CN114732016B - 一种促进重度盐碱地大穗结缕草匍匐茎侧芽生长的制剂及其使用方法 - Google Patents
一种促进重度盐碱地大穗结缕草匍匐茎侧芽生长的制剂及其使用方法 Download PDFInfo
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Abstract
本发明公开一种促进重度盐碱地大穗结缕草匍匐茎侧芽生长的制剂及其使用方法,该制剂包括A剂和B剂;所述A剂按重量份数计包括如下化学组分:Primo 8.0~9.0份,Spm 0.2~0.8份,GB 2.0~6.0份,桑木醋液0.5~1.0份,溶剂80~95份;所述B剂按重量份数计包括如下化学组分:KH2PO455~65份,ZnSO410~20份,IBA 10~15份,GA38~12份;使用时,A剂和B剂均需在土壤湿度达75%<R<80%之间时喷施;且先喷施A剂,后喷施B剂,并二次喷施A剂,每次喷施后间隔7‑10天。本发明A剂能够提高大穗结缕草的相关酶活性,增强其耐盐能力,B剂能够为大穗结缕草的生长提供营养元素,促进大穗结缕草匍匐茎侧芽生长,达到开发利用及改良盐碱地的目的,具有良好的应用前景及经济价值。
Description
技术领域
本发明涉及草坪种植及沿海滩涂治理技术领域,具体涉及一种促进重度盐碱地大穗结缕草匍匐茎侧芽生长的制剂及其使用方法。
背景技术
滩涂改良一直以来是沿海地区土地资源开发利用的首要问题,通常通过物理、水利、化学、生物等改良方式消除土中的盐碱、增加土壤养分。由于单一改良方式难以达到稳定治理的目的,因此综合利用生物、化学、水利与物理改良方法,成为滩涂改良重要模式。草坪草,特别是生于山坡或平地的沙质土壤或海滨沙地上的大穗结缕草具有优良的耐盐碱性,其具有较强繁殖能力和环境适应性,近年备受关注。然而,沿海滩涂土壤贫瘠,特别滨海是重度盐碱地其不仅含盐碱量高,而且团聚体含量极低、土壤毛管孔隙极密实,具有容重高、透气性差、存水率低、养分含量低及流失速率快的特点。这导致大穗结缕草播种后成活率低,匍匐茎生长缓慢,侧芽少,分蘖率低,不能迅速成坪,改造周期长,改良成效低。
目前,解决这一问题的方式主要有通过物理手段改良土壤性能,例如,种植草坪草会相关改良植物之前采用淡水灌溉洗涤盐分,以提高植物的适应度及成活率;或者采用施入改良基质,营造草坪草生长的固有环境,达到促进其生根成活的目的。然而,首先,采用淡水灌溉洗盐,不仅需要耗费大量的淡水资源,需投入大成本的灌溉设施,而且大量的淡水冲洗,会致使本就营养物质含量低的滨海土壤肥力更加匮乏,同时容易造成土壤更密实板结的问题。其次,施入改良基质,不仅需要引入较多的自然资源,而且基质的有效施入量、施入后的改良效果均难以控制,且这种方式也往往取得是“一时之效”,随着所种植物的生长,营养物质被吸收,土壤的适宜生长性能会变弱,不利于长期改造发展。而且,这些手段均关注的是草坪草生长的外在环境,对草坪草的本身抗性及内在代谢活性并未进行深入研究,因此,如何改善草坪草对盐碱地环境的适应性,促进大穗结缕草匍匐茎侧芽生长,进而促进大穗结缕草生长与成坪,加快改良进度及增加改良成效尚未见于报道。
发明内容
针对上述存在的问题及为了达到上述的目的,本发明提供一种促进重度盐碱地大穗结缕草匍匐茎侧芽生长的制剂及其使用方法,采用抗倒酯(Primo)、精胺(Spm)、甜菜碱(GB)及桑木醋液提高大穗结缕草的抗氧化活性,增强其耐盐能力;利用磷酸二氢钾(KH2PO4)、硫酸锌(ZnSO4)、吲哚乙酸(IBA)及赤霉素(GA3)提高大穗结缕草的抗逆性,促进新叶生长及侧芽分蘖,具体技术方案如下:
