1. Studies on dry matter production in com;Akiyama,1975
2. Studies on response to nitrogen of rice plant as affected by difference in plant type between Thai native and improved varieties;Akiyama,1972
3. Photosynthesis and crop production systems;Army,1967
4. A comparison of three ultrasonic machines (Scanogram, Danscan and AIDD (NZ)) and visual estimates for predicting carcass composition of live cattle;Bass;J. Agric. Sci., Cambridge,1982
5. Developing systems for measuring tillage depth;Buckingham;Implement Tractor,1982