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小暑至,夏繁盛│农事活动田间管理忙

2021-07-07 15:04:20 来源:农机网整理发布 阅读量:36480 评论

导读:小暑前后,除东北与西北地区收割冬、春小麦等作物外,农业生产上主要是忙着田间管理了。

  【农机网 热点关注】 今天是农历二十四节气的第十一个节气——小暑,表示夏季时节的正式开始。暑,表示炎热的意思,小暑为小热,意指天气开始炎热,但还没到最热。小暑虽不是一年中最炎热的时节,但紧接着就是一年中最热的大暑,民间有“小暑大暑,上蒸下煮”之说,天气也将越来闷热和潮湿。
 
  从小暑节气开始,长江中下游地区的梅雨季节先后结束,东部淮河、秦岭一线以北的广大北方地区开始了来自太平洋的东南季风雨季,自此降水明显增加,且雨量比较集中;华南、西南、青藏高原也处于来自印度洋和中国南海的西南季风雨季中;而长江中下游地区则一般为副热带高压控制下的高温少雨天气,常常出现的伏旱对农业生产影响很大,及早蓄水防旱在此时显得十分重要。
 

  小暑前后,除东北与西北地区收割冬、春小麦等作物外,农业生产上主要是忙着田间管理了。
 
  农事活动指南
 
  1、稻谷此时早稻处于灌浆的后期,早熟品种一般在大暑前就要成熟收获,要保持田间干干湿湿。中稻已拔节,开始进入孕穗期,农户们应当要根据水稻的长势来追施穗肥,这样促穗大粒多。此时单季晚稻正在分蘖,要及时施好分蘖肥。双晚秧苗要注意及时防治病虫害,在栽秧前的5-7天左右施足“送嫁肥”。
 
  2、棉花此时大部分的棉花产区已经开始开花结铃,而且生长最为旺盛,在重施花铃肥的同时,还要及时的整枝、打杈、去老叶,以协调棉花植株体内养分的分配,增强通风透光,改善群体小气候,减少蕾铃的脱落。
 
  3、玉米降水增加,会引起玉米倒伏,建议南方地区的朋友做好抗旱排涝等工作,而北方地区则重点注意山洪暴发、石流等地质灾害,一定要做好相关的预防工作,减轻危害。
 
  4、蔬菜小暑时节,瓜菜类需肥较多,因此要施足底肥,主要以有机肥为主。尤其是在幼苗期、开花期、成熟期和果实第一批采收后,都要进行分次追肥了,并且要做到氮磷钾以及钙锌铁等微量元素相结合施用。
 
  5、瓜类水果小暑时节,大多数大棚瓜类水果基本已经七八成熟,因此需要进行远途运输上市销售的瓜菜,应该及时的进行采收,提早上市,缩短“伏缺”时间,增加经济收入。
 
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