首先本发明提供一种促进重度盐碱地大穗结缕草匍匐茎侧芽生长的制剂,包括A剂和B剂;所述A剂按重量份数计包括如下化学组分:Primo 8.0~9.0份,Spm 0.2~0.8份,GB 2.0~6.0份,桑木醋液0.5~1.0份,溶剂80~95份;所述B剂按重量份数计包括如下化学组分:KH2PO4 55~65份,ZnSO4 10~20份,IBA 10~15份,GA3 8~12份;所述A剂和B剂稀释后交替喷施,以促进重度盐碱地大穗结缕草匍匐茎侧芽生长。
优选地,所述A剂按重量份数计包括如下化学组分:Primo 8.5份,Spm 0.5份,GB5.0份,桑木醋液1.0份,溶剂85份;所述B剂按重量份数计包括如下化学组分:KH2PO4 60份,ZnSO4 20份,IBA 10份,GA3 10份。
优选地,所述A剂,桑木醋液为干馏原液,所述溶剂为水。
其次,本发明提供一种前述的促进重度盐碱地大穗结缕草匍匐茎侧芽生长制剂的使用方法,包括如下步骤:
步骤1):准备A剂母液:按前述的重量份数称取各化学组分,配制成A剂母液,备用;
步骤2):准备B剂干粉:按前述的重量份数称取各化学组分,配制成B剂干粉剂备用;
步骤3):A剂稀释:使用前按设定的体积比稀释步骤1)准备的A剂母液,制成浓度合适的A剂喷施液;
步骤4):A剂一次喷施:雨后或对草坪进行浇水,使草坪土壤相对湿度达到一定范围,喷施步骤3)稀释的A剂喷施液;
步骤5):B剂溶解:使用前称取适量步骤2)准备的B剂干粉剂充分溶解在一定量的水中,配成B剂母液备用;
步骤6):B剂稀释:按设定的体积比稀释步骤5)配制的B剂母液,制成浓度合适的B剂喷施液;
步骤7):B剂喷施:A剂一次喷施后间隔一定时间,喷施步骤6)稀释的B剂喷施液,且喷施前草坪土壤相对湿度也需要达到一定范围;
步骤8):A剂二次喷施:B剂喷施7~10天后,再次喷施A剂,喷施方法与步骤4)相同。
作为优选的技术方案的,步骤3)所述A剂喷施液为加水稀释制得,A剂母液与水的体积比为1:10。
作为优选的技术方案的,步骤4)所述A剂一次喷施的喷施量为20L/亩,所述喷施为对盐碱地上的大穗结缕草草坪地上部分的茎叶进行均匀喷施。
作为优选的技术方案的,步骤5)所述B剂母液,B剂干粉剂的用量为650~800g/亩,溶解于2L水中制得。
作为优选的技术方案的,步骤6)所述B剂喷施液为加水稀释制得,B剂母液与水的体积比为1:10。
作为优选的技术方案的,步骤4)喷施A剂和步骤7)喷施B剂前,草坪土壤的相对湿度均达到75%<R<80%之间。
作为优选的技术方案的,步骤7)B剂喷施在A剂一次喷施后间隔7天进行,B剂喷施液用量为20L/亩;且步骤8)A剂二次喷施在B剂喷施后间隔7天进行,A剂喷施液用量为10L/亩。
本发明的有益效果:
1)本发明将桑木醋液结合抗倒酯、精胺和甜菜碱配制成A剂,提高大穗结缕草的相关酶活性,增强其抗氧化活性及能力,进而增强其耐盐能力,以适应滨海重度盐碱地的生长环境,促进大穗结缕草匍匐茎侧芽生长;其中桑木醋液含有丰富酸类、酚类、醛类、酮类等有机化合物,其与抗倒酯、精胺和甜菜碱协同作用能够促进大穗结缕草分蘖及新叶的发生,且能提高大穗结缕草的游离脯氨酸含量,提高其耐盐胁迫能力。
2)本发明将磷酸二氢钾、硫酸锌、吲哚乙酸及赤霉素配制成B剂,为大穗结缕草的生长提供营养元素的同时,提高其抗逆性,使其更加适应重度盐碱地环境,并且吲哚乙酸和赤霉素能进一步促进新叶生长和促进侧芽分蘖,进一步加速大穗结缕草的匍匐茎侧芽生长,缩短其成坪周期,提高其在重度盐碱地的生长适应度。
