Effect of rodenticides and traps against lesser bandicoot rat,(Bandicota bengalensis) in rice field

2016 ◽  
Author(s):  
R. K. Borah ◽  
A. Mallick
Keyword(s):  
Agricultural Research ◽  
Field Trials ◽  
Growth Stages ◽  
Research Station ◽  
Bandicota Bengalensis ◽  
Initiation Stage ◽  
Harvesting Stage ◽  
Field Rodents ◽  
Bamboo Traps ◽  
Different Growth Stages

An investigation was carried out at Regional Agricultural Research Station (RARS), Titabor and Instructional-Cum- Research Farm, Assam Agricultural University, Jorhat during 2013-14 and 2014-15 in boro and sali season respectively. The field trials were conducted to evaluate effectiveness by combining rodenticides with local bamboo traps against field rodents in rice. Combined effect of rodenticides and traps were evaluated at different growth stages of rice against Bandicota bengalensis in terms of live burrow count (LBC/ha), trapping index (TI) as well as per cent cut tillers in both boro and sali rice, respectively. Baiting with bromadiolone (0.005%) at panicle initiation stage and bamboo traps at milky stage recorded the highest reduction in rodent population (72.39% LBC/ha, 70.57% TI and 68.13% cut tillers) in boro and (72.27% LBC/ha, 77.13% TI and 70.77% cut tillers) in sali rice over control at harvesting stage. The second best treatment in respect of per cent reduction of LBC/ha, trap index and cut tillers was bamboo traps at maximum tillering stage and bromadiolone (0.005%) at panicle initiation stage in both boro and sali rice, respectively which recorded a reduction of 65.89% LBC/ha, 66.19% TI and 65.66% cut tillers in boro rice and 68.33% LBC/ha, 71.04% TI and 62.83% tiller damage in sali rice

scholarly journals Effect of water stress at different growth stages on quantity and quality traits of Virginia (flue-cured) tobacco type

2010 ◽  
Vol 56 (No. 2) ◽  
pp. 67-75 ◽  
Author(s):  
M.H. Biglouei ◽  
M.H. Assimi ◽  
A. Akbarzadeh
Keyword(s):  
Water Stress ◽  
Block Design ◽  
Water Volume ◽  
Growth Stages ◽  
Research Station ◽  
Quality Traits ◽  
Effect Of Water ◽  
Leaf Yield ◽  
Number Of Leaves ◽  
Different Growth Stages

A field research was carried out in the years of 2005, 2006 and 2007 in order to determine the effect of irrigation and water stress imposed at different growth stages on quantity and quality traits of Virginia tobacco plants. A randomized complete block design with four treatments and three replications was applied at the Rasht tobacco research station. Treatments were: no irrigation (dryland farming) as the complete water stress (WS<sub>0</sub>), water stress till the end of flower bud forming stage (WS<sub>1</sub>), water stress till the end of flowering stage (WS<sub>2</sub>) and full irrigation (WS<sub>3</sub>) as control in each cropping season. The combined analysis of variance showed that the effect of water stress on all the traits related to yield, quality traits and all the traits related to yield components except number of leaves, was significant (<i>P</i> < 0.01). The interaction between year and water stress showed that the treatment of WS0 in all three experimental years significantly (<i>P</i> < 0.05) affected the fresh and dry leaf yield, plant height and sugar and nicotine percentage. The comparison of means of three years (average of three years) also revealed that the treatment of WS<sub>0</sub> significantly (<i>P</i> < 0.05) affected all of the traits which were related to tobacco quantity and quality except for the number of leaves. Moreover, the level of water productivity in recognition of each water volume unit for three experimental years for the treatments of WS<sub>1</sub>, WS<sub>2</sub> and WS<sub>3</sub> were 1.223, 0.873 and 0.594 kg/m<sup>3</sup>, respectively, in the case of average dry leaf yield. Consequently, the results indicate that with optimizing irrigation application we can reach the higher level of productivity.

scholarly journals Grain Yield and Yield Components of Quality Protein Maize Genotypes as Influenced by Irrigation and Plant Population in the Nigerian Savannah

