New Agronomy One Liners(13)

New Agronomy One LinersNew Agronomy One Liners

New Agronomy One Liners

Question Answer
Nursery area required for transplanted rice is? 10% of total area
Age of seedling at transplanting in SRI is.?  14
Gall midge resistance rice variety? Shakti & vikram
Which is a beneficial element for rice? Silicon
Lunishree is a variety of? Super rice
First variety of rice introduced in India is? TN-1 (1964-65)
During submergence in Rice field? Fe availability increases
Rice – Wheat – Rice – Wheat, rotational intensity ( year)?  200%
Cropping intensity will be always 100% in?  Mono cropping
Gravitational water potential is? < 1/3 bar
Hygroscopic water potential is? > 31 bar
Rainy day is called when?  >2.5 mm/day.
Available water potential is? 1/3 to 15 bar
Capillary water potential is? 1/3 to 31 bar
Critical limit for nitrate in water?  10 PPM
What has the highest irrigation efficiency?  Drip
The ratio between the irrigated area and the volume of water used is known as?  Duty of water

Question Answer
Water logged soil, availability of fallowing increases?  Fe, Mn, P.
The irrigation method which is suitable for saline soils is? Flood method
Excessive tillage reduces? Infiltration
Unit of WUE?  Kg/ha-mm
Poor quality irrigation water is not suitable for use in? Sprinkler
Soil moisture tension directly measured by? Tensiometer
Highly leached and matured soil is?  Ultisols
In Zero tillage the surface soil have?  High B.D.
Conservation tillage minimum _% of residue?  45%
Mass flow is affected by? Transpiration
Alley Cropping is? Agroforestry system
Contribution of flag leaf in photosynthates is about?  52%
Solar constant?  1.94 cal/cm²/min.
Nautical mile is?  1.8 km/hr

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