In order to select safe and effective agents to control malignant weeds of sugarcane, especially Cyperus rotundus, efficacy trials were conducted in sugarcane field using 75% chlorine pyrazosulfuron-ethyl. The results show that, 75%halosulfuron-methyl can be applied to control Cyperus rotundus, broad-leaved weeds and weeds in Cyperaceae. 75%halosulfuron-methyl has special effect on Cyperus rotundus, and can kill its roots and tubers and therefore the effect can be lasted to the next crop. The combined application of 75%halosulfuron-methyl (NC-319) and 55% Jia-Mie-Di (a mixed herbicide of diuron, methoxone and ametryn) can kill most weeds in cane fields with good effect.

<正>随着种业市场的进一步开放,市场竞争也越来越激烈,品种选育也逐渐成为各种子企业和科研院所的首要工作。杂交水稻的生育特性决定了其品种选育是一个漫长而又复杂的过程,在选育过程中如果没有注重或者忽略了一些重要的技术要点和环节,选育结果往往与我们的选育初衷背道而驰,因此水稻品种选育技术要点的掌握就显得尤为重要,特别是新近毕业和

Results of the 8th national sugarcane variety trial in Chongzuo of Guangxi from 2011 to 2012 showed that Yunzhe 06-407 and Funong 02-5707 performed well.The performance of other varieties is not satisfactory in the 12 testing varieties.Cane yield of Yunzhe06-407(both new-plant and ratoon) were the highest,with good agronomic characteristics,good ratoon germination,but presented lower cane sucrose.Funong 02-5707 showed good agronomic characteristics,good technical characteristics,good ratoon germination,high and stable cane yield,the sugar yield was higher than ROC22(CK1) and ROC16(CK2) by 0.15% and 1.56%(absolute value).

施用新型低毒药剂3.6%广谱型杀虫双GR防治甘蔗螟虫,试验结果表明,该药剂对甘蔗螟虫具有良好的防治效果,分别在甘蔗苗期和在甘蔗生长后期用药1次对螟虫的防治都表现出较好的防效,防效达到54.3%以上,较当地蔗农防治甘蔗螟虫惯用药剂3%呋喃丹GR防治效果好,可作为高效低毒新型药剂在蔗区推广使用。

<正>2000年12月1日实施的《中华人民共和国种子法》规定:"主要农作物品种在推广应用前应当通过国家级或者省级审定,应当审定的农作物品种未经审通过的,不得发布广告,不得经营推广"。由此可见农作物品种审定的