Agronomy - Study Mode
[#716] Calculate the volume required per ha if 2 lit water is needed to spray 70m length with a swath of 1.4 m.
Correct Answer
(B) 204 L
Explanation
Solution: To calculate the volume required per hectare (ha) for spraying, we need to find the area covered by one swath and then multiply it by the number of swaths required to cover one hectare. Area covered by one swath = length × swath width = 70 m × 1.4 m = 98 m² To cover one hectare (10,000 m²), we need to divide the total area by the area covered by one swath: Volume required per hectare = (Area of one hectare) / (Area covered by one swath) × Volume for one swath Volume required per hectare = (10,000 m²) / (98 m²) × 2 L = 204.08 L Rounding off 204.08 to the nearest whole number gives 204 L . So, the correct answer is indeed Option B: 204 L .
[#717] Growing of coconut, black pepper and ginger simultaneously in the same field is called
Correct Answer
(D) Multistoried cropping
Explanation
Solution: Growing coconut, black pepper, and ginger simultaneously in the same field are called Multistoried Cropping means growing plants of different heights in the same field at the same time. Coconut is the tall heighted tree, while black pepper is a normal height plant and ginger is the herbaceous plant grown underground. This practice is mostly used in Orchards and plantation crops for maximum use of solar energy even under high planting density.
[#718] Jowar is primarily a native of
Correct Answer
(B) Africa
Explanation
Solution: Jowar is primarily a native of Africa but now it is grown in many of the countries as a cereal grain and also for fodder. It is either cultivated in warm climates worldwide or naturalized in pasturelands. Most of the varieties are drought and heat tolerant, nitrogen efficient and are specially grown in arid and semi-arid regions.
[#719] PDR-14 is a variety of
Correct Answer
(C) Rajma
Explanation
Solution: PDR 14 is a widely grown variety of Rajma. It is high-yielding a hybrid variety of Red variegated seeds of kidney beans in India. It is tolerant of BSMV. Karnataka, Maharastra, and Karnataka are the major producers of Rajma in India. This crop is used as a source of food, feed, fodder, green manuring and green pasture.
[#720] In Dapog method of rice cultivation seedlings become ready for transplating on
Correct Answer
(D) 12 th days
Explanation
Solution: Dapog's method of growing rice seedlings in the nursery was first done in the Philippines. In this method, a dense stand of seedlings is raised without any contact with soil. By this method, Dapog seedlings are ready for transplanting in 12 days.