viz. No irrigation (I0), irrigation at 1W: CPE of 0.6 (I1), irrigation at 1W: CPE of 0.8 (12), irrigation at 1W: CPE of 1.0 (I3) and irrigation at 1W: CPE of 1.2 (I4). The amount of irrigation water (IW) was fixed at 4 cm. The experiment was laid out in RCBD with 3 replications. The treatments significantly influenced the growth, yield contributing characters and yield of carrot. Among the treatments, irrigation at IW: CPE of 1.2 gave the maximum yield (51.47 t/ha) which received 4 irrigations after plant stand with applied total irrigation water of 16 cm resulting in the highest net return of Tk. 120,443 with the highest BCR of 2.41. It also produced carrot at the lowest production cost of Tk. 1.66 per kg. Irrigation water use efficiency was obtained 1705.63 kg/ha/cm by this treatment. Keywords: Irrigation; growth; yield; carrot. DOI: 10.3329/bjar.v35i2.5895Bangladesh J. Agril. Res. 35(2) : 323-329, June 2010

scholarly journals Effects of Irrigation Amount and Irrigation Frequency on Flue-Cured Tobacco Evapotranspiration and Water Use Efficiency Based on Three-Year Field Drip-Irrigated Experiments

Agronomy ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 624
Author(s):  
Jianfang Guang ◽  
Xiaohou Shao ◽  
Qisong Miao ◽  
Xu Yang ◽  
Chao Gao ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Positive Relationship ◽  
Irrigation Treatment ◽  
Irrigation Frequency ◽  
Irrigation Amount ◽  
Irrigation Water Use Efficiency ◽  
Irrigation Water Use ◽  
Use Efficiency ◽  
The Relationship

This study aimed to determine the effect of irrigation amount and irrigation frequency on drip-irrigated flue-cured tobacco evapotranspiration (ETa), yield, and water use efficiency. Four irrigation treatment levels were imposed: 100% IRT (fully irrigated treatment, no stress), 85% IRT, 70% IRT, RFT (rainfed treatment), and high, medium, and low irrigation frequencies were set. The relationship between irrigation volume and yield is a quadratic curve. The evapotranspiration had a positive relationship with the irrigation amount. The yield of flue-cured tobacco was the highest in 2016 (wet year), and the corresponding ETa was the smallest. The irrigation water use efficiency (IWUE) in the driest year, 2017, was lower than IWUE in the wet years 2015 and 2016, and the crop water use efficiency (CWUE) had similar results for the three years. IWUE increased with irrigation amount. The effect of irrigation frequency on CWUE was not significant. The CWUE had a positive relationship with yield. No significant differences due to irrigation frequency were found for yield.

scholarly journals Response of Maize to Different Intercropping Systems and Different Sowing Dates of Cowpea

2021 ◽  
Vol 36 (1) ◽  
pp. 169-180
Author(s):  
Moshira A. El-Shamy ◽  
Mona A.M. El-Mansoury ◽  
Maha A. El Bialy ◽  
Mohamed H. Helmy ◽  
A.F. Hassan
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Agricultural Research ◽  
Sowing Date ◽  
Research Station ◽  
Equivalent Ratio ◽  
The Third ◽  
Sowing Dates ◽  
Use Efficiency ◽  
System 1

The recent challenge in agriculture is producing more yields by consuming less water, especially in areas with limited resources of land and water. The study was carried out at Sakha Agricultural Research station., kafr el- sheikh governorate, Egypt, during the 2018 and 2019 summer seasons to evaluate productivity and economic profitability of cowpea intercrop with maize under different sowing dates of cowpea as well as evaluate the efficiency of the system using the land equivalent ratio (LER), water equivalent ratio (WER), some water relations also Gross return. The split-plot design with three replications was used. The main plots were assigned to the cowpea sowing date (D1-1st May, D2 - 20th May, and D3- 9th June), the sub-plot was contained to the intercropping pattern (P1-(1:1), P2- (1:2) and P3-(2:4)). The highest values of irrigation water use efficiency (IWUE) and crop water use efficiency (CWUE) were given with the first sowing date under the intercropping system (1:2). The cowpea sowing dates had no significant differences in yield and some components of maize and on its interaction with intercropping patterns. The highest LER was found with the third sowing date for cowpea under intercropping system (1:2) treatment in two seasons, respectively. In economic viewpoint high additional increase in profits over each cost for all intercropping patterns especially the third sowing date for cowpea under the intercropping system (1:2).

ROLE OF CONSERVATION AGRICULTURE IN IMPROVING PRODUCTION WATER AND NITROGEN EFFICIENCY OF WHEAT UNDER RAINFED CONDITIONS

2020 ◽  
Vol 51 (4) ◽  
pp. 1139-1148
Author(s):  
Othman & et al.
Keyword(s):  
Crop Rotation ◽  
Nitrogen Use Efficiency ◽  
Agricultural Research ◽  
Research Work ◽  
Conservation Agriculture ◽  
Nitrogen Efficiency ◽  
Research Station ◽  
Wheat Varieties ◽  
Nitrogen Use ◽  
Use Efficiency

The research work was conducted in Izra’a Research station, which affiliated to the General Commission for Scientific Agricultural Research (GCSAR), during the growing seasons (2016 – 2017; 2017 – 2018), in order to evaluate the response of two durum wheat verities (Douma3 and Cham5) and two bread wheat varieties (Douma4 and Cham6) to Conservation Agriculture (CA) as a full package compared with Conventional Tillage system (CT) under rainfed condition using lentils (Variety Edleb3) in the applied crop rotation. The experiment was laid according to split-split RCBD with three replications. The average of biological yield, grain yield,  rainwater use efficiency and nitrogen use efficiency was significantly higher during the first growing season, under conservation agriculture in the presence of crop rotation, in the variety Douma3 (7466 kg. ha-1, and 4162kg. ha-1, 19.006 kg ha-1 mm-1,  39.62 kg N m-2respectively). The two varieties Douma3 and Cham6 are considered more responsive to conservation agriculture system in the southern region of Syria, because they recorded the highest grain yields (2561, 2385 kg ha-1 respectively) compared with the other studied varieties (Cham5 and Douma4) (1951 and 1724 kg ha-1 respectively). They also exhibited the highest values of both rainwater and nitrogen use efficiency.

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