Urea briquette applicator for transplanted rice

@article{Savant1991UreaBA,
  title={Urea briquette applicator for transplanted rice},
  author={Narayan Krishnarao. Savant and P. S. Ongkingco and I. V. Zarate and F. M. Torrizo and Paul J. Stangel},
  journal={Fertilizer research},
  year={1991},
  volume={28},
  pages={323-331}
}
A plunger-type, completely hand-operated applicator prototype, made of polyvinyl chloride (PVC), for deep placement of urea briquettes (UB), i.e., pillow-shaped urea supergranules with edges, in line transplanted rice has been developed for use by small-scale rice farmers. The field evaluation of the applicator was conducted in the Philippines during the 1989 dry season. The applicator consistently placed UB at proper depth (7 to 8 cm), which resulted in low concentrations of urea N (<7 ppm) in… CONTINUE READING

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