2014 ◽  
Vol 6 (4) ◽  
pp. 166 ◽  
Author(s):  
B. M. Sani ◽  
I. U. Abubakar ◽  
A. M. Falaki ◽  
H. Mani ◽  
M. M. Jaliya
Keyword(s):  
Grain Yield ◽  
Yield Components ◽  
Agricultural Research ◽  
Field Trials ◽  
Irrigation Scheduling ◽  
Plant Population ◽  
Growth And Yield ◽  
Quality Protein Maize ◽  
Research Station ◽  
Yield And Yield Components

An experiment was conducted to assess the yield and yield components of QPM genotypes to plant population under irrigated conditions in a semi arid ecology of Northern Nigeria. Field trials were conducted at the Irrigation Research Station, Institute for Agricultural Research, Kadawa (11° 39'N, 08° 20'E) and 500 m above sea level) during dry seasons 2007, 2008 and 2009 to study the effect of (Zea mays L.) genotypes (TZE-W Pop X 1368, EV-DT W99 STR and DMR-ESRW), four plant population (33333, 44444, 55555 and 66666 plants ha-1) and three irrigation scheduling (40, 60 and 80 centibars soil moisture tension) on the growth and yield of quality protein maize. A split plot design was used with combinations of genotypes and irrigation regimes assigned to the main plot and plant population assigned to the sub-plot. The treatments were replicated three times. The study revealed that genotype EV-DT W99 STR had significantly higher weight of ears per plant, cob length, cob diameter, number of rows per cob, 100 grain weight, grain yield, shelling percentage and harvest index than the other two genotypes used in the trial. Irrigating at 40 and 60 centibars significantly increased weight of ears per plant, while delayed irrigation significantly depressed total dry matter production. Based on the results obtained in this study, it can be concluded that the use of genotype EV-DT W99 STR, at 60 centibars irrigation scheduling and population of 55,555 plants ha-1 had resulted in good agro-physiological characters of QPM at Kadawa.

Effect of silicon at panicle initiation on the growth of rice (Var. ADT-36) plants at different growth stages

2002 ◽  
Vol 50 (2) ◽  
pp. 179-184
Author(s):  
P. M. Arthanari ◽  
P. Gnanamoorthy ◽  
S. Ramasamy
Keyword(s):  
Tamil Nadu ◽  
Dry Matter ◽  
Field Experiments ◽  
Dry Matter Production ◽  
Growth Stages ◽  
Maturity Stage ◽  
Maturity Stages ◽  
Matter Production ◽  
Initiation Stage ◽  
Different Growth Stages

Field experiments were conducted at Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India during the Rabi (November 1997-March 1998) and Kharif (July 1998-November 1998) seasons to identify the effect of silicon at panicle initiation on the growth of rice plant (Variety ADT-36) at different growth stages. Furnace slag was applied as a silicon source at 2 t/ha at the panicle initiation stage along with other nutrients. The dry matter production was recorded at the active tillering, panicle initiation, booting, flowering, one week after flowering and maturity stages in both the seasons. The total dry matter production was greater in the Kharif season than in the Rabi season. The application of slag at the panicle initiation stage along with N and K at the flowering stage had a significant influence over the dry matter production. A similar trend was observed in both the seasons. The silicon uptake was recorded at the panicle initiation and maturity stages. About 30-40% of the silicon absorbed during the early stages and the maturity stage was present in the shoot, whereas 20-30 % of the silicon absorbed during the maturity stages was present in the leaf blades. Based on the results, it is concluded that the supply of silicon during the panicle initiation stage is most important for plant growth.

scholarly journals Effects of Gallery Applied at Different Growth Stages to Dwarf Burning Bush (Euonymus alatus ‘Compacts’)

1998 ◽  
Vol 16 (3) ◽  
pp. 155-158 ◽  
Author(s):  
Sydha Salihu ◽  
Jeffrey F. Derr ◽  
Kriton K. Hatzios
Keyword(s):  
Leaf Size ◽  
Field Trials ◽  
The Other ◽  
Growth Stages ◽  
Bud Break ◽  
Herbicide Application ◽  
Application Timing ◽  
Euonymus Alatus ◽  
Dormant Stage ◽  
Different Growth Stages

