摘要
Two hybrids of maize with different responses to sulfur were used in the pool experiment. The effects of nitrogen and sulfur on the grain quality of maize were evaluated. The results indicated that grain quality changed with the nutrition supply. The contents of proteins, amino acids, soluble sugar, crude fat, oil, N, P, K, S and microelements in the grain were improved due to nitrogen and sulfur fertilizer addition. But the effects of nitrogen and sulfur were not the same. Nitrogen increased starch content of the grain, but S decreased the content. Both N and S enhanced the proportion of amylopectin in starch. Sulfur nutrition significantly improved the grain quality of maize when a large amount of nitrogen was used together. Both hybrids had similar response to N and S treatments.
Two hybrids of maize with different responses to sulfur were used in the pool experiment. The effects of nitrogen and sulfur on the grain quality of maize were evaluated. The results indicated that grain quality changed with the nutrition supply. The contents of proteins, amino acids, soluble sugar, crude fat, oil, N, P, K, S and microelements in the grain were improved due to nitrogen and sulfur fertilizer addition. But the effects of nitrogen and sulfur were not the same. Nitrogen increased starch content of the grain, but S decreased the content. Both N and S enhanced the proportion of amylopectin in starch. Sulfur nutrition significantly improved the grain quality of maize when a large amount of nitrogen was used together. Both hybrids had similar response to N and S treatments.
基金
supported by National Natural Science Foundation of China(39870525).
