Question: Cultivation of same crop year after year is called________________?

• 1. Single cropping
• 2. Monocropping
• 3. Double, cropping
• 4. All the above

Question: Highly decomposed stage of organic matter is called_______________?

• 1. Cellulose
• 2. Organic acid
• 3. Humus
• 4. All the above

Question: Narcotic crops mainly grown in Pakistan is_________________?

• 1. Pyrethrum
• 2. Cocon
• 3. Tobacco
• 4. Co see

Question: Partially decomposed organic matter is termed as___________________?

• 1. Humus
• 2. Farm yard manure
• 3. Composet
• 4. All the above

Question: the layer of atmosphere which blocks ultraviolet radiation from sun is___________________?

• 1. Stratosphere
• 2. Ozone
• 3. Ozosphere
• 4. All the above

Question: Due to phosphorus deficiency in plants____________________?

• 1. Roots do not develop properly
• 2. Plants mature late
• 3. Poor flowering and fruil selling occurs
• 4. All the above

Question: The condition of drying of plant parts due to lack of water is called__________________?

• 1. Water stress
• 2. Drought
• 3. Wilting
• 4. None of the above

Question: Generally field crops are cultivated at altitude__________________?

• 1. 20004000 ft
• 2. 0008000 ft
• 3. 1200014000 ft
• 4. 02000 ft

Question: Plants uptake their nutrients from____________________?

• 1. Air
• 2. Water
• 3. So
• 4. All the above

Question: The depth of irrigation water required for the full crop period is called_________?

• 1. Delta of water
• 2. Water required
• 3. Crop water required
• 4. None of these