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今年由于气候条件的影响,春季气温低,4月中下旬和5月份气温明显低于历年,特别是5月份气温比历年低3.5℃,比去年低3.1℃,再加上5月5日和11日的两次霜冻,致使棉苗受害,部分严重的受冻致死,导致重播,使棉花生育期大大延迟,据调查今年棉花生育期比历年晚12～15天左右.进入7月,降水量明显增加,据气象部门统计,今年7月份降水量比去年多50%,比历年多近70%,加上部分单位前期化控抓得不好,中期整枝功夫不够,使棉株旺长,棉田郁蔽.为此,一些团场领导担心后期棉铃不能正常吐絮、购进大量乙烯利,准备在棉花上使用,下面就乙烯利在棉田使用应注意的一些问题谈谈看法,以供参考.
Due to the impact of climatic conditions this year, the temperature in spring is low, the temperature in mid-late and late May and in May is obviously lower than the historical average. In particular, the temperature in May is 3.5 ℃ lower than previous years and 3.1 ℃ lower than last year. In addition, on May 5 and November 11, Japan’s two frosts, resulting in cotton seedlings victims, part of the serious cold death, leading to replay, greatly delayed the growth period of cotton, polo ralph lauren, according to the survey this year cotton growth period than the calendar year 12 to 15 days or so into the July, the precipitation was significantly According to statistics from the meteorological department, precipitation in July this year was 50% more than last year and nearly 70% more than in previous years. Coupled with the poor control of some units in the early stage of control, To this end, some leaders of the field are worried about the latter part of bollworm bolus can not be normal, buy a lot of ethephon, ready to use on cotton, the following on the use of ethylene in cotton fields should pay attention to talk about some of the views for reference.