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Borgohain, R.
- Effect of Post Shooting Application of Urea and Sulphate of Potash at the Denavelled, Distal Stalk End of Banana Cv. Borjahaji
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Authors
Affiliations
1 Krishi Vigyan Kendra, Jorhat (Assam), IN
1 Krishi Vigyan Kendra, Jorhat (Assam), IN
Source
Asian Journal of Bio Science, Vol 9, No 2 (2014), Pagination: 296-298Abstract
A field experiment was conducted at farmer's field under on farm trial during 2011-12, in Jorhat district of Assam, to study the impact of post shooting application of urea and sulphate of potash on the improvement of bunch weight of banana cultivar Borjahaji. The denavelled distal stalk end of the bunch was fed with urea, sulphate of potash blended with fresh cowdung soon after the fruit set. The results showed that when the bunch was fed with urea (7.5g), sulphate of potash (7.5g) blended with 500 g fresh cowdung (T4) all the yield attributing characters viz., length of fingers, weight of fingers of first hand, weight of fingers of last hand, girth of fingers, weight of first hand, weight of last hand and bunch weight were maximum as compared to denavelling and application of cowdung only (T2) and application of urea and cowdung at denavelled distal stalk end (T3). The minimum of all these characters and bunch weight were obtained in control (T1) where male bud was retained till harvest. The results revealed that the nutrients moved from the blend into the bunch and significantly enhanced the weight of fruits and bunch. When the bunch was fed with urea 7.5 g, sulphate of potash 7.5 g blended with cowdung 500 g (T4) the response was 34.77 per cent, 11 per cent and 5.9 per cent increase in weight of bunch over the treatments T1, T2 and T3, respectively.Keywords
Urea, De-Navelling, Sulphate of Potash, Finger, Cowdung, Bunch.
References
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- Efficacy of Metarhizium Anisopliae, Beauveria Bassiana and Neem Oil against Tomato Fruit Borer, Helicoverpa Armigera under Field Condition
Abstract Views :849 |
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Authors
Affiliations
1 Krishi Vigyan Kendra (A.A.U.), Kaliapani Changmaigaon (Assam), IN
2 Krishi Vigyan Kendra (A.A.U.), Kajalgaon, Chirang (Assam), IN
3 Directorate of Extension Education, Assam Agricultural University, Jorhat (Assam), IN
1 Krishi Vigyan Kendra (A.A.U.), Kaliapani Changmaigaon (Assam), IN
2 Krishi Vigyan Kendra (A.A.U.), Kajalgaon, Chirang (Assam), IN
3 Directorate of Extension Education, Assam Agricultural University, Jorhat (Assam), IN
Source
Asian Journal of Bio Science, Vol 9, No 2 (2014), Pagination: 151-155Abstract
A field study was conducted at farmers field of Jorhat, Assam during 2010-11 to evaluate the efficacy of three commercial biopesticides, two based on insect pathogenic fungi viz., Beauveria bassiana and Metarhizium anisopliae and one botanical-Neem oil in comparison with chemical-cypermethrin against the tomato fruit borer (Helicoverpa armigera). The study revealed the reduction in fruit damage was upto 92.20 per cent in cypermethrin treated plot followed by 91.12 per cent, 88.74 per cent and 87.01 per cent in the plots treated with Neem oil, B. Bassiana and M. Anisopliae, respectively due to H. armigera larvae over control. The study showed that neem oil was nearly as effective as cypermethrin in reducing fruit damage leading to increased yield. The highest increase in yield over control was noticed in cypermethrin treated plots (62.85%) followed by neem oil treated plots (41.83%). The entomopathogenic fungi- Beauveria bassiana and Metarhizium anisopliae could be effectively used as pest management option in production of organic tomato to reduce the pest population below economic threshold level and increased yield.Keywords
Metarhizium anisopliae, Beauveria bassiana, Neem Oil, Helicoverpa armigeraReferences
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