| 401 | |
| 402 | Effect of NPK fertilization and sowing time on the growth and physiology of hybrid maize |
| Language: | English |
| 403 | |
| 404 | |
| Language: | English |
| 405 | |
| 406 | |
| Language: | English |
| 407 | Studies on residual effect of phosphorus in multiple cropping sequence |
| 408 | Studies with 32P on phosphorus utilization by maize and wheat in sequence |
| Language: | English |
| 409 | Studies on nitrogen and phosphorus fertility investigation in maize wheat rotation |
| 410 | |
| Language: | English |
| 411 | |
| 412 | Fertility levels and differentials in Greater Tehran (Iran). |
| Language: | English |
| 413 | Effect of planting dates, spacing and NPK fertilization on sesame |
| 414 | |
| Language: | English |
| 415 | |
| 416 | Response of dwarf indica rice varieties to varying fertility level and top dressing of nitrogen |
| Language: | English |
| 417 | |
| 418 | |
| Language: | Hindi |
| 419 | |
| 420 | |
| Language: | English |