Evaluation of the nitrogen nutrition status of rice by plant analysis
Plant and Soil - 1972
Tóm tắt
The results of a greenhouse and a field experiment to evaluate the nitrogen nutrition status of rice indicate that: (1) first and second most recently natured leaves are sensitive indicators of the nitrogen status of plants; (2) the total nitrogen concentration in these leaves are a better indicator of the nutrient status of plants than are the water-soluble and amide-plus-ammonium nitrogen fractions; and (3) that the best correlation between plant growth and total nitrogen is obtained when these leaves are sampled at the stage of growth between maximum tillering and panicle emergence.
Từ khóa
Tài liệu tham khảo
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