• Flooding irrigation method is commonly used for: Rice.
  • Fertilizer application through irrigation is known as: Fertigation.
  • An important cultural practice in rice fields is: Puddling.
  • The power tiller is most suitable for the cultivation of: Paddy.
  • Sowing time of Aus/Autumn rice is: March – April.
  • Sowing time of Aman rice is: May – June.
  • Aman rice is also known as: Kharif/winter rice.
  • Sowing time of Boro rice is: December – January.
  • Boro rice is also known as: Summer rice.
  • P2O5% in raw bone meal is: 20-25% P2O5.
  • P2O5% in steamed bone meal is: 20-30% P2O5.
  • Sulfur % in Single Super Phosphate (S.S.P) is: 12% S.
  • Calcium % in Single Super Phosphate (S.S.P) is: 18-21% Ca.
  • Calcium % in gypsum (CaSO4·2H2O) is: 29.2% Ca.
  • Sulfur % in gypsum is: 18.6% S.
  • Top sickness of tobacco occurs due to: B deficiency.
  • Beneficial elements are: Co, Si, Na, Ni, Va.
  • Ni and Co are most useful for which crops? Legumes.
  • Father of hybrid cotton is: C.T. Patel.
  • The first hybrid of rice was developed by: Y.L. Ping (China).
  • The first transgenic plant was developed by: Fraley (1983) in tobacco.
  • The laws of heredity were first discovered by: Mendel.
  • Often cross-pollinated crops are: Cotton, sorghum, pea.
  • The concept of pure line theory was developed by: Johansen.
  • The term heterosis was coined by: Shull.
  • Jagannath is a mutant variety of: Rice.
  • The vector of grassy stunt disease is: Brown plant hopper (Nilaparvata spp.).
  • Chaffy grains with black spots are due to: Gundhi bug (Leptocoris spp.).
  • The family of Gundhi bug is: Alydidae.
  • Gundhi bug causes damage at which stage? Milking stage.
  • Horizontal flow of water in a channel is called: Seepage.
  • Vertical movement of water in soil is known as: Percolation.
  • PF value was first introduced by: Schofield.
  • In saline soil, the method used for irrigation is: Flood method.
  • The arrangement of soil particles and their aggregates into certain defined forms is called: Soil structure.
  • Soils which are unsuitable for sugarcane are: Saline soils.
  • Best soil for groundnut cultivation is: Sandy soil.
  • ‘O’ horizon is absent in: Arable soils.
  • Topmost mineral horizon is: ‘A’ horizon.
  • The formula for porosity of soil is: Porosity = 100 - (Bulk density / Particle density).
  • Portion of capillary water lying between field capacity (1/3 atm) and wilting coefficient (15 atm) is known as: Available water.
  • Recently formed soil order is: Entisols.
  • Total pore space is highest in: Clay soils.
  • Mechanical analysis of soils separation is done by: Hydrometric method.
  • The best soil for the cultivation of cotton is: Black cotton soil.
  • Maximum eluviation horizon is seen in horizon: E horizon.
  • Illuviation horizon is: B horizon.
  • The soils which are most suitable for most crops are: Sandy loams.
  • Physical property which can’t be changed is: Soil texture.
  • Particles more than 250 mm in diameter are known as: Stones.
  • Diameter of coarse sand particles is: 0.2 – 2 mm.
  • Diameter of fine sand particles is: 0.02 – 0.2 mm.
  • Diameter of silt particles is: 0.02 – 0.002 mm.
  • Diameter of clay particles is: Less than 0.002 mm.
  • The water held up to the tension of about 31 atm is known as: Hygroscopic coefficient.
  • Kaolinite is a type of mineral: 1:1 type.
  • Montmorillonite is a type of mineral: 2:1 type expanding mineral.
  • Vermiculite is a type of mineral: Limited expanding 2:1 type mineral.
  • Micas are a type of mineral: Non-expanding type mineral.
  • Chlorites are a type of mineral: 2:1:1 type mineral.
  • Chemical formula of gypsum is: CaSO₄ · 2H₂O.
  • The formula for determining age by rings on horns is: Number of Rings + 2.
  • Keratin are proteins of: Hairs.
  • Cattle belong to the phylum: Chordata.
  • Fruits are blanched before canning at: 80ºC.
  • Indian dairy corporation was established in: Gujarat.
  • The pH of saline soil is: < 8.5.
  • In India, artificial insemination was started for the first time by: Dr. Sampat Kumar.
  • EDS76 is: Adenovirus.
  • Fat content of milk from Tharaparkar cow is: 4.60%.
  • Dolomite is rich in: Magnesium (Mg).
  • DCP content of Guinea grass is: 1%.
  • A lactometer works on the principle of: Archimedes.
  • Zoological name of buffalo is: Bos bubalis.
  • The pH value of milk is: 6.6
  • The domestic chicken is originated from: Red jungle fowl.
  • In which portion of milk from the udder is bacteria content highest? Fore milk.
  • The AMUL system of milk marketing follows the principle of: Cooperative.
  • Marek’s disease in poultry is caused by: Virus.
  • Maize fodder (green) comes under which grade in quality? Poor.
  • Which breed of goat is called the ‘Milk Queen’ of the goat world? Saanen.
  • The optimum time to inseminate a cow during estrous is: Mild estrous.
  • Incubation period of chicken egg is: 21 days.
  • The best breed to use as a male line in broiler production is: Cornish.
  • The disease Rickets in animals occurs due to the deficiency of: Vitamin D.
  • Maximum losses of nitrogen in rice crop are due to: Denitrification.
  • DCP percent is highest in: Berseem hay.
  • C N ratio in FYM is: 40:1.
  • What is the most suitable temperature for absorption of water by root hairs? 20‑35ºC.
  • From which institution do agriculturists get maximum credit? Commercial bank.