Aim: The present study was undertaken to assess IPM modules against Fall Armyworm in Maize through Frontline Demonstration and its economic impact. Place and Duration of Study: The present study was carried out in Ananthapuramu district of Andhra Pradesh during the period 2020-2023. Methodology: The main objective of frontline demos is to demonstrate recently available crop production and protection technology, as well as their management practices, in a farmer's field in a micro farming setting. The KVK, Reddipalle conducted front line demonstrations on maize throughout rabi seasons of 2020-21, 2021-22 and 2022–2023, as part of annual technical programme of Krishi Vigyan Kendra, Reddipalle, Ananthapuramu district organised 30 FLD locations in KVK operational area of adopted villages. Following a group discussion, a list of farmers was created, and those who were chosen received specialised training in various parts of suggested protection technologies. Results: According to the current results and subsequent analysis of the results, maize reported a higher total (91120 Rs ha-1) when compared to farmers practice (74309 Rs ha-1). The benefit cost ratio was significantly higher in the recommended approach (2.51) when compared to farmers practice (2.12). The higher grain output and better market pricing of the produce may be the causes of the maize demonstration's higher net returns and B: C ratio. Conclusion: The FLD intervention is highly effective among maize farmers with increased net returns of 13618 rupees per hectare. Hence, FLD plays a vital role in dissemination of technology on a community basis when compared to other approaches.
Sisal (Agave sisalana) historically an important crop grown in marginally degraded soils in north coastal zone of Andhra Pradesh. The leaf fiber from sisal is used for multiple purposes. The semi- perennial xerophytic sisal crop is significantly responding to nutrient management practices in rainfed soils. Pooled results of the field experiment conducted during 2020-21 to 2021-22 at Agricultural Research station, Amadalavalasa, Andhra Pradesh under All India Network Project on Jute and Allied Fibres revealed that, the growth and fibre yield parameters are responding positively to nutrient management practices. Combined application of 90: 30: 60 kg NPK ha-1 + vermicompost @ 2.5 t ha-1 increased number of leaves / plant by 50.4% as compared to control. Same treatment combination influenced the leaf length and width to the tune of 26% and 14% respectively compared to control. Among the treatments imposed in the experiment, the higher green leaf (49.2%) and dry fibre yield (49.4%) was recorded with 90: 30: 60 kg NPK ha-1 + vermicompost @ 2.5 t ha-1 over control. The effect of integrated application of nutrients to sisal was reflected in higher soil available nitrogen, phosphorus and potassium status compared to only NPK application and control treatments. Overall the sisal crop growth, green leaf yield, dry fibre yield and post-harvest soil fertility status was significantly higher with conjunctive use of organic and inorganic sources of nutrients compared to inorganic NPK alone. Hence, the integrated nutrient management proved to be highly rewarding in marginal, nutrient depleted and degraded soils, particularly in rainfed, semi-perennial crops like sisal.
Aim: The present study was taken up to assess the imidacloprid residue pattern in order to define strategies for improvement of quality and safety mainly healthfulness in grapes. Place and Duration of Study: The present study was carried out in Tamil Nadu during the period 2020-2021. Methodology: Dissipation studies were carried out in a farmer’s field at Theni, India (9o N latitude and 76o E longitude and 375m above mean sea level) with all good agricultural practices. During this study Grapes (Muscat Hamburg variety) was grown and the commercial formulation of imidacloprid 17.8% SL was applied at recommended dose (53 a.i ha-1) and double dose (106 a.i ha-1) Two sprays were given with an interval of 10 day by using a power operated sprayer as 500 L ha-1 spray fluid for dissipation study. The samples were processed by adopting modified QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) method. Results: The initial deposit imidacloprid in grape berries was 0.65 and 1.56 mg kg-1 at the recommended dose (53 g a.i ha-1) and double dose respectively (106 g a.i ha-1). The insecticide exhibited a slower dissipation rate and reached below its quantification level (<0.01 mg kg-1) in grape berries on 25th, 30th day at recommended and double doses respectively. Conclusion: The toxicological dietary risk assessment data shows that risk quotient is less than one which confirms safer to consumers. Pre-harvest interval does not apply for imidacloprid at recommended dose as being grapes harvested on the day of application itself were found safe for consumption and PHI/ safe waiting period of 2 days is suggested for double dose for harvesting.
A field experiment was conducted during Kharif, Rabi, 2020 and 2021 under AINP on Jute and Allied Fibres at Agricultural Research Station farm, Amadalavalasa – ANGRAU, Andhra Pradesh. The experiment was conducted to study the suitability and economic feasibility of short duration pulses and oilseeds as intercrops in between paired row spaces of sisal plantation. Results revealed that, short duration pulses are more feasible than oilseeds as intercrops with increased productivity per unit area. Sisal fibre yield and intercrops yield was higher with pulse intercropping than oilseeds. Sisal fibre equivalent yield of intercrops varied between 1.87 q ha-1 in case of sisal + mustard to 5.28 q ha-1 in sisal + cowpea. The net returns per rupee invested was highest in sisal + cowpea (3.42) followed by sisal + greengram (3.34), sisal + rajma (3.05) and lowest among pulses was sisal + blackgram (2.83). While, among oilseeds, highest was in sisal + niger (2.90) followed by sisal + mustard (2.80) and sisal + sesame (2.65) compared to lowest in sole sisal (2.49). However, the total system productivity in terms of sisal fibre equivalent yield of cropping system varied between 14.05 q ha-1 in case of sole sisal to 21.64 q ha-1 in sisal + cowpea. The results inferred that, growing of short duration pulses in between paired row spaces of sisal could be efficiently used by growing short duration pulses like cowpea, greengram, rajma and blackgram for increased cropping system under sisal plantation.
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