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Publication Type:
| Proceedings |
Author(s): | Kaltofen, Herbert |
Author Affiliation: | Institut für Futterproduktion Paulinenaue der Akademine der Landwirtschaftswissenschaften der Deutschen Demokratischen Republik |
Title: | Relations between nitrogen supply, nitrogen content of plants, internal efficiency of nitrogen, and yield with forage grasses |
Section: | Biological fundamentals of yield formation with grasses and legumes: Plant nutrition and yield formation Other records with the "Biological fundamentals of yield formation with grasses and legumes: Plant nutrition and yield formation" Section
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Source: | International Grassland Congress, Proceedings. Vol. 1, 1977, p. 211-214. |
Publishing Information: | Zurich, Etc., V. P. |
# of Pages: | 4 |
Keywords: | TIC Keywords: Nitrogen; Nitrogen level; Nitrogen efficiency; Application rates; Nitrogen fertilization; Dry weight; Cultivar improvement; Proteins
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Abstract/Contents: | "There exists the relation y = y(x) = w(x) [N0 + q(x) x], where x = nitrogen dose, q = apparent recovery of fertilizer nitrogen, N0 = amount of nitrogen present in the harvested plant matter in case of x = 0, w = internal efficiency of nitrogen taken up, and y = dry matter yield. The possibilities for improving q by way of plant breeding are rather limited because cultivated grasses usually take up almost the entire amount of available nitrogen. On the contrary, improvement of the internal efficiency w by breeding procedures offers much better opportunities. It may occasionally be useful to combine such improvement with increased nitrogen fertilization, the more so as w is strictly in the inverse ratio to the crude protein concentration of dry matter." |
Language: | English |
References: | 4 |
Note: | Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Kaltofen, H. 1977. Relations between nitrogen supply, nitrogen content of plants, internal efficiency of nitrogen, and yield with forage grasses. p. 211-214. In International Grassland Congress, Proceedings. Zurich, Etc., V. P. |
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| MSU catalog number: SB 16 .A33 |
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