1、清溝排水,防止棉田受漬。疏通、加深棉田四周邊溝,疏理壟溝,如果田塊較長,要注意開通中溝。“三溝”與棉田外圍的主溝相通,確保排水暢通。
2、抓住晴好天氣,適墒中耕培土。雨停轉晴,待棉田基本收幹後,及時中耕鬆土促通氣,並結合壅根培土,促使根係下紮,提高棉株抗旱、抗倒能力。
3、摘除葉枝,減少養分消耗。棉花進入蕾期有1-2個ge果guo枝zhi後hou,結jie合he中zhong耕geng培pei土tu,及ji時shi去qu除chu葉ye枝zhi,既ji可ke減jian輕qing田tian間jian蔭yin蔽bi,又you可ke減jian少shao養yang分fen的de消xiao耗hao,改gai善shan棉mian田tian的de通tong風feng透tou光guang條tiao件jian,控kong製zhi營ying養yang生sheng長chang,使shi養yang分fen向xiang棉mian株zhu生sheng殖zhi器qi官guan轉zhuan移yi,減jian少shao幼you蕾lei脫tuo落luo。
4、化hua學xue調tiao控kong,防fang止zhi棉mian株zhu徒tu長chang。雨yu水shui充chong沛pei,極ji有you利li於yu棉mian株zhu的de營ying養yang物wu質zhi向xiang營ying養yang器qi官guan輸shu送song,導dao致zhi主zhu莖jing節jie間jian距ju加jia大da,株zhu高gao增zeng長chang加jia快kuai,營ying養yang生sheng長chang與yu生sheng殖zhi生sheng長chang比bi例li失shi調tiao,加jia劇ju了le棉mian株zhu的de徒tu長chang。雨yu停ting轉zhuan晴qing後hou,除chu深shen中zhong耕geng控kong長chang外wai,還hai可ke通tong過guo噴pen施shi助zhu壯zhuang素su來lai防fang止zhi徒tu長chang,用yong量liang為wei每mei畝mu2-5毫升兌水30公斤對棉株幼嫩部分噴霧。
5、jiaqiangbingchongfangzhi。yushuiduo,yachongfashengliangjiada,yifakuweibing。keyongdishasidenggaoxiaonongyaojinxingfangzhi。duiyukuweibingfangzhi,zhuyaoshizaiyuhoujiaqiangfeishuiguanli,zengqiangmianzhukangnixing。
手機版




