>
#b
,
#c
,
#agriculture
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#a
,
#d
>
Why are the national average yield of major cereals very low compare to the international yield level
A) low soil fertility
B)low fertilizer use
C)low irrigation
D) All of the above
?
Why are the national average yield of major cereals very low compare to the international yield level
A) low soil fertility
B)low fertilizer use
C)low irrigation
D) All of the above
?