CN110367291B - 一种杂交水稻抑草剂 - Google Patents
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Abstract
本发明提出了一种杂交水稻抑草剂,包括野水稻种植液、植物发酵提取液、莠去津和乙草胺,所述野水稻种植液、植物发酵提取液、莠去津和乙草胺的重量比为10‑15:2‑4:0.1‑0.5:0.1‑0.5。本发明所述的杂交水稻抑草剂抑草效率高,对环境的毒害小,农药残留低。
Description
技术领域
本发明涉及水稻种植技术领域,特别涉及一种杂交水稻抑草剂。
背景技术
水稻是我国第一大粮食作物,水稻田杂草的种类很多,各地杂草发生种类不同,全国稻区约有杂草200余种,其中常见的发生普遍、危害严重的主要杂草约有40种,主要杂草中以稗草发生和危害面积最大,其次为异型莎草、鸭舌草、扁秆藨草、千金子、眼子菜次之。
东北和西北中、寒温带一季稻区主要杂草有稗草、扁秆藨草、日本藨草、牛毛毡、眼子菜、雨久花、萤蔺、鸭舌草、水绵等。
华北平原暖温带一季稻区主要杂草有稗草、异型莎草、扁秆藨草、牛毛毡、水苋菜、鳢肠、水莎草、眼子菜、鸭舌草、水绵、萤蔺、稻李氏禾、荇菜、浮萍、千金子等。
华中长江流域亚热带一、二季稻作区主要杂草有稗草、异型莎草、牛毛毡、水莎草、扁秆藨草、眼子菜、碎米莎草、鸭舌草、矮慈姑、水苋菜、千金子、空心莲子草、鳢肠、陌上菜、萤蔺苹等。
西南云贵和青藏高原亚热带一、二季稻作区主要杂草有稗草、萤蔺、异型莎草、眼子菜、鸭舌草、泽泻、牛毛毡、扁秆藨草、水莎草、矮慈姑、苹、小茨藻、陌上菜等。
南部热带和亚热带二季稻作区主要杂草有稗草、异型莎草、节节菜、水龙、鸭舌草、矮慈姑、日照飘拂草、牛毛毡、水莎草、碎米莎草、千金子、苹等。
水稻除草剂是可使杂草彻底地或选择地发生枯死的农剂,用以消灭或抑制杂草生长而不抑制水稻生长的一类物质。
水稻种植中,容易出现杂草影响水稻的产量,传统方法经常采用除草剂等杀灭杂草,但过多使用除草剂容易造成农药残留,也容易使稻田杂草产生耐药性。
化感作用是植物生态学新的分支学科生态生化学(Ecological Biochemistry)研究内容的一部分。植物化感作用最开始的定义是指植物通过向环境释放特定的次生物质从而对邻近其它植物(含微生物及其自身)生长发育产生的有益和有害的影响。现在,植物化感作用研究事实上已扩展到以植物为中心的一切有机体及环境间通过化学物质为媒介的化学相互作用。
本申请利用野水稻、黑麦、蕨、高粱杆、桉树等的化感作用,抑制杂交水稻稻田中的其他杂草生长。
发明内容
鉴以此,本发明的目的在于提出一种高效、无毒的杂交水稻抑草剂。
本发明所述的杂交水稻抑草剂是这样实现的:
一种杂交水稻抑草剂,包括野水稻种植液、植物发酵提取液、莠去津和乙草胺,所述野水稻种植液、植物发酵提取液、莠去津和乙草胺的重量比为10-15:2-4:0.1-0.5:0.1-0.5。
进一步的,所述的野水稻种植液采用以下方式获得:
步骤1:选取抗病虫能力强的野水稻稻种,黑麦种子间种,采用无土水培的方式,用培养液培养野水稻和黑麦秧苗;
步骤2:培养野水稻和黑麦秧苗至分蘖期后,在野水稻和黑麦苗间加种稻田杂草;
步骤3:将野水稻和黑麦培养至穗期后,将野水稻、黑麦和杂草收割,收集获得草叶A;
步骤4:野水稻稻种和黑麦种子生根至分蘖期,每天更换培养液,野水稻和黑麦分蘖至穗期,每3天更换营养液,将更换下来的营养液收集,经过滤、减压浓缩至原重量的0.01-0.2后,获得所述野水稻种植液。
进一步的,所述步骤1中,野水稻稻种和黑麦种子的种植比例为4-6:1。
进一步的,所述步骤2中,稻田杂草为稗草、扁秆藨草、日本藨草、牛毛毡、眼子菜、雨久花、萤蔺、鸭舌草、水绵等。
进一步的,所述步骤2中,稻田杂草为稗草、异型莎草、扁秆藨草、牛毛毡、水苋菜、鳢肠、水莎草、眼子菜、鸭舌草、水绵、萤蔺、稻李氏禾、荇菜、浮萍、千金子等。
进一步的,所述步骤2中,稻田杂草为稗草、异型莎草、节节菜、水龙、鸭舌草、矮慈姑、日照飘拂草、牛毛毡、水莎草、碎米莎草、千金子、苹等。
进一步的,所述的植物发酵提取液采用以下方式获得:
