Treatment | Rate (kg ai/ha) | Hilling (WAP) | Average potato tuber number (tubers/ha) | |||||
Marketable | Non-marketable | Total | ||||||
Check | 0 | - | 13,572 | d | 172,143 | a | 185,714 | a |
Hand Weeding | 0 | - | 98,571 | ab | 237,857 | a | 336,429 | b |
Metribuzin (M) | 0.35 | - | 96,429 | ab | 178,571 | a | 275,000 | ab |
M | 0.56 | - | 116,429 | a | 150,714 | a | 267,143 | ab |
M | 0.75 | - | 82,857 | abc | 131,429 | a | 214,286 | ab |
M | 0 | 6 | 58,572 | abcd | 152,143 | a | 210,714 | ab |
M | 0.35 | 6 | 104,286 | a | 191,429 | a | 295,714 | ab |
M | 0.56 | 6 | 106,429 | a | 180,714 | a | 287,143 | ab |
M | 0.75 | 6 | 106,429 | a | 147,857 | a | 254,286 | ab |
M | 0 | 7 | 27,143 | cd | 167,857 | a | 195,000 | ab |
M | 0.35 | 7 | 70,715 | abcd | 185,714 | a | 256,429 | ab |
M | 0.56 | 7 | 89,286 | abc | 170,714 | a | 260,000 | ab |
M | 0.75 | 7 | 108,572 | a | 188,571 | a | 297,143 | ab |
M | 0 | 8 | 35,000 | bcd | 195,714 | a | 230,714 | ab |
M | 0.35 | 8 | 96,429 | ab | 182,143 | a | 278,571 | ab |
M | 0.56 | 8 | 126,428 | a | 157,857 | a | 284,286 | ab |
M | 0.75 | 8 | 94,286 | abc | 170,714 | a | 265,000 | ab |