芸苔素是世界公认的第六大类植物生长调节剂。作为最晚发现的植物内源调节剂,天然芸苔素甾醇的很多功能也是近十多年才开始被发现、重视并应用于田间生产中。作者对天然芸苔素甾醇在实际使用中的八大功能与主要应用作物进行了梳理,供大家参考使用。
一、花芽分化
研究发现经天然芸苔素甾醇处理后的猕猴桃,促进了其花粉管的伸长,花粉萌发率明显提高。实际使用中,在作物的花期使用芸苔素喷施,可促进花粉管伸长,提高花粉活力,提高授粉成功率。对于座果率不佳、或者花期遭遇不良天气的作物,都可以通过使用天然芸苔素甾醇来提升座果率。
二、保花保果
每年的三四月份,是柑橘保果的重要季节。柑橘的许多品种因其特性,生理落果严重,需要使用调节剂来保花保果。通常使用天然芸苔素甾醇搭配硼肥促花,减少畸形花概率;同时天然芸苔素甾醇与赤霉酸配合施用可有效保花保果,在沃柑、金桔、脐橙、砂糖桔等品种上尤为重要!
三、转色增糖
研究发现,外源施加芸苔素能够促进果实成熟;同时芸苔素能加强作物的光合作用效率,促进养分、色素和糖分的合成与积累。在果实转色初期,喷施天然芸苔素甾醇搭配磷钾为主的叶面肥,能够有效的促进果实着色、增糖,使果实提前成熟,增加经济价值。
四、浸种拌种
小麦、水稻、花生、玉米和棉花等大田作物,在播种前拌种是十分关键的一环;以小麦为例,拌种处理能够解决小麦生长的五大早期问题。
在这些大田作物上,“拌种剂+天然芸苔素甾醇”已经是成熟的种子处理流程,其优势体现在:
01
促芽促根,培育壮苗
02
促进分蘖,提质增产
03
防寒抗冻、降低风险
五、增产增收
在大田作物水稻、小麦、玉米上,这几年在各种增产套餐中都能见到芸苔素的身影,最出名的就是“芸乐收”。天然芸苔素甾醇在多年的使用中证明了其增产增收的实际效果:能够有效增加千粒重和出米率,提高产量和品质。
六、防寒抗冻
倒春寒和突发性降温是每年造成作物减产的主要原因之一。近两年,拉尼娜现象的频繁出现更是给我们敲了警钟:防寒抗冻的工作不仅要做,更要做到位。
在降温来临前使用“天然芸苔素甾醇+磷酸二氢钾/植物VC”,能够有效的提高作物内POD酶活性,抵抗低温冻害对作物的损伤。
新朝阳天然芸苔素甾醇与植物VC复配使用,可显著提升过氧化物酶(POD)和过氧化氢酶(CAT)的活性,有效缓解冻害对作物光合能力的损害,且冻害后恢复能力更强。
七、解除药害
对于因农药、肥料使用不当造成的作物叶片损伤、生长停滞等药害,通过喷施和滴灌天然芸苔素甾醇,能提高作物的代谢速率,加快作物的恢复,解除因药害造成的生长停滞,促进新叶生长。
八、点肥成金
天然芸苔素甾醇在滴灌和冲施上应用,是近两年才开发的新功能。这种使用方法能够有效的促进作物根系生长,对于根系和根毛数量都有着显著的促生效果。搭配肥料使用时,可提高作物对养分的吸收运输,点肥成金。
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