步骤1:将枯败的叉蕨、高粱杆,以及桉树叶、竹叶、臭椿叶、赤松、高羊茅、黄花蒿、草叶A和艾草切段,粉碎,加水浸泡;
步骤2:在步骤1中,调节PH至3-6,加入淀粉酶和纤维素酶,进行发酵;
步骤3:将发酵后的混合物过滤,收集滤液,减压浓缩至原重量的0.01-0.2后,获得植物发酵提取液。
进一步的,所述步骤3中,过滤后的残渣干燥后,作为杂交水稻的肥料。
进一步的,所述步骤2中,发酵温度为25-35摄氏度,发酵时间为3-5天。
与现有技术相比,本发明的有益效果为:
1)本申请所述的杂交水稻抑草剂抑草效率高;
2)本申请所述的杂交水稻抑草剂对环境的毒害小,农药残留低;
3)本申请还可以获得一种杂交水稻用肥料。
具体实施方式
为对本发明中的技术方案进行清楚、完整地描述,显然,发明人结合实施例进行说明,但以下实施例所描述的仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
一种杂交水稻抑草剂,包括野水稻种植液、植物发酵提取液、莠去津和乙草胺,所述野水稻种植液、植物发酵提取液、莠去津和乙草胺的重量比为10-15:2-4:0.1-0.5:0.1-0.5。
准备野水稻种植液:
种植液1
步骤1:选取抗病虫能力强的野水稻稻种,黑麦种子间种,野水稻和黑麦的比例为5:1,采用无土水培的方式,用培养液培养野水稻和黑麦秧苗;
步骤2:培养野水稻和黑麦秧苗至分蘖期后,在野水稻和黑麦苗间加种稻田杂草:稗草、异型莎草、节节菜、水龙、鸭舌草、矮慈姑、日照飘拂草、牛毛毡、水莎草、碎米莎草、千金子和苹;
步骤3:将野水稻和黑麦培养至穗期后,将野水稻、黑麦和杂草收割,收集获得草叶A1;
步骤4:野水稻稻种和黑麦种子生根至分蘖期,每天更换培养液,野水稻和黑麦分蘖至穗期,每3天更换营养液,将更换下来的营养液收集,经过滤、减压浓缩至原重量的0.1后,获得所述野水稻种植液。
种植液2
步骤1:选取抗病虫能力强的野水稻稻种,黑麦种子间种,野水稻和黑麦的比例为1:1,采用无土水培的方式,用培养液培养野水稻和黑麦秧苗;
步骤2:培养野水稻和黑麦秧苗至分蘖期后,在野水稻和黑麦苗间加种稻田杂草:稗草、异型莎草、节节菜、水龙、鸭舌草、矮慈姑、日照飘拂草、牛毛毡、水莎草、碎米莎草、千金子和苹;
步骤3:将野水稻和黑麦培养至穗期后,将野水稻、黑麦和杂草收割,收集获得草叶A2;
步骤4:野水稻稻种和黑麦种子生根至分蘖期,每天更换培养液,野水稻和黑麦分蘖至穗期,每3天更换营养液,将更换下来的营养液收集,经过滤、减压浓缩至原重量的0.1后,获得所述野水稻种植液。
种植液3
步骤1:选取抗病虫能力强的野水稻稻种,黑麦种子间种,野水稻和黑麦的比例为1:1,采用无土水培的方式,用培养液培养野水稻和黑麦秧苗;
步骤2:将野水稻和黑麦培养至穗期后,将野水稻、黑麦和杂草收割,收集获得草叶A2;
步骤3:野水稻稻种和黑麦种子生根至分蘖期,每天更换培养液,野水稻和黑麦分蘖至穗期,每3天更换营养液,将更换下来的营养液收集,经过滤、减压浓缩至原重量的0.1后,获得所述野水稻种植液。
根据以上制备方法,准备实施例1-4,对比例1-4。
准备植物发酵提取液:
提取液1
步骤1:将枯败的叉蕨、高粱杆,以及桉树叶、竹叶、臭椿叶、赤松、高羊茅、黄花蒿、草叶A1和艾草切段,粉碎,加水浸泡;
步骤2:在步骤1中,调节PH至4,加入淀粉酶和纤维素酶,进行发酵,发酵温度为30摄氏度,发酵时间为5天;
步骤3:将发酵后的混合物过滤,收集滤液,减压浓缩至原重量的0.1后,获得植物发酵提取液。
提取液2
步骤1:将枯败的叉蕨、高粱杆,以及桉树叶、竹叶、臭椿叶、赤松、高羊茅、黄花蒿、草叶A1和艾草切段,粉碎,加水浸泡;
步骤2:在步骤1中,调节PH至8,加入淀粉酶和纤维素酶,进行发酵,发酵温度为40摄氏度,发酵时间为4天;
步骤3:将发酵后的混合物过滤,收集滤液,减压浓缩至原重量的0.1后,获得植物发酵提取液。
提取液3
步骤1:将枯败的叉蕨、高粱杆切段,粉碎,加水浸泡;
步骤2:在步骤1中,调节PH至4,加入淀粉酶和纤维素酶,进行发酵,发酵温度为25摄氏度,发酵时间为2天;
步骤3:将发酵后的混合物过滤,收集滤液,减压浓缩至原重量的0.1后,获得植物发酵提取液。
采用上述野水稻种植液和植物发酵提取液,根据表1,配置实施例1-4,对比例1-5。
