CONTENTS ' ' ' 



' t ' , '" > ' ' PAGE 



The crop survey as a method of research ....'.','. .'.'. . ; , ... , . .'./. ' J; .,.;. \ . '. - 1145 



Biometry as applied to crop-survey data '..'.' 1147 



The taking cf records ' 1147 



Description of regions surveyed 1148 



Long Island 1149 



Steuben County ..:..- 1153 



Monroe County 1154 



Franklin and Clinton Counties 1155 



Method of studying survey data 1156 



The study of factors 1157 



Climate 1157 



Elevation 1159 



Crop rotation 1162 



Value of land. . . . '. 1166 



Soil ' 1169 



Plowing , 1171 



Time of plowing 1171 



Depth of plowing . 1173 



Manure and fertilizer 1177 



Home-mixed fertilizers 1179 



Quantity and value of fertilizer 1180 



Manure and fertilizer used in the four regions 1182 



Analysis of fertilizer 1188 



Method of applying fertilizer 1191 



Use and influence of lime on potato land 1196 



Adaptation and yield of varieties 1197 



Source of seed .' 1205 



Sun-sprouting of seed 1208 



Chemical treatment of seed 1210 



Interval between cutting and planting. 1211 



Dusting cut seed 1214 



Type of seed 1215 



Large as compared with small tubers for seed 1215 



Whole as compared with cut seed 1216 



Large as compared with small seed pieces 1217 



Number of eyes 1220 



Types of seed used in the four regions surveyed . . 1221 



Relation of amount of seed to yield 1224 



Date of planting 1231 



Hand as compared with machine planting t 1232 



Checkrow as compared with drill planting 1234 



Depth of planting 1237 



Depth of cultivation ; 1242 



Ridge as compared with level culture 1244 



Frequency of cultivation .' . 1246 



Spraying . 1255 



Relation of date of harvest to yield 1263 



Method of harvesting in the four regions surveyed 1265 



Types of storage in the four regions surveyed 1269 



Length of storage period 1269 



Summary 1270 



Conclusions 1272 



Author's acknowledgment 1273 



Bibliography 1274 



Survey blank 1280 



1139 