3)本发明将A剂和B剂分别配制分别喷施,有利于充分发挥各药物的作用,及保证播种草茎成活率。且A剂喷施7天后喷施B剂,并于B剂喷施7天后,进行二次喷施A剂,反复促进大穗结缕草分蘖及新叶的发生能力及抗逆性,保护大穗结缕草新生侧芽细胞,保证其在重度盐碱地环境快速健康生长,达到开发利用及改良盐碱地的目的。
4)本发明通过制剂直接调节穗结缕草自身抗性及内在代谢活性,以适应滨海重度盐碱地的生长环境,相较于关注其生长环境的改良措施,作用更加直接,且更容易控制其用量及改良效果,并取得较好的改良成效。且随着大穗结缕草的生长,土壤理化性质得到改善,且随着草坪草生长,其根、叶等生物质萎落积累可增加土壤的肥力,促进土壤微生物丰富,形成良性的生态循环。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚,下面将结合实施例对本发明的技术方案进行清楚、完整地描述。
实施例1
本实施例是一种促进重度盐碱地大穗结缕草匍匐茎侧芽生长的制剂及使用方法,该制剂包括A剂和B剂;所述A剂按重量份数计包括如下化学组分:抗倒酯C13H16O5(Primo)8.0~9.0份,精胺C10H26N4(Spm)0.2~0.8份,甜菜碱C5H11NO2(GB)2.0~6.0份,桑木醋液0.5~1.0份,溶剂80~95份;所述B剂按重量份数计包括如下化学组分:磷酸二氢钾(KH2PO4)55~65份,硫酸锌(ZnSO4)10~20份,吲哚乙酸IBA10~15份,赤霉素GA3 8~12份;所述A剂和B剂稀释后交替喷施,以促进重度盐碱地大穗结缕草匍匐茎侧芽生长;其中A剂中的桑木醋液为干馏原液,所用溶剂为水。A剂中的各化学组分均能提高大穗结缕草的相关酶活性及增强其抗氧化活性,进而增强大穗结缕草的耐盐能力,并促进大穗结缕草匍匐茎侧芽的生长,适应滨海重度盐碱地的生长环境。其中桑木醋液含有丰富的酸类、酚类、醛类、酮类等有机化合物,与抗倒酯(Primo)、精胺(Spm)以及甜菜碱(GB)协同作用,能够促进大穗结缕草分蘖及新叶的发生,且能提高大穗结缕草的游离脯氨酸含量,提高其耐盐胁迫能力。B剂中磷酸二氢钾、硫酸锌、吲哚乙酸及赤霉素,为大穗结缕草的生长提供营养元素的同时提高其抗逆性,使其更加适应重度盐碱地环境;并且吲哚乙酸和赤霉素能进一步促进新叶生长和促进侧芽分蘖,进一步加速大穗结缕草的匍匐茎侧芽生长,缩短其成坪周期,提高其在重度盐碱地的生长适应度。
本实施例所述的促进重度盐碱地大穗结缕草匍匐茎侧芽生长制剂的使用方法,包括如下步骤:
步骤1):准备A剂母液:按前述的重量份数称取各化学组分,配制成A剂母液,备用;
步骤2):准备B剂干粉:按前述的重量份数称取各化学组分,配制成B剂干粉剂备用;
步骤3):A剂稀释:使用前按1:10的体积比(A剂母液与水的体积比为1:10)加水稀释步骤1)准备的A剂母液,制成浓度合适的A剂喷施液;
步骤4):A剂一次喷施:选择雨后晴天喷施,如果是晴天可以先对草坪进行浇水,使得草坪土壤相对湿度达到75%<R<80%之间,喷施步骤3)稀释的A剂喷施液,喷施量为20L/亩,所述喷施为对盐碱地上的大穗结缕草草坪地上部分的茎叶进行均匀喷施;
步骤5):B剂溶解:按喷施面积的大小称取适量步骤2)准备的B剂干粉剂并充分溶解在的自来水或者清水中,配成B剂母液备用;一般B剂干粉剂用量为650~800g/亩,溶解用水为2L水左右,配成母液;
步骤6):B剂稀释:A剂喷施间隔7天后,按1:10的体积(B剂母液与水的体积比为1:10)比稀释步骤5)配制的B剂母液,制成浓度合适的B剂喷施液;
步骤7):B剂喷施:同样选择雨后晴天,或对草坪进行浇水,使得草坪土壤相对湿度达到75%<R<80%之间,喷施步骤6)稀释的B剂喷施液,喷施量也为20L/亩,对盐碱地上的大穗结缕草草坪地上部分的茎叶进行均匀喷施;
