The invention discloses an ecological method for controlling the snail in paddy field by using tea seed cake and two-stage paddy field duck raising whole process system. The method includes the following steps: spraying 45-55 kg per mu before planting after cultivation, optimizing 50 kg tea seed cake; enclosing the paddy field with 0.8-1.2 m nylon net, optimizing 1 m high, so as to facilitate duck raising and control migrating snails and weasels; 10 days after planting, choosing the first batch of ducks in paddy field on sunny days, and swallowing the ridge with ducks. The eggs and young snails of Fushou snails on weeds and rice plants will be eliminated by ducks as ducks grow up. After heading, the first batch of ducks will be moved out of the paddy field to prevent the big ducks from injuring their ears. At the end of tillering stage, the second batch of ducks will be required to hatch their hulls and after full heading stage. Put in the second batch of ducks and continue to devour the eggs and snails of Fushou snail. The invention can not only significantly reduce the cost of snail control and increase economic benefits, but also make ducks and rice produced in paddy fields free from pesticide and herbicide pollution and safer.
【技术实现步骤摘要】
一种用茶籽饼加两段式稻田养鸭全过程系统控制稻田福寿螺的生态方法
本专利技术涉及一种用茶籽饼加两段式稻田养鸭全过程系统控制稻田福寿螺的生态方法。
技术介绍
福寿螺是一种新的有害生物,其形态特征贝壳外观与田螺相似。具一螺旋状的螺壳,颜色随环境及螺龄不同而异,有光泽和若干条细纵纹,爬行时头部和腹足伸出。头部具触角2对,前触角短,后触角长,后触角的基部外侧各有一只眼睛。螺体左边具1条粗大的肺吸管。成贝壳厚,壳高7cm,幼贝壳薄,贝壳的缝合线处下陷呈浅沟,壳脐深而宽。贝雌雄同体,异体交配。卵圆形,直径2mm,初产卵粉红色至鲜红色,卵的表面有一层不明显的白色粉状物,在5―6月的气温条件下,5天后变为灰白色至褐色,这时卵内已孵化成幼螺。卵块椭圆形,大小不一,卵粒排列整齐,卵层不易脱落,鲜红色,小卵块仅数十粒,大的可达千粒以上。卵于夜间产在水面以上干燥物体或植株的表面,如茎秆、沟壁、墙壁、田埂、杂草等上,初孵化幼螺落入水中,吞食浮游生物等。幼螺发育3―4个月后性成熟,除产卵或遇有不良环境条件时迁移外,一生均栖于淡水中,遇干旱则紧闭壳盖,静止不动,长达3―4个月或更长。生活习性广州 ...
【技术保护点】
1.一种用茶籽饼加两段式稻田养鸭全过程系统控制稻田福寿螺的生态方法,其特征在于,所述方法具体包括如下步骤:(1)耘田后插田前每亩撒施45—55kg茶籽饼;(2)把稻田用0.8—1.2m高的尼龙网围起来,便于养鸭和控制外来移居福寿螺和黄鼠狼;(3)插田后10d,选择晴天放入第一批稻田鸭,利用鸭子吞食掉田埂上、杂草上、以至稻株上的福寿螺卵块和幼小的螺,随着鸭子的长大,鸭子消灭移居进来的大螺;(4)水稻抽穗后,将第一批放养的鸭子移出稻田,以防止大鸭子伤穗子;(5)在水稻进入分蘖末期第二批小鸭要求已经孵出壳,齐穗期后则放入第二批鸭子入田,继续吞食福寿螺卵块和小螺。
【技术特征摘要】
1.一种用茶籽饼加两段式稻田养鸭全过程系统控制稻田福寿螺的生态方法,其特征在于,所述方法具体包括如下步骤:(1)耘田后插田前每亩撒施45—55kg茶籽饼;(2)把稻田用0.8—1.2m高的尼龙网围起来,便于养鸭和控制外来移居福寿螺和黄鼠狼;(3)插田后10d,选择晴天放入第一批稻田鸭,利用鸭子吞食掉田埂上、杂草上、以至稻株上的福寿螺卵块和幼小的螺,随着鸭子的长大,鸭子消灭移居进来的大螺;...
【专利技术属性】
技术研发人员:阳树英,梁逢赞,禤景辉,谭灿棉,
申请(专利权)人:湖南农业大学,江门市悦松农业科技有限公司,
类型:发明
国别省市:湖南,43
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