期刊论文

中文

干旱地区农业研究

1000-7601

2008

26

5

36-40,46

国家十五攻关项目子专题（2001BA507A）

本校为第一机构

节水条件下,采用田间小区试验研究“氮中量施肥法”（N,P_2O_5,K_2O施用量分别为190,90,100kg/hm~2）、“氮高量施肥法”（N,P_2O_5,K_2O为210,90,100 kg/hm~2）、“氮低量施肥法”（N,P_2O_5,K_2O为170,90,100kg/hm~2）对饲料稻威优198蔗糖磷酸合成酶（SPS）、蔗糖合成酶（SUS）、腺苷二磷酸葡萄糖焦磷酸化酶（ADPase）活性、光合特性以及产量的影响。结果表明,氮中量施肥法处理水稻旗叶和粒籽中的SPS、SUS、ADPase活性较高;旗叶净光合作用速率较快;叶和籽粒中蔗糖含量较高,蔗糖转化成淀粉的能力较强。氮中量施肥法处理能显著增加水稻的有效穗和籽粒产量,有效穗分别比氮高量栽培法和氮低量施肥...

Field experiment combining with laboratory analysis were conducted to study the effects of three different nitrogen ratio fertilizer methods（medium nitrogen ratio fertilizer method—the ratio of N,P2O5,K2O is 190,90,100 kg/hm^2,high nitrogen ratio fertilizer method—N,P2O5,K2O is 210,90, 100 kg/hm^2 and low nitrogen ratio fertilizer method—N,P2O5,K2O is 170,90,100 kg/hm^2） on key enzymes activities of carbon metabolism and forage rice（Weiyou 198） yield under water-saving condition in 2003 in Changsha city.The results showed that,the activi...