步骤8):A剂二次喷施:B剂喷施7~10天后,再次喷施A剂,喷施方法与步骤4)相同,喷施量为10L/亩。
本实施例中,A、B两种制剂都必须在雨后天晴喷施,如果在晴天干旱季节喷施,必须先对大穗结缕草草坪浇水,当土壤湿度达75%<R<80%之间时,方可以喷施。因为研究证明当土壤湿度达75%<R<80%之间时,土壤的熵情最有利于药效的发挥,利于药剂对大穗结缕草根部的影响,促进根系生长。并且必须要先喷施A剂,7天后喷施B剂。因为A剂中的桑木醋液为酸性,其可以一定程度降低大穗结缕草匍匐茎根系生长环境中的pH值,建立性酸环境,利于精胺功能的发挥,促进根基细胞增殖,而Primo可以在一定程度上抑制赤霉素的生物合成,使大穗结缕草生长暂时受到抑制,进而在甜菜碱的作用下调节体内渗透压,使其形成适应滨海重度盐碱地的高盐高土壤溶液渗透压的代谢机制,达到提高大穗结缕草抗逆性,使其适应环境的目的。而喷施A剂7天后新根系基本长出,且此时地面部分的叶片正常生长,新叶也已长出,此时喷施B剂,给大穗结缕草补充营养成分,同时补充吲哚乙酸及赤霉素,解除Primo的限制作用,促进根尖细胞生长及新叶发生,并促进新叶细胞伸长,茎细胞伸长,达到促进大穗结缕草侧芽生长的目的。B剂喷施7天后,大穗结缕草的根部及新叶及侧芽茎均有一定的增量,再次大穗结缕草地上部分的茎叶喷施A剂,以作用于叶片,促使叶片细胞分裂,促进分枝(分蘖)与新叶片长出,达到加快大穗结缕草生长,快速成坪的目的。
实施例2
本实施例大穗结缕草种植地是位于江苏省如东市小洋口镇洋口港的盐碱地,其土壤浸出液中含有可溶性盐大0.67%,土壤浸出液的pH值达9.48,是重度盐碱地。为了验证实施例1中的制剂的效果,本实施例设置多个实验组进行验证,具体实验设计如下:
CK(对照):不进行任何处理;
T1处理组:选择晴天不进行浇水,喷施A剂,7天后喷施B剂,不二次喷施A剂;
T2处理组:选择晴天不进行浇水,喷施A剂,7天后喷施B剂,再7天后二次喷施A剂;
T3处理组:选择晴天进行浇水,控制湿度为<75%(65%),喷施A剂,7天后喷施B剂,再7天后二次喷施A剂;
T4处理组:选择晴天进行浇水,控制湿度为75%<R<80%,喷施A剂,7天后喷施B剂,再7天后二次喷施A剂;
T5处理组:选择晴天进行浇水,控制湿度为﹥80%(90%),喷施A剂,7天后喷施B剂,再7天后二次喷施A剂;
T6处理组:选择晴天进行浇水,控制湿度为75%<R<80%,喷施A剂,3天后喷施B剂,再3天后二次喷施A剂;
T7处理组:选择晴天进行浇水,控制湿度为75%<R<80%,喷施A剂,10天后喷施B剂,再10天后二次喷施A剂。
为控制其他因素的一致性,本实施例个实验组选择同一天播种的且涨势一致的草坪草进行实验,且每次喷施药剂均在同一天进行。本实施例中,每个实验组设5个水平,每个水平的A剂和B剂所含的化学组分重量份不同,具体配方见下表:
上述配方的A剂和B剂均在使用前将母液与水按1:10的比例稀释后喷施;喷施量均为:A剂一次喷施控制为20L/亩,二次喷施控制为10L/亩,B剂喷施控制为20L/亩。
喷施28天后,分别统计各处理组大穗结缕草匍匐茎侧芽的数量(个)(10cm×10cm面积的样框范围内)(如表1所示)、匍匐茎侧芽的长度(mm)(如表2所示)以及匍匐茎侧芽的生物量鲜重(g)(如表3所示);同时检测大穗结缕草匍匐茎侧芽细胞的相对电导率(如表4所示)及侧芽细胞的MDA(μmol.g-1FW)(如表5所示)。
表1.各处理组喷施后第28天匍匐茎侧芽的数量(个)
表2.各处理组喷施后第28天匍匐茎侧芽的长度(mm)
表3.各处理组喷施后第28天匍匐茎侧芽的生物量鲜重(g)
