Question
Consider the following: 1.  Birds 2. Â
Dust blowing 3. Rain 4. Wind blowing Which of the above spread plant diseases?Solution
Extensive and severe epidemics of plant diseases are mostly the results of wind transmission of the pathogens. Splashing rain drops mostly transmit the foliar diseases from leaf to leaf, from shoot to shoot and even from plant to plant in case of closely spaced crops. Birds play a minor role in disease transmission in plants by way of dispersal of seeds of higher flowering parasite etc. Thus, plant disease can spread by all of the mentioned agents.
If a crop is to be irrigate at 0.8Â IW: CPE with 60 mm depth, after which of the following should it be irrigated?Â
Which of the following compounds is considered a nitrogenous waste product that is less toxic and mostly insoluble in insects?
Diammonium phosphate contains-
Which of the following is INCORRECT?
 _______are plants that have chromosome numbers which are not an exact multiple of the haploid number.
4 'A' model of rural marketing includes:
The environmental requirements for germination of seed areÂ
When fishes are reared along with plants, plants filtering water for the fishes and fishes provide organic matter to the plants, it is called as ____
Which of the following is the main objective of India's New Export Policy 2018?
Which branch of agriculture deals with principles and practices of soil, water and crop management?