Abstract The effect of Gallery application timing on dwarf burning bush tolerance was determined in field trials. Gallery was applied foliarly at 0.84, 1.69 and 3.39 kg ai/ha (0.75, 1.5 and 3 lb ai/A) to dwarf burning bush at different growth stages. Gallery applied at the dormant stage and two months after bud-break did not injure dwarf burning bush. Plants treated one month after bud-break with all three rates were injured approximately 30 to 45% at one and three months after herbicide application. Injury symptoms were manifested as decreased leaf size and leaf distortions. Gallery applied at 0.84 and 1.69 kg/ha (0.75 and 1.5 lb/A) one month after bud-break decreased plant width. Shoot-dieback was also observed in plants treated with Gallery at all rates one month after bud-break. Gallery at all three rates applied one month after bud-break caused 60 to 75% of the leaves to defoliate six weeks earlier in the fall compared to the other application timings.

scholarly journals Optimization of Irrigation and Fertigation Scheduling for Sustainable Sugarcane Initiative (SSI) through Subsurface Drip Irrigation in Western Zone of Tamil Nadu

2019 ◽  
Vol 7 (1) ◽  
pp. 117-121
Author(s):  
M. Manikandan ◽  
G. Thiyagarajan ◽  
S. Thenmozhi ◽  
S.K. Natarajan ◽  
J. Bhuvaneswari ◽  
...  
Keyword(s):  
Drip Irrigation ◽  
Tamil Nadu ◽  
Agricultural Research ◽  
Block Design ◽  
Field Trials ◽  
Climatic Zone ◽  
Research Station ◽  
Pan Evaporation ◽  
Randomized Block Design ◽  
Surface Drip Irrigation

Sustainable Sugarcane Initiative (SSI) under Sub Surface Drip Irrigation (SSDI) is gaining momentum among the farmers because of more output with less input. Even though the benefits of SSI under SSDI are realized by farmers, development of optimal irrigation and fertigation schedule is need of the hour for Western Agro-climatic zone of Tamil Nadu. Field trials were carried out at Agricultural Research Station, Bhavanisagar from 2014 to 2017 to develop an optimal irrigation and fertigation schedule for SSI for Western Agro-climatic zone. The experiment was taken in a randomized block design with three replications. The experiment consisted of eight treatments of which six treatments comprised of SSDI with three irrigation regimes of 100, 80 and 60 percent pan evaporation and two fertigation levels of 100 and 75 percent of recommended N & K and two treatments in surface drip irrigation (SDI) with 100 percent pan evaporation (PE) + 100 percent RD and 100 percent PE + 75 percent RD of N&K through fertigation. The results of this study revealed that SSDI with 60 per cent PE + 100 per cent RD of N&K through fertigation recorded lower water use (1004 mm) and higher WUE (113 kg/ha-mm). However, significantly higher and comparable yield of sugarcane (148 t/ha) was recorded in SSDI with 100 per cent PE + 100 per cent RD of N&K through fertigation and surface drip irrigation with 100 per cent PE + 100 per cent RD of N&K through fertigation. The net return (Rs. 2,09,405 per ha) and B:C ratio (2.6) was higher in SSDI with 100per cent PE + 100 per cent RD of N&K through fertigation treatment.

scholarly journals Effect of Different Durations of Water-Logging at Different Growth Stages on Seed Yield of Sesame

2018 ◽  
Vol 1 (2) ◽  
pp. p68
Author(s):  
M. H. Ali
Keyword(s):  
Seed Yield ◽  
Growth Stage ◽  
Field Trials ◽  
Growth Stages ◽  
Differential Effects ◽  
Growing Period ◽  
Water Logging ◽  
Different Growth Stages

In Bangladesh, sesame suffers from water-logging during its growing period. Multi-year and multi-location field trials were carried out to study the effect of different durations of water-logging at different growth stages on seed yield of sesame. From two years results, it is revealed that the effects of water-logging during a particular growth stage or particular duration of water-logging on seed yield depends on pre- and/or post water-logging from the rainfall. Differential effects of the cultivars were also observed. The cultivar Binatil-2 and Binatil-3 showed reasonable seed yield under water-logging at flowering and mid pod-formation stages for 24 to36 hours.