由表1至表3的数据可以看出,选择晴天进行浇水,控制湿度为75%<R<80%,喷施A剂,7天后喷施B剂,再7天后二次喷施A剂的T4处理组,28天后大穗结缕草侧芽数量最多,茎侧芽的长度及生物量鲜重明显增加;对比CK、T1、T2、T4处理组可见,喷施A剂和B剂能够促进大穗结缕草不定根生长,且在控制湿度情况下,喷施A剂和B剂效果显著;对比T3、T4、T5处理组可见,将湿度控制在75%<R<80%喷施效果最佳;对比T4、T6、T7处理组可见,将喷施时间间隔控制在7天,时效果最佳。
表4.各处理组喷施后第28天匍匐茎侧芽细胞的相对电导率(%)
表5.各处理组喷施后第28天匍匐茎侧芽细胞的MDA(μmol.g-1FW)
由表4和表5的数据可以看出,不进行任何处理的CK对照组大穗结缕草新生侧芽细胞内的相对电导率处于较高状态,说明在沿海滩涂土壤重盐胁迫下,大穗结缕草的细胞膜受到了损坏,导致细胞膜的通透性增加;同时新生侧芽细胞内的MDA水平也处于较高状态,说明细胞膜过氧化程度较高,细胞膜受损较大。而其他处理组相对于CK对照组侧芽细胞内的相对电导率及MDA水平均相对有所降低,其中选择晴天进行浇水,控制湿度为75%<R<80%,喷施A剂,7天后喷施B剂,再7天后二次喷施A剂的T4处理组的侧芽细胞内相对电导率及MDA水平均最低;这证明,实施例1制备的制剂及喷施方法可以显著降低大穗结缕草在盐胁迫下其侧芽细胞内的相对电导率及MDA水平,这进一步说明了实施例1制备的制剂及喷施方法可使大穗结缕草的新生侧芽细胞膜的完整性得到有效保护,提高大穗结缕草的耐盐性;另外,横向对比各表数据,A剂和B剂所含不同水平的化学组分重量份处理的大穗结缕草指标效果也均呈现先升高后降低的趋势,说明A剂和B剂各化学组分的配比也应严格按照规定的重量份配伍,才能保证制剂的喷施效果。
本实施例进一步对各实验组大穗结缕草的成坪速度及处理42天后土壤中可溶性含盐量和pH值进行记录和测定,结果如表6和表7所示:
表6.各处理组的大穗结缕草成坪速度(天)
表7.各处理组的处理42天后土壤中可溶性含盐量和pH值
表6数据显示,不进行任何处理的CK对照组大穗结缕草成坪(草坪覆盖率95%以上)时间平均为68.8天,即需要两个多月的时间;而选择晴天进行浇水,控制湿度为75%<R<80%,喷施A剂,7天后喷施B剂,再7天后二次喷施A剂的T4处理组草坪成坪时间平均只需39.6天,仅需一个多月,成坪时间缩短近一半;从表7的数据可以看出,T4处理组处理42天后土壤中可溶性含盐量和pH值均为最低,这说明实施例1制备的制剂和使用方法,不仅可加快大穗结缕草对盐碱土的改良速度,且改良作用效果显著。
总体而言,本发明将桑木醋液结合抗倒酯、精胺和甜菜碱配制成A剂,提高大穗结缕草的相关酶活性,增强其抗氧化活性及能力,进而增强其耐盐能力,以适应滨海重度盐碱地的生长环境,促进大穗结缕草匍匐茎侧芽生长;其中桑木醋液含有丰富酸类、酚类、醛类、酮类等有机化合物,其与抗倒酯、精胺和甜菜碱协同作用能够促进大穗结缕草分蘖及新叶的发生,且能提高大穗结缕草的游离脯氨酸含量,提高其耐盐胁迫能力。将磷酸二氢钾、硫酸锌、吲哚乙酸及赤霉素配制成B剂,为大穗结缕草的生长提供营养元素的同时,提高其抗逆性,使其更加适应重度盐碱地环境,并且吲哚乙酸和赤霉素能进一步促进新叶生长和促进侧芽分蘖,进一步加速大穗结缕草的匍匐茎侧芽生长,缩短其成坪周期,提高其在重度盐碱地的生长适应度。
另外,本发明将A剂和B剂分别配制分别喷施,有利于充分发挥各药物的作用,及保证播种草茎成活率。且A剂喷施7天后喷施B剂,并于B剂喷施7天后,进行二次喷施A剂,反复促进大穗结缕草分蘖及新叶的发生能力及抗逆性,保护大穗结缕草新生侧芽细胞,保证其在重度盐碱地环境快速健康生长,达到开发利用及改良盐碱地的目的。
