推荐回答(5个)
一般花生的最佳种植时间在4月中下旬—5月上旬,也就是谷雨前后这段时间是花生播种的最佳时间。春花生适期播种,可提高土地、光能利用率,使植株生长矮壮,节间密、分枝多、根系生长好,干物积累多,开花、结果多,饱果率高,易于达到高产优质的要求。
过早播种,因温度低种子不能正常发芽,出苗慢,增加土壤病虫侵害的机会,出苗率低,幼苗生长不良,并影响花芽的分化发育;但过迟播种,南方产区处在高温多雨环境下,花生容易徒长倒伏,结荚少。
中部和北方的花生,特别是普通型花生,在结荚成熟期间,往往碰上秋旱和低温,影响荚果发育和养分积累,导致饱果率、出仁率和含油率低而降低产量和质量。套种或夏播花生,前作物要采用早熟品种、早播种,避免花生过迟播种造成减产。
扩展资料:
北方大花生春播露地栽培连续5天5cm处的平均地温≥15℃为适宜播种期,辽、京、冀、鲁、豫、苏北和皖北的播种适期为4月中旬~5月上旬(“谷雨”至“立夏”)。
长江中下游北部平原,如鄂东低平丘陵区,春花生在4月上旬播种;江汉平原4月中旬播种,苏、皖春花生4月下旬播种。
长江中游南部丘陵区和赣北、四川盆地春花生播种期以3月下旬~4月上旬(“春分”至“清明”)为宜,福达花生网-花生高产创建中心。
云贵高原花生区、滇南春花生区3月下旬―4月下旬播种;元江流域及新平等地,播种期以4月下旬―5月中旬为宜。
西北内陆花生区、甘肃、河西走廊和新疆4月下旬~5月上旬(“立夏”)播种为宜,东北早熟花生区的辽北、吉林、黑龙江东南部春花生5月上中旬(“立夏”至“小满”)播种为宜。
参考资料:百度百科-落花生
花生又名长生果,一般我国会在4月下旬到5月上旬去播种,这时候天气比较好,一般温度会稳定在12度左右,非常适合花生的生长。花生的播种时间已经确定,那么下面我们就来说一下花生的种植技术。
花生播种时应控制好密度,基本保证每穴2粒就可以了。然后等到花生苗长出来以后,记得要把幼苗基部的土扒开,使其子叶可以露出来,促使第一对侧枝提早形成,见状发育,起到间接蹲苗的目的。接下来就要控制花生浇水的问题了,可以在花生开花下针期,结荚期各及时浇水一次,还可以在饱果期继续浇水一次。最后就要做好对病虫害的防治了,这个可以适当的使用一定量的农药,比如可用40%的乐果1000倍液防治蚜虫,可用50%的多菌灵1000倍液防治花生病毒病,可用25克每升的高效氯氟氰菊酯3000倍液防治棉铃虫。
(1)播种期。春季5cm土层地温稳定在12℃时,珍珠豆型花生即可播种。约在4月底至5月上旬,地膜覆盖栽培可稍提前7~10天。
(2)播种密度与方式。垄作:垄距50cm,穴距13~17cm,即12万~15万穴/公顷,每穴播两粒。地膜覆盖畦作:一畦两行,小行距40cm,穴距13~17cm,每穴两粒,即12万~15万穴/公顷。
根据各地情况,从阴历二月中下旬到三月底上,阳历一般从三月下旬到四月底可以种,过了这个时间再种,产量非常低,一般都不怎么结了。
大花生当5厘米地温连续5天稳定在15℃以上,小花生当5厘米地温连续5天稳定在12℃以上,就可以播种了。在温度满足要求的条件下,如果水源充足,有必要进行造墒播种。造墒时,水量不能太大,也不能太少,用手抓起5厘米处的土壤一握,随即放开,如果抓起来的土顿时散开,就可以了。
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