scholarly journals Population dynamics of stem fly and defoliator pests of soybean and their natural enemies in relation to weather parameters

2021 ◽  
Vol 17 (AAEBSSD) ◽  
pp. 17-26
Author(s):  
R. Bala Muralidhar Naik ◽  
K. Vijaya Lakshmi ◽  
M. Venkataiah ◽  
C. Srinivas ◽  
G. Uma Devi ◽  
...  
Keyword(s):  
Natural Enemies ◽  
Insect Pests ◽  
Agricultural Research ◽  
Growth Stages ◽  
Research Station ◽  
Peak Activity ◽  
Lepidopteran Insect ◽  
Weather Parameters ◽  
Lepidopteran Pest ◽  
Tobacco Caterpillar

The field experiment was carried out at Polasa Farm, Regional agricultural research station Jagtial during the Kharif, 2014-15 and 2015-16. Study about pre dominant lepidopteran insect –pests in soybean crop noticed that the tobacco cut worm, (Spodptera exigua Hubner), green semi looper(Crysodexis acuta Walker), and tobacco caterpillar (Spodoptera litura Fab) along with stemfly, (Melanagromyza obtusa Zehnter) as non lepidopteran pest were noticed at various growth stages of cropgrowth. The peak activity of stem fly (37.84%) was observed during 37th standard week per meter row) for the year 2014 and for the year 2015 to a maximum infestation of 35.70 per cent during 30th std.week. The peak activity of caterpillar pests i.e., S. litura (7.6 larvae per meter row) for the year 2014 was observed during 34th std.week and for the year 2015 (12.4 per meter row during 36th std.week and C. acuta (0.7 larvae per meter row) during 36th std. week for the year 2014 and for the year 2015 (2.20 larvae/mrl on 37th std week. S. exigua (1.6 larvae per meter row) for both the years 2014 and 2015 was observed during 32th std.week Among the natural enemies, one predators namely, spiders (Oxyopes sp. was observed to prey on the insect pests.The biocontrol agent’s one species, lynx spider, Oxyopes sp. population recorded on the crop during Kharif , 2014 ranged from 0.15 to 0.40 /mrl and 0.15 to 0.60/ mrl during Kharif, 2015.

scholarly journals Effects of Foliar Applications of Boron at the Early Vegetative Stages on Plant Growth Parameters of Maize

2019 ◽  
Vol 7 (10) ◽  
pp. 1522
Author(s):  
Ömer Konuşkan ◽  
Mehmet Yalçın ◽  
Hüseyin Gözübenli
Keyword(s):  
Field Experiments ◽  
Agricultural Research ◽  
Foliar Application ◽  
Growth Parameters ◽  
Foliar Spray ◽  
Research Area ◽  
Growth Stages ◽  
Growing Seasons ◽  
Plant Characteristics ◽  
Different Growth Stages

Boron is an important micronutrient for growth and development of crop plants. Plant species differ in their requirement of boron for growth. This study was conducted to determine the effect of boron application on the plant characteristics of maize during early leaf stages. The experiments were conducted in Tel – Kaliş agricultural research area at the Mustafa Kemal University in 2015 and 2016 growing seasons. The field experiments were arranged in a split plot design with three replications. Four boron dosages (control, 4, 6 and 8 mg/m2) were applied at three growing stages (V2, V4 and V2V4 (at V2 and V4 stages in two equal parts) as foliar spray. The results revealed that the effects of foliar application of B were positive but statistically insignificant on plant characteristics. Further researches should be conducted for suitable boron application time at different growth stages of maize.

scholarly journals Crop coefficient of a popular potato variety in Bangladesh

2017 ◽  
Vol 42 (1) ◽  
pp. 67-76
Author(s):  
AR Akanda ◽  
MS Rahman ◽  
MS Islam ◽  
AJ Mila
Keyword(s):  
Potato Variety ◽  
Tuber Yield ◽  
Agricultural Research ◽  
Crop Coefficient ◽  
Climatic Conditions ◽  
Growth Stages ◽  
Crop Evapotranspiration ◽  
Agricultural Research Institute ◽  
Initial Development ◽  
Different Growth Stages

