Growth and yield of rice as affected by spacing,time and depth of placement of urea briquettes |
| |
Authors: | Surendra Singh Rajendra Prasad S N Sharma |
| |
Affiliation: | (1) Division of Agronomy, Indian Agricultural Research Institute, 110 012 New Delhi, India |
| |
Abstract: | A field study was conducted on a sandy clay soil (Entisol) in India to examine urea briquettes (UB) for lowland rice during 1986 and 1987. Grain yield was significantly greater for UB than a split application of prilled urea. At equal rates of N application, a spacing of 30 cm between two UBs was significantly better than 60 to 90 cm spacing. Two applications (10 DAT and at panicle initiation) of UB was no better than a single application (10 DAT). Placement of UB at 3–4 cm depth was significantly better than its surface application or placement at 0–1 cm depth. |
| |
Keywords: | rice (Oryza sativa L ) urea briquettes prilled urea deep placement |
本文献已被 SpringerLink 等数据库收录! |