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131.

For each unit increase in pH, the concentration of Mn2- decreases by _____ folds:

A.	50	B.	100
C.	150	D.	200

132.

For fibre purposes, jute crop may be harvested at my time:

A.	After pod formation	B.	After flowering
C.	Before flowering	D.	Before pod formation

133.

For harvest of sugarcane the brix ratio of the lower and above portion of the stem should be:

A.	0.2 - 0.3	B.	0.5 - 0.6
C.	0.7 - 0.8	D.	0.9 - 1.0

134.

Which one of the following is the principal 'N' fixing algal community of blue-green algae?

A.	Rhizobium	B.	Anabaena
C.	Azotobactor	D.	Azospirillum

135.

Which one of the following is not a dicot weed?

A.	Phyllanthus niruri	B.	Chenopodium purale
C.	Chenopodium album	D.	Cyprus rotundus

136.

For more effective weed control in soyabean fluchloralin should be used as:

A.	Pre-emergence	B.	Post emergence
C.	Early post emergence	D.	Pre-plant soil incorporation

137.

For mungbean the period between _____ days after sowing has been regarded as critical for weed control:

A.	10 and 30	B.	5 and 25
C.	15 and 40	D.	25 and 45

138.

For nitrogen and phosphorus application in groundnut _____ fertilizers are normally preferred:

A.	Urea and single superphosphate	B.	Ammonium sulphate and single super phosphate
C.	Urea and diammonium phosphate	D.	Ammonium sulphate and diammonium phosphate

139.

For raising a healthy nursery of tobacco on highly leached soils, besides other nutrients, borax are _____ g/m2 is also n recommended:

A.	0.4 - 0.5	B.	0.6 - 0.7
C.	0.1 - 0.2	D.	0.3 - 0.4

140.

For spring crop of soyabean seed should be than that of kharif planting:

A.	More	B.	Less
C.	Similar	D.	Double