472-479 Oct contact 2006 Effect of soil hardness on the growth and yield of supernodulating soybean [Glycine max] cultivar Sakukei 4 under field conditions Shimamura, S. 2007001284 Japanese Journal of contact Crop Science (Japan) 0011-1848 v. The contact results indicated that high yields of new winter triticale cultivars were due to a combination of the high efficiency of nitrogen uptake for leaf expansion, which is the characteristic of rye, and the high nitrogen allocation to the leaf blade during the grain filling period, which is the characteristic of wheat. On the other hand, the differences in MLAI between triticale and rye were due to the differences in the nitrogen allocation to the leaf blade at the milk-ripe stage, which resulted from the differences contact in the nitrogen concentration of the leaf blade per unit nitrogen uptake (delta LNC/ delta N).
The differences in MLAI between triticale and wheat were attributed to the differences in the leaf contact blade dry-weight per unit nitrogen uptake (delta LW/ delta N) at the milk-ripe stage. The differences in delta G/ delta FN among the three crops contact were due to the differences in mean leaf area index (MLAI) during the grain filling period. In contact each of the 4 years G and delta G/ delta FN of triticale were higher than those of wheat and rye. The efficiency of nitrogen fertilization (the increase of grain yield (G) per unit nitrogen fertilizer (FN) applied at the regrowing stage, delta G/ delta FN) of high yielding winter triticale cultivar 'Presto' was analyzed in comparison with that of Japanese wheat cultivar contact 'Hokushin' and Polish rye cultivar 'Warko' in the field from 1997 to 2000.