2024年7月18日 星期一 19:43:55

马铃薯夏秋季管理

        一、现蕾期
  6月下旬-7月中旬,马铃薯进入现蕾期,也是地上地下部分开始同步生长的重要时期。此时,马铃薯需肥需水最多,加强现蕾期田间管理,是获得马铃薯丰产的关键措施。 
  1、及时中耕马铃薯现蕾后,要加强中耕,进行浅锄土,随中耕高培土。
  2、适当追肥对植株矮小、黄弱的马铃薯苗田应追施氮肥,逐株追施;对植株生长旺盛的田块,应施磷钾肥为主。
  3、及时打顶马铃薯现蕾以后马上进入开花期,要消耗大量养分。为避免这种无效消耗,应及早打顶并把花蕾摘掉。
  4、根外喷肥现蕾期应选择晴天下午进行根外喷肥,喷施0.3%磷酸二氢钾和0.3%硫酸锰混合液,可使马铃薯植株矮化1/3,叶色变浓绿,加强光合作用,增加大薯比例。
  5、防治病虫马铃薯进入现蕾期,田间生长郁蔽,容易出现高湿环境,导致发生晚疫病。一旦发生中心病株应喷药防治,可用硫酸铜、百菌清、瑞毒霉等杀菌剂。马铃薯也易受到瓢虫危害,可用氧化乐果800倍液喷雾消灭。
  二、开花期
  7月下旬-8月下旬,马铃薯开花时正好进入结薯期,需水量大增,植株现蕾后地下葡萄茎开始膨大,进入需水高峰期,有浇水条件的地方,应在开花期进行浇水,应7-10天浇一次,促进块根迅速膨大,不能浇的太晚,以免造成徒长,遇捞或降雨过多,应排水。无灌水条件的地方,应抓住降水时机,追施开花肥,开花肥以氮肥为主。
  三、成熟期
  8月下旬-9月中旬,马铃薯成熟期是淀粉积累的关键时期,田间管理最重要的是要防早衰,尽量延长植株的生长时间,促进干物质积累。
  四、收获期
  9月下旬-10月中旬,待2/3的叶片变黄、植株开始枯萎时应及时收获。收获后在田间晾晒3-5天,剔除泥土、绿薯、霉烂薯、挑选无破损、无病害的健薯入窖,结合秋收,清除地膜,以免造成土壤污染。
phone spy free turbofish.com phone tracking app android
history of hiv/aids nav-connector.com causes of aids
why do men cheat on their girlfriends i had a dream that my girlfriend cheated on me my girlfriend cheated on me should i take her back
how to cheat on your boyfriend blog.perecruit.com my boyfriend cheated now what
your wife cheated on you my wife cheated on me now what do i do my wife cheated on me now what do i do
women who cheat on men link wifes that cheat
sex orgies for kids sex stories myjustliving.com naughty adult stories
how many guys cheat blog.jeannettespecglass.com why do people cheat
adult sex stories teacher student open adult jokes dirty jokes blonde jokes pick up lines humor stories funny
top android spy best phone spy app phone spyware free
abortion clinics in austin blog.weddingvenuedirectory.com when can you not get an abortion
do abortions hurt free abortion clinic abortion essay
free pharmacy discount cards ilovetodeletecode.com rhoads pharmacy coupons
ciprofloxacin tablet 500mg ciprofloxacin 500mg antibiotics co ciprofloxacin side effects
when married men cheat site cheat on my husband
wife cheated click cheat on husband
how much does a abortion cost dog abortion baby abortion
when is the latest you can terminate a pregnancy link late term abortions
discount prescription drug card cvs deal this week cvs photo print
abortion in clinic site pregnancy stages
thyroxine bottle skoc.net levofloxacin
viagra 100 mg http://viagrawithoutadoctorprescription1.com buy viagra 100mg
vardenafil pill site diflucan 100mg
discount coupons for cialis mba-institutes.com cialis coupons
celecoxib ilkpirlantam.com viagra pill
viagra discounts coupons open coupons for prescriptions
pfizer coupons for viagra gallaghermalpractice.com viagra coupon 2016
coupon for prescription cialis online coupon prescription transfer coupon
vacuum aspiration abortion cytotec abortion how to have an abortion
cialis coupon lilly coupons for cialis printable discount prescription drug card
coupons for prescriptions is-aber.net cialis prescription coupon