本发明通过制剂直接聚焦于调节穗结缕草自身抗性及内在代谢活性,保护大穗结缕草新生侧芽细胞,以适应滨海重度盐碱地的生长环境,相较于关注其生长环境的改良措施,作用更加直接,且更容易控制其用量及改良效果,取得较好的改良成效,也给沿海滩涂治理和改良提供新的参考途径。
对于本领域技术人员而言,显然本发明不限于上述示范性实施例的细节,而且在不背离本发明的精神或基本特征的情况下,能够以其他的具体形式实现本发明。因此,无论从哪一点来看,均应将实施例看作是示范性的,而且是非限制性的。此外,应当理解,虽然本说明书按照实施方式加以描述,但并非只包含一个的技术方案,说明书的这种叙述方式仅仅是为清楚起见,本领域技术人员应当将说明书作为一个整体,实施例中的技术方案也可以经适当组合,形成本领域技术人员可以理解的其他实施方式。
Claims (3)
1.一种促进重度盐碱地大穗结缕草匍匐茎侧芽生长制剂的使用方法,其特征在于:该制剂包括A剂和B剂;
所述A剂按重量份数计包括如下化学组分:抗倒酯8.0~9.0份,精胺0.2~0.8份,甜菜碱2.0~6.0份,桑木醋液0.5~1.0份,溶剂80~95份;
所述B剂按重量份数计包括如下化学组分:KH2PO4 55~65份,ZnSO4 10~20份,吲哚乙酸10~15份,赤霉素8~12份;
所述A剂和B剂稀释后交替喷施,以促进重度盐碱地大穗结缕草匍匐茎侧芽生长;
具体使用方法,包括如下步骤:
步骤1):准备A剂母液:按所述的重量份数称取各化学组分,配制成A剂母液,备用;
步骤2):准备B剂干粉:按所述的重量份数称取各化学组分,配制成B剂干粉剂备用;
步骤3):A剂稀释:使用前按设定的体积比稀释步骤1)准备的A剂母液,制成浓度合适的A剂喷施液;A剂喷施液为加水稀释制得,A剂母液与水的体积比为1:10;
步骤4):A剂一次喷施:雨后或对草坪进行浇水,使草坪土壤相对湿度达到一定范围,喷施步骤3)稀释的A剂喷施液;所述A剂一次喷施的喷施量为20L/亩,所述喷施为对盐碱地上的大穗结缕草草坪地上部分的茎叶进行均匀喷施;喷施A剂前,草坪土壤的相对湿度达到75%<R<80%之间;
步骤5):B剂溶解:使用前称取适量步骤2)准备的B剂干粉剂充分溶解在一定量的水中,配成B剂母液备用;所述B剂母液,B剂干粉剂的用量为650~800g/亩,溶解于2L水中制得;
步骤6):B剂稀释:按设定的体积比稀释步骤5)配制的B剂母液,制成浓度合适的B剂喷施液;所述B剂喷施液为加水稀释制得,B剂母液与水的体积比为1:10;
步骤7):B剂喷施:A剂一次喷施后间隔一定时间,喷施步骤6)稀释的B剂喷施液,且喷施前草坪土壤相对湿度也需要达到一定范围;喷施B剂前,草坪土壤的相对湿度达到75%<R<80%之间;B剂喷施在A剂一次喷施后间隔7天进行,B剂喷施液用量为20L/亩;
步骤8):A剂二次喷施:B剂喷施7~10天后,再次喷施A剂,喷施方法与步骤4)相同;A剂二次喷施在B剂喷施后间隔7天进行,A剂喷施液用量为10L/亩。
2.根据权利要求1所述的促进重度盐碱地大穗结缕草匍匐茎侧芽生长制剂的使用方法,其特征在于:
所述A剂按重量份数计包括如下化学组分:抗倒酯8.5份,精胺0.5份,甜菜碱5.0份,桑木醋液1.0份,溶剂85份;
所述B剂按重量份数计包括如下化学组分:KH2PO4 60份,ZnSO4 20份,吲哚乙酸10份,赤霉素10份。
3.根据权利要求1所述的促进重度盐碱地大穗结缕草匍匐茎侧芽生长制剂的使用方法,其特征在于:所述A剂,桑木醋液为干馏原液,所述溶剂为水。
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