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今日大暑│萬物生長旺 田間農(nóng)事忙

2024-07-22 13:49:53 來源:農(nóng)機網(wǎng)整理發(fā)布 閱讀量:32585 評論

導讀:“大暑”前后是一年中溫度最高的時間,農(nóng)作物生長也最快。

  【農(nóng)機網(wǎng) 熱點關注】 大暑,是二十四節(jié)氣中的第十二個節(jié)氣,也是夏季最后一個節(jié)氣。“暑”是炎熱的意思,大暑,指炎熱之極。
 
  “大暑”前后是一年中溫度最高的時間,農(nóng)作物生長也最快。我國的降水主要集中在夏季,尤其是大暑節(jié)氣,高溫酷熱、雨量充沛,是萬物狂長的時節(jié)。在高溫季節(jié),農(nóng)作物生長旺盛,需要大量水分,而夏季正是中國降水最多、最集中的季節(jié),高溫期與多雨期一致,水熱搭配好,對農(nóng)作物的生長十分有利。
 
  此時既是農(nóng)業(yè)生長旺季,同時又是病蟲害滋生蔓延和氣象災害頻繁的時期。所以在農(nóng)事活動上既要加快步伐,爭取足夠的營養(yǎng)生長期,又要注意躲避“秋寒”的危害,安全地追求作物高產(chǎn)。
 
圖片來源:千圖網(wǎng)
 
  農(nóng)作物方面,在大暑時節(jié),要根據(jù)天氣的變化靈活安排水稻的農(nóng)事活動,晴天多割,陰天多栽。種植雙季稻的地區(qū)要適時收獲早稻,注意減少后期風雨造成的危害,確保豐產(chǎn)豐收。而且可使雙晚適時栽插,爭取足夠的生長期。此外,還要做好秋播作物種子、物資準備,立秋前搶播秋玉米、秋大豆等秋播糧食作物。
 
  蔬菜方面,大暑后可以露地分批陸續(xù)播種莧菜、木菜、空心菜、香菜等耐熱的葉類蔬菜。高溫干旱地區(qū)需要注意給蔬菜及時補足水分,降水多的地方則要防范爛根現(xiàn)象。此時,秋冬茬日光溫室種植的茄果類作物正值播種適期,要注意選好育苗場所,做好種子消毒和處理工作,并注意開展蔬菜的防澇害相關工作。
 
  茶園方面,要做好茶園覆蓋、遮蔭。利用作物桔桿、山草、綠肥等材料覆蓋茶園行間土壤,減少水份蒸發(fā),保持土壤濕度。每畝茶園鋪2000公斤左右稻草或山雜草,以鋪草后不見土為原則,厚度為8—10厘米之間,其作用是抑制雜草生長,抗旱保濕,有利于土壤有益微生物繁殖,熟化土壤,提高肥力;有條件的平地、緩坡茶園可采用遮蔭網(wǎng)遮蔭,以離地1.8-2.0米搭架,高出茶樹蓬面50-60厘米為宜,方便茶園管理和采摘。 還要做好茶園灌溉,水源充足且有條件進行灌溉的茶園,利用灌溉補水兼降溫,抗旱防旱直接且有效??稍谇宄?、傍晚進行噴灌、滴灌、澆灌。
 
  畜牧養(yǎng)殖方面,要定期對養(yǎng)殖場及周邊環(huán)境進行消毒,嚴格限制車輛和人員進出養(yǎng)殖場,必須經(jīng)過嚴格的消毒處理方可進入;要做好畜禽欄舍的通風和降溫,供給畜禽充足飲水;飼料中添加維生素,增強抵抗力,防止中暑;需防范由高溫而引起的一些瘟病及疫病,提前做好相應防范措施,防止疫病的發(fā)生及流行。
 
  注:本文由農(nóng)機網(wǎng)(tmpdc.cn)整理發(fā)布,資料來源:百度百科、光明日報。
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