Crop rotation means growing ____?
A. Same craps
B. Growing green manures
C. Growing different crops
D. Growing fodder crops
Plants which grow on dry region are ______?
A. Xerophytes
B. Thermophytes
C. Hydrophytes
D. Haplophytes
Allclopatluc interactions in general and the allelochemicals in particular are viewed as an important tool for ___?
A. Pest and insect management
B. Disease and pest management
C. Weed and pest management
D. non of these
Allelopathy is an important component in the development of future integrated strategies for ___?
A. Soil management
B. Weed management
C. Water management
D. non of these
Annual rye grass releases a chemical through its root that prevents _____?
A. Crop seeds
B. weed seed
C. Both a and b
D. non of these
Effects of allelopathic compound in the life cycle of plants cause inhibition of ______?
A. Seed deterioration
B. seed germination
C. Seed swelling
D. non of these
Raising of only one crop in a year, when there is seasonal supply of water is called ___?
A. Monocropping
B. Monoculture
C. Specialized farming
D. Intensive cropping
Root rot of cotton is a ______?
A. Bacterial disease
B. Viral disease
C. Fungal disease
Main reason behind the shedding of flower in cotton is ______?
A. Low temperature
B. High temperature
C. Humidity
D. Cloudy day
Indus river is one of the longest river of Asia measuring about ______?
A. 3000 Km
B. 2500 Km
C. 2900 Km
D. 3200 Km
