金沙湾乡村俱乐部海滨雀稗草坪杂草及化学控制技术研究

Weed species and their chemical control in Paspalum vaginatum cv. "Salam" at the Kingswan Countryside Club

本研究于2006-2008年在江苏金沙湾乡村俱乐部进行,明确该球场有草坪杂草29科95种,其中禾本科19种,莎草科3种,阔叶草27科73种。其中春季萌发的有50种,秋季萌发的36种,春、秋季都萌发的9种。建场初,杂草种类仍保留原生态系的痕迹,经过草坪管理特别是剪草及应用除草剂,杂草种类转为以草坪伴生杂草为优势种。田间杂草化学防除试验表明,砜嘧磺隆（Rimsulfuron,n-{[（4,6-dimethoxy-2-pyrimidinyl）amino]carbonyl}-3-（ethylsulfonyl）-2-pyridinesulfonamide）0.045-0.030 kg ai/hm^2与嗪磺隆[Chlorsulfuron,1-2-chlorophenylsulfonyl-3-（4-methoxy-1,3,5-triazin-2-yl）urea]0.020 0-0.022 8 kg ai/hm^2混配秋季在海滨雀稗应用,药后61和115 d,对禾草和阔叶草防效为65.4%-94.8%。氯吡嘧磺隆（Halosulfuron-methyl,methyl 5-{[（4,6-dimethoxy-2-pyrimidi-nyl）amino]carbonylaminosulfonyl}-3-chloro-1-methyl-1H-pyrazole-4-carboxylate）0.037 5-0.052 5 kg ai/hm^2与砜嘧磺隆0.045-0.030 kg ai/hm^2混配秋季在海滨雀稗应用,药后49和103 d,对多年生黑麦草、一年生早熟禾防效为69.4%-71.2%。砜嘧磺隆0.06 kg ai/hm^2、氯吡嘧磺隆0.067 5 kg ai/hm^2及嗪磺隆0.022 8 kg ai/hm^2对建植1年的海滨雀稗（品种：Salam）生长无影响或甚微,砜嘧磺隆0.18 kg ai/hm^2药后2-4周对海滨雀稗有可见影响,直到药后36周才恢复。

This study was conducted at the Kingswan Countryside Club between 2006 and 2008 to determine the weed species, their growth habits and life cycles. The 95 weed species found included 19 grasses, 3 sedges, and 73 broadleaved species from 29 families. Among them, 50 species only germinated in spring, 36 in the fall and the remainder in both spring and fall. During the first year of course establishment there were remnant traces of the original weed community present although more mat-forming weeds were present due to the regular cultivation practices such as mowing. Field trials showed that 65.4%-94.8% of grasses and broadleaved weeds were controlled with fall applications of Shadeout at 0. 045-0.03 kg ai/ha mixed with chlosulfuron at 0.02-0. 022 8 kg ai/ha at 61 and 115 DAA; 69.4%-71.2% of Lolium perenne （cv. citathon # 3）and Poa annua were controlled with fall applications of Battalion at 0. 045-0. 052 5 kg ai/ha and Shadeout at 0. 037 5-0.03 kg ai/ha at 49 plus 103 DAA. There was slight visible injury to Paspalum vaginatum cv. Salam at 2 WAA, of Shadeout at 0.06 kg ai/ha, Battalion at 0. 067 5 kg ai/ha and chlosulfuron at 0. 022 8 kg ai/ha with recovery at 4 WAA. There was visible injury to P. vaginatum 2-4 WAA of Shadeout at 0.18 kg ai/ha and recovery was not until 36 WAA.