Crop evapotranspiration (ETc) and crop coefficient (Kc) values of potato (variety: BARI Alu -7, Diamant) at different growth stages were determined through lysimeter method at Irrigation and Water Management Division of Bangladesh Agricultural Research Institute (BARI), Gazipur during 2008 - 2009. The study was conducted by applying irrigation at 25 and 40 days after planting (DAP) allowing drainage (AD) (T1), at 25, 40, and 55 DAP AD (T2), at 25, 40, and 60 DAP AD (T3), and at 25, 40, 55, and 60 DAP AD (T4) within and adjacent of four lysimeter tanks. Irrigation at 25, 40, and 55 DAP produced the highest tuber yield and was considered to be suitable for estimating seasonal ETc, and Kc values. The seasonal highest ETc was found to be 162 mm. The Kc values of 0.25, 0.62, 0.70 and 0.18 were determined at initial, development, midseason and late season stages of potato. These values differed slightly from the FAO recommended values. As the lysimeter provides control environment, the Kc values determined by this method are most dependable and recommended for estimating ETc of potato in semi-arid climatic conditions of Bangladesh.Bangladesh J. Agril. Res. 42(1): 67-76, March 2017

scholarly journals Physiochemical Changes of Mung Bean [Vigna radiata (L.) R. Wilczek] in Responses to Varying Irrigation Regimes

Horticulturae ◽  
2021 ◽  
Vol 7 (12) ◽  
pp. 565
Author(s):  
Mohammad Rafiqul Islam ◽  
Mohd. Mostofa Kamal ◽  
Mohammad Ashraful Alam ◽  
Jamil Hossain ◽  
Walid Soufan ◽  
...  
Keyword(s):  
Water Stress ◽  
Seed Yield ◽  
Mung Bean ◽  
Agricultural Research ◽  
Photosynthetic Pigment ◽  
Yield Reduction ◽  
Growth Stages ◽  
Research Station ◽  
Flowering Stage ◽  
Drought Tolerant

Mungbean is one of the most powerful pulses providing substantial protein for human diets and fixing N to the soil, improving nutritional food security and agricultural sustainability. The production of summer mungbean in the tropics and subtropics is adversely affected by drought due to water scarcity caused by various factors as well as lack of rainfall. Irrigation at different growth phases is not a suitable solution. An environmentally friendly and economically viable answer is a convenient irrigation management option that will be available to farmers together with drought-tolerant genotypes. The study considered to determine the effect of differences between drought-tolerant and drought susceptible genotypes on water productivity response and physiological traits in mung beans. To quantify seed yield-related to irrigation at different growth stages eventually to quickly determine the most appropriate irrigation stage. One water stress tolerant mung bean genotype (BMX-08010-2) and one sensitive genotype (BARI Mung-1) were grown in the field with four different irrigation schedules along with water stress conditions (no irrigation) under rain shelter at Regional Agricultural Research Station, BARI, Ishwardi, Pabna, Bangladesh. The experiment was laid out in split plots with three replications, with irrigation schedules assigned in the main plot and mung bean genotypes assigned in the side plots. Water use efficiency ranged from 3.79 to 4.68 kg ha−1 mm−1 depending on irrigation regime, and mung bean seed yield of mung bean Water stress decreased plant water status, photosynthetic pigment and membrane stability index, and increased proline soluble sugar content. Treatments that received irrigation during two or three phases (I3 or I4) gave significantly higher yields than those that received irrigation during only one stage (I1 and I2) with the lowest yield. While the yield obtained ranged between 1145.44 kg ha−1 with seasonal irrigation of 277 mm (I4) and 555.14 kg ha−1 without irrigation (I0). The flowering stage (I3) was recorded as the most sensitive growth stage with an 18.15% yield reduction compared to the treatment with triple irrigation (I4). Also, depending on the irrigation sources, at least two irrigation phases should be provided at the triple leaf stage (I2, i.e., 20 DAS) and at the flowering stage (I3, i.e., 35 DAS) to achieve the highest yield. Genotypes that maintained the higher performance of physicochemical traits under water stress provided higher seed yield and promoted drought tolerance. Therefore, these parameters can be used as physiological and biochemical markers to identify and develop superior genotypes suitable for drought-prone environments.

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