Which one of the following factor is responsible for maximum losses of nitrogen in rice crop?
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Solution
Nitrogen Losses From Rice Field Formation and lose of gases from of N2 by biological reduction of \(NO_{3}^{-}\) and \(NO_{2}^{-}\) is known dinitrification. In rice field N2 are applied from urea mainly but this N2 is convert into ammonia. The extra ammonia in the field is not use for plants their for this nitrogen losses.
In case of Zn deficiency, in paddy ROW much zinc sulphate should be applied in one hectare of soil?
A rice disease mostly occured in cloudy weather and release H2S gas is
Jalmagan is a variety of
Which state having highest area under rice cultivation in India?
Which of the following is appropriate time for raising seedling through Dapog method in nursery?
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Solution
Dapog Method of Rice This method of raising nursery has been introduced in India from the Philippines. It has been adopted by some farmer's in Andhra Pradesh for raising seedlings.The main advantage of this method is that less area is required to raise seedling i.e., 25-30 m2 area is enough to grow seedlings for transplanting 1 hectare. The seedling grow at faster rate in this method.
What will be the hulling percentage in rice?
Which of the following gas is released from paddy field?
Gandhi Bug insect attack on rice crop at
Which of the following crop infested by khaira disease?
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Solution
Khaifa Disease of Rice The disease is caused by zinc deficiency. Usually appears in nursery but may appear, in patches after 10-15 days of transplanting. The veins of new leaves where brown spots are formed. On lower leaves, a large number of small, brown to bronz spots.
(1) Spray a mixture of 5kg zinc sulphate and 2.5 kg lime in 1000 litres of water after 10 day's of sowing nursery.