Agriculture MCQs

Page No. 155

Pulling of off- type plants from a cropped field is called___________________?


aRouging


bWeeding


cPruning


dNone of the above


View Answer Rouging

The living together of two or more species in a prolonged and intimate ecological relationship is called________________?


aSymbiosis


bBiosystem


cAuto environment


dClimate


View Answer Symbiosis

Weedicides that kill the foliage of weeds by direct contact are as________________?


aTrifluration


bParaquet


cBromoxy nil


dLoxy nil


View Answer Paraquet

Soil water in excess of hygroscopic and capillary water which moves downward through the soil by the force of gravity is called______________?


aCapillary water


bSub-surface water


cGravitational water


dRun off water


View Answer Gravitational water

The application of fertilizer nutrients in proportions best suited to the needs of the crop is called_________________?


afertilizer placement


bFertilizer use efficiency


cNitrogen use efficiency


dBalanced fertilization



The total dry matter produced by a plant as a result of photosynthesis is called_________________?


aBiological yield


bHarvest index


cDry matter


dCrop growth


View Answer Biological yield

The heating of atmosphere by gases that are transparent to sun light but opaque to radiated heat is called________________?


aGreen house effect


bPollution


cWarming


dSolar radiation


View Answer Green house effect

The depth of water required by crops during the base period is called_____________________?


aFrequency of water


bAcre inch


cDuty of water


dDelta of water


View Answer Delta of water

Major source of sugar in world is_________________?


aDates


bBeet root


cWater melon


dSugarcane


View Answer Beet root

An example of monocot fiber yielding plant is_________________?


aCocos


bClemates


cCorchorus


dCrotalaria


View Answer Cocos

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