[article]
| Title : |
Effects of different doses of nitrogen on jassid (Amrasca biguttula biguttula Ishida), and red cotton bug (Dysdercus koenigii F) population and yield of okra (Abelmoschus esculentus (L.) Moench) in Chitwan, Nepal |
| Material Type: |
printed text |
| Authors: |
B. Belbase, Author ; G. Neupane, Author ; H. Yadav, Author ; N. Pandey, Author ; Regmi,R., Author |
| Publication Date: |
2020 |
| Article on page: |
43-48 p. |
| Languages : |
English (eng) |
| Keywords: |
Sucking pest, fertilizer, infestation, yield |
| Abstract: |
Insect pests such as okra jassid (Amrasca biguttula biguttula) and red cotton bug (Dysdercus koenigii) are the major crop
limiting biotic constraint in okra in Nepal. Man-made fossil-based pesticides and synthetic fertilizers use are the common
practices to reduce pest infestations, and to increase crop production. These synthetic agricultural practices are extremely
harmful to human health, biodiversity maintenance, and the environment. The aim of this experiment was to develop an
appropriate pest management protocol by adopting good agricultural practices. Higher than the recommended dose of
nitrogen-based fertilizer can increase the pest and diseases infestations as well as reduce the crop yield in long-run. Hence,
the main objective of this experiment was to analyze the effect of different doses of nitrogen fertilizer to the population of
sucking insect pest, such as jassid, and red cotton bug. The experiment was done by using a Randomized Complete Block
Design (RCBD), with five treatments (200 kg N ha-1, 150 kg N ha-1, 100 kg N ha-1, 50 kg N ha-1, 0 kg N ha-1), each replicated
four time. Results revealed that increase rate of nitrogenous fertilizer increase the infestation rate of jassid and red cotton bug.
However, the highest yield was recorded in 200 kg N ha-1 followed by 150 kg N ha-1, respectively. The highest benefit-cost
ratio was found in 150 kg N ha-1 and 100 kg N ha-1. It is thus suggested that optimum use of nitrogen increase the economic
profit as well as reduce the pest infestation of sucking insect. |
| Link for e-copy: |
https://afu.edu.np/sites/default/files/4._Effects_of_different_doses_of_nitrogen [...] |
in Journal of Agriculture and Forestry University > Volume 3 (2019) . - 43-48 p.
[article] Effects of different doses of nitrogen on jassid (Amrasca biguttula biguttula Ishida), and red cotton bug (Dysdercus koenigii F) population and yield of okra (Abelmoschus esculentus (L.) Moench) in Chitwan, Nepal [printed text] / B. Belbase, Author ; G. Neupane, Author ; H. Yadav, Author ; N. Pandey, Author ; Regmi,R., Author . - 2020 . - 43-48 p. Languages : English ( eng) in Journal of Agriculture and Forestry University > Volume 3 (2019) . - 43-48 p.
| Keywords: |
Sucking pest, fertilizer, infestation, yield |
| Abstract: |
Insect pests such as okra jassid (Amrasca biguttula biguttula) and red cotton bug (Dysdercus koenigii) are the major crop
limiting biotic constraint in okra in Nepal. Man-made fossil-based pesticides and synthetic fertilizers use are the common
practices to reduce pest infestations, and to increase crop production. These synthetic agricultural practices are extremely
harmful to human health, biodiversity maintenance, and the environment. The aim of this experiment was to develop an
appropriate pest management protocol by adopting good agricultural practices. Higher than the recommended dose of
nitrogen-based fertilizer can increase the pest and diseases infestations as well as reduce the crop yield in long-run. Hence,
the main objective of this experiment was to analyze the effect of different doses of nitrogen fertilizer to the population of
sucking insect pest, such as jassid, and red cotton bug. The experiment was done by using a Randomized Complete Block
Design (RCBD), with five treatments (200 kg N ha-1, 150 kg N ha-1, 100 kg N ha-1, 50 kg N ha-1, 0 kg N ha-1), each replicated
four time. Results revealed that increase rate of nitrogenous fertilizer increase the infestation rate of jassid and red cotton bug.
However, the highest yield was recorded in 200 kg N ha-1 followed by 150 kg N ha-1, respectively. The highest benefit-cost
ratio was found in 150 kg N ha-1 and 100 kg N ha-1. It is thus suggested that optimum use of nitrogen increase the economic
profit as well as reduce the pest infestation of sucking insect. |
| Link for e-copy: |
https://afu.edu.np/sites/default/files/4._Effects_of_different_doses_of_nitrogen [...] |
|
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