Explore Books on
long term experiments
1-2 of 2 Books
View A study of the value of crop rotation in relation to soil productivity By Weir, Wilbert Walter 
A study of the value of crop rotation in relation to soil productivity
By Weir, Wilbert Walter
View Effects of irrigation on corn, sorghum, and soybean in the Mississippi River alluvial plain By R.A. Wesley 
Effects of irrigation on corn, sorghum, and soybean in the Mississippi River alluvial plain
By R.A. Wesley