He said that while soils in most cotton growing regions are inherently fertile, increased cropping intensity and high yields will progressively undermine the natural fertility.
(soils in most cotton growing regions; are; inherently fertile) (He; said; that while soils in most cotton growing regions are inherently fertile, increased cropping intensity and high yields)
soils in most cotton growing regions He
are said
inherently fertile
that while soils in most cotton growing regions are inherently fertile, increased cropping intensity and high yields