Adoption of Bio and Organic Amendments: A New Perspective in Crop Protection | Chapter 03 | Advances and Trends in Agricultural Sciences Vol. 3
Crop loss due to pest attack occurs
regardless of the fact that a large quantity of pesticides is used annually.
Use of chemical pesticides not only destroy the beneficial enemies but also
alter the physiology of crop making more susceptible to pest attack. This
chapter focuses on the scope and strategies of crop protection using
bio-organic amendments with special reference to infestation of major pests,
foliar disease and leaf productivity of mulberry. Massive utilization of
inorganic fertilizers for a prolonged period leads to alteration of the soil
chemical properties, the availability and uptake of nutrients by the plants.
Several studies found that under water stress conditions, crops in organic
agriculture systems produce significantly higher yields than comparable with
other conventional crops using inorganic package and practices. Researchers
have established that increase nitrogen levels in the tissues of the plants may
decrease resistance and increase susceptibility to pest attacks. Although
clarity is needed to establish the relationship between crop nutrition and
pests, most studies have shown that insect pests like aphids and mites are more
prone to nitrogen fertilizers. With relevant to above fact adoption of organic
package and practices is needed for sustainable yield of crops as well as to
provide exact nutrient requirements to the crop those prone to pest attack.
Author(s) Details
Barna Chakraborty
Department of Zoology, DDE,
Vidyasagar University, Midnapore-721102, India.
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