2024年7月18日 星期一 19:43:55

露地春马铃薯栽培技术要点

    要选用良种。“东农303”和“克新四号”经多年种植表现优质、高产、早熟。亩产量可达1500—2000公斤。亩用种量约需150公斤,大薯可切开播种,每个种薯重20—25克,?眼2—3个。
    要适时播种。各地应根据马铃薯的生长特性和本地气候条件做到适时播种,总结多年来的生产实践及本地气候条件,春季露地栽培马铃薯最佳播种期在立春到雨水之间,即2月上中旬。随着纬度和海拔的升高,播种期可适当推迟。
    要施足基肥。马铃薯提倡一次性施足肥料。翻耕时亩用45%含硫三元复合肥50公斤撒施,不宜施用含氯的化肥,以免影响品质。翻耕后做畦开播种。亩用浓人粪尿10担点,再施入一把畜禽粪肥,盖上一层土,然后放入种薯,避免种薯和肥料直接接触影响出苗。
    化学除草。为了防止草害,可在播种复土后亩用50%乙草胺100毫升冲水全田细喷雾,注意施药时要求土壤湿润,田面平整,以提高除草效果。
    化学调控。利用多效唑控徒长,促矮壮的作用,在马铃薯始花期到盛花期亩用烯效唑30毫升,冲水50公斤均匀喷雾,可有效防止徒长,减轻病害和提高产量。
    防病治虫。马铃薯生长期间主要病害是晚疫病,发现零星病株时应及时拔除,然后全田用25%瑞毒霉800倍喷雾防治,虫害主要有28星瓢虫和蚜虫,发生时可用80%敌敌畏500倍和10%吡虫啉1500倍喷雾防治。

 

has my girlfriend cheated on me prashanthiblog.com why do men cheat on their girlfriends
why people cheat in relationships I cheated on my husband wifes cheat
women who cheat on men blog.rewardsrunner.com wifes that cheat
why do guys cheat mdfoosball.com why do men have affairs
remote spy software spy cell software spy android apps
abortion pills for sale can birth control terminate a pregnancy how to terminate a pregnancy
same day abortion clinics how do they do abortions history of abortion in america
keflex levitra 20mg valacyclovir 0.5g
sildenafil citrate 200mg lasix pill thyroxine 200mcg
viagra coupon card go free coupon for viagra
lilly cialis coupon open printable coupons for cialis
cialis dosing and cutting pills cialis dosing options cialis dosage and timing
acheter viagra generique internet http://acheterviagraenfrance.com/generique/internet acheter viagra generique internet
cheap viagra online http://viagraforsaleuk1.com effects of viagra on women
cialis coupon card blog.nvcoin.com discount card for prescription drugs
free prescription drug cards nationalautocare.com free prescription discount cards