表1:
杂草调查依据GB/T17980.42-2000要求进行,每小区随机3点取样,每点0.25平方米,实验地点为海南省陵水县,分别使用实施例和对比例的抑草剂,抑草效果如表2-3所示:
表2:
单位 | 实施例1 | 实施例2 | 实施例3 | 实施例4 | |
稗 | % | 89 | 92 | 85 | 86 |
异性莎草 | % | 88 | 95 | 91 | 89 |
节节菜 | % | 91 | 87 | 93 | 76 |
水龙 | % | 84 | 94 | 86 | 79 |
鸭舌草 | % | 83 | 86 | 91 | 79 |
矮慈姑 | % | 87 | 82 | 83 | 85 |
日照飘拂草 | % | 75 | 79 | 71 | 83 |
牛毛毡 | % | 90 | 86 | 82 | 81 |
水莎草 | % | 76 | 93 | 89 | 84 |
碎米莎草 | % | 79 | 80 | 83 | 80 |
千金子 | % | 77 | 90 | 92 | 81 |
苹 | % | 86 | 94 | 84 | 87 |
表3:
可以看出,按照本申请所述制备方法所得的杂交水稻抑草剂,对稗草、异型莎草、节节菜、水龙、鸭舌草、矮慈姑、日照飘拂草、牛毛毡、水莎草、碎米莎草、千金子和苹都具有良好的抑草效果,优于对比例,优于单纯使用莠去津或者乙草胺的使用效果。
以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (7)
1.一种杂交水稻抑草剂,其特征在于,包括野水稻种植液、植物发酵提取液、莠去津和乙草胺,所述野水稻种植液、植物发酵提取液、莠去津和乙草胺的重量比为10-15:2-4:0.1-0.5:0.1-0.5;
所述的野水稻种植液采用以下方式获得:
步骤1:选取抗病虫能力强的野水稻稻种,黑麦种子间种,采用无土水培的方式,用培养液培养野水稻和黑麦秧苗;野水稻稻种和黑麦种子的种植比例为4-6:1;
步骤2:培养野水稻和黑麦秧苗至分蘖期后,在野水稻和黑麦苗间加种稻田杂草;
步骤3:将野水稻和黑麦培养至穗期后,将野水稻、黑麦和杂草收割,收集获得草叶A;
步骤4:野水稻稻种和黑麦种子生根至分蘖期,每天更换培养液,野水稻和黑麦分蘖至穗期,每3天更换营养液,将更换下来的营养液收集,经过滤、减压浓缩至原重量的0.01-0.2后,获得所述野水稻种植液;
所述的植物发酵提取液采用以下方式获得:
步骤1:将枯败的叉蕨、高粱杆,以及桉树叶、竹叶、臭椿叶、赤松、高羊茅、黄花蒿、草叶A和艾草切段,粉碎,加水浸泡;
步骤2:在步骤1中,调节pH至3-6,加入淀粉酶和纤维素酶,进行发酵;
步骤3:将发酵后的混合物过滤,收集滤液,减压浓缩至原重量的0.01-0.2后,获得植物发酵提取液。
2.根据权利要求1所述的杂交水稻抑草剂,其特征在于,所述野水稻种植液的步骤2中,稻田杂草为稗草、扁秆藨草、日本藨草、牛毛毡、眼子菜、雨久花、萤蔺、鸭舌草、水绵。
3.根据权利要求1所述的杂交水稻抑草剂,其特征在于,所述野水稻种植液的步骤2中,稻田杂草为稗草、异型莎草、扁秆藨草、牛毛毡、水苋菜、鳢肠、水莎草、眼子菜、鸭舌草、水绵、萤蔺、稻李氏禾、荇菜、浮萍、千金子。
4.根据权利要求1所述的杂交水稻抑草剂,其特征在于,所述野水稻种植液的步骤2中,稻田杂草为稗草、异型莎草、节节菜、水龙、鸭舌草、矮慈姑、日照飘拂草、牛毛毡、水莎草、碎米莎草、千金子、苹。
5.根据权利要求1所述的杂交水稻抑草剂,其特征在于,所述野水稻种植液的步骤2中,稻田杂草为稗草、异型莎草、牛毛毡、水莎草、扁秆藨草、眼子菜、碎米莎草、鸭舌草、矮慈姑、水苋菜、千金子、空心莲子草、鳢肠、陌上菜、萤蔺、苹。
6.根据权利要求1所述的杂交水稻抑草剂,其特征在于,所述植物发酵提取液的步骤3中,过滤后的残渣干燥后,作为杂交水稻的肥料。
7.根据权利要求1所述的杂交水稻抑草剂,其特征在于,所述植物发酵提取液的步骤2中,发酵温度为25-35摄氏度,发酵时间为3-5天。
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