21.
The slow growing species of legume root nodule bacteria are included in bacterial genus

22.
Which of the following micronutrients are most widely deficient in Indian soils?

23.
The principal way in which P and K ions move from the soil to the root of field crops

24.
If the gravimetric moisture content of soil is 15% and the bulk density is 1.4 gram/cubic centimeter, the volumetric moisture content is

25.
The plateau with little growth rate and continuing accumulation of nutrient element in the plants can be defined as

26.
Cultivation of hybrid rice is most popular in

27.
Which of the followings is a pulse?

28.
For maintaining the quality of fibre, jute should be harvested

29.
In Post Green Revolution Era, we have experienced

30.
In wet season, the initiation of panicle primordia in rice variety of 120 days duration takes place in

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