共 50 条
- [1] ECONOMICS OF CROP PRODUCTION OF DIFFERENT CROPPING INTENSITIES [J]. INDIAN JOURNAL OF AGRICULTURAL SCIENCES, 1976, 46 (02): : 93 - 96
- [3] Dry matter production and nutrient uptake (NPK) in a tuber crop based cropping system under upland rice situations [J]. TROPICAL TUBER CROPS: PROBLEMS, PROSPECTS AND FUTURE STRATEGIES, 1996, : 200 - 206