TY  - BOOK
AU  - Delorit,Richard J.
AU  - Ahlgren,Henry Lawrence
TI  - Crop production
T2  - Prentice-Hall vocational agriculture series
U1  - 633 
PY  - 1967///]
CY  - Englewood Cliffs, N.J
PB  - Prentice-Hall
KW  - Field crops
N1  - Agriculture, man and plants;            
Growth and reproduction;
Corn;
Wheat;
Oats;
Barley;
Rye;
Sorghums;
Millets;
Flax;
Buckwheat;
Potatoes;
The true clovers;
Alfalfa;
Sweetclover;
Birdsfoot trefoil;
Lespedeza;
Soybeans;
Field peas;
Cowpeas;
Perennial forage grasses;
Pastures;
Haymaking;
Grass silage;
Weeds;
Crop rotation and green manuring;
Improvement of plants

ER  -