Table 2 Location (State, latitude (Lat.), and longitude (Long.)), soil characteristics (soil type, pH (1:2.5), available phosphorus (P), and soil organic matter (SOM) at 0–20 cm soil depth), and crop management (variety, maturity group, seeding rate, row spacing, previous crop, and tillage system) in 11 soybean environments (Env.).
Env. | Location | Soil characteristics | Crop management | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
State§ | Lat. | Long. | Soil type | pH | P (mg kg−1) | SOM (g kg−1) | Variety | Maturity group | Planting date | Seeding rate (seeds ha−1) | Row spacing (m) | Previous crop | Tillage system | |
IN1 | IN | 40.4965 | −86.9995 | Typic Endoaquoll | 6.4 | 34.6 | 34 | AG24X7 | 2 | 24-May | 345,800 | 0.38 | corn | conventional |
IN2 | IN | 40.4965 | −86.9995 | Typic Endoaquoll | 6.4 | 34.6 | 34 | AG34X6 | 3 | 24-May | 345,800 | 0.38 | corn | conventional |
IN3 | IN | 41.4481 | −86.9416 | Typic Argiaquoll | 6.2 | 31.8 | 37 | AG24X7 | 2 | 25-May | 345,800 | 0.38 | corn | conventional |
IN4 | IN | 41.4481 | −86.9416 | Typic Argiaquoll | 6.2 | 31.8 | 37 | AG34X6 | 3 | 25-May | 345,800 | 0.38 | corn | conventional |
KS1 | KS | 39.1369 | −96.6185 | Fluventic Hapludoll | 6.1 | 52.6 | 22 | AG30X8 | 3 | 27-Apr | 444,600 | 0.76 | soybean | conventional |
KS2 | KS | 39.1369 | −96.6185 | Fluventic Hapludoll | 6.1 | 52.6 | 22 | AG45X6 | 4 | 27-Apr | 444,600 | 0.76 | soybean | conventional |
KS3 | KS | 38.538 | −95.2401 | Abruptic Argiaquoll | 6.1 | 13.7 | 40 | AG30X8 | 3 | 10-May | 370,500 | 0.76 | corn | no-till |
KS4 | KS | 38.538 | −95.2401 | Abruptic Argiaquoll | 6.1 | 13.7 | 40 | AG45X6 | 4 | 10-May | 370,500 | 0.76 | corn | no-till |
MN | MN | 44.9942 | −93.1731 | Typic Hapludoll | 6.2 | 16.4 | 36 | AG14X7 | 1 | 11-May | 346,000 | 0.76 | corn | conventional |
SD1 | SD | 44.3472 | −96.7714 | Aeric Calciaquoll | 6.9 | 32.3 | 47 | AG24X7 | 2 | 18-May | 346,000 | 0.76 | corn | conventional |
SD2 | SD | 44.3472 | −96.7714 | Aeric Calciaquoll | 6.9 | 32.3 | 47 | AG11X8 | 1 | 18-May | 346,000 | 0.76 | corn | conventional |
