1. Effect of crop residue management on nitrogen loss and balance from urea
Sakorn Phongpan, Arvin R. Mosier and Jenvith Sookthongsa

2. Effect of urease inhibitors on ammonia loss and efficiency of broadcast urea in lowland rice field
SaKorn Phongpan, Pornpimol Chaiwanakupt and Jenvith Sookthongsa

3. Improvement of mangosteen fruit sizing machine
Bundit Jarimopas, Suttiporn Niamhom and Theerayut Suwanapratheep

4. Partitioning of nutrients in young lychee trees
Nantarat Supakamnerd

5. Populations abundance of major insect pests and their predators in floating rice fields
Patchanee Chaiyawat

6. Responses of popcorn to irrigation rates ans timing of irrigation termination
Sakorn Phongpan, Arvin R. Mosier and Jenvith Sookthongsa

7. Stydy of nutrient requirement of lychee by means of plant analyses
Nantarat Supakamnerd