Let the distance be x km. Speed upstream = 4 – 2 = 2 kmph Speed downstream = 4 + 2 = 6 kmph => (x/6) + (x/2) = 5 => (x + 3x)/6 = 5 => 4x = 30 => x = 7.5 km
Alkali soil having pH of-
Pegging is observed in groundnut and therefore the most suitable soil for its cultivation is ___
The specific heat of quartz among the different soil constituents is the ___ ?
Which of the following methods is used for maintaining breeder’s seed in self-fertilized crops?
Among the following is an example of an amide fertilizer?
Pre-soaking treatment with …………… increases the seed germination.
What is the edible plant part of celery which is generally used for salad?
Which of the following act(s) as strong germinator for parasitic weeds?
The seed rate of white jute is required for line sowing:
Water required to meet the demands of evapotranspiration (ET) and the metabolic activities of the plants together known as
