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    農業論文

    低洼田稻蝦連作穩糧增效生態養殖技術

    時間:2019年06月26日 所屬分類:農業論文 點擊次數:

    摘要:我國作為農業生產大國,農業的生產一直都是經濟發展的重要推手,而低洼田稻蝦連作的養殖技術,能夠有效的穩定糧食的產量,同時能夠起到保護周圍生態環境的作用,對我國的經濟以及環境的健康可持續發展有著一定的幫助。 關鍵詞:低洼田;稻蝦連作;生態養殖

      摘要:我國作為農業生產大國,農業的生產一直都是經濟發展的重要推手,而低洼田稻蝦連作的養殖技術,能夠有效的穩定糧食的產量,同時能夠起到保護周圍生態環境的作用,對我國的經濟以及環境的健康可持續發展有著一定的幫助。

      關鍵詞:低洼田;稻蝦連作;生態養殖

    中國水產

      1低洼田的生態養殖工程

      1.1選擇合適的低洼稻田

      對于低洼稻田的選擇,是關乎后續農業發展和糧食產量、質量的重要基礎,所以在選擇稻田的時候,要注重其有較好的水源,不僅水源要充足,而且水質有保證;對于交通要選擇便利的地方,有助于其他設備和材料的運輸,對于低洼田的面積在0.67~1.33hm2便可。

      1.2田間的工程

      對于低洼田的埂內側需要在2m出進行開挖,挖出的溝壑寬度保持在2~3m,而溝壑的深度要在1~2m之間。環溝和田間的溝壑需要相連接,根據實際田地的大小挖成“井”字形或者“十”字形,對于溝壑的寬度和深度要保持在1m之下,0.5m之上。對于暫養池的挖掘,要保證寬度在5~10m左右,而深度在1.5m適宜,占總面積的1/10便可。

      1.3排水設施的建立

      排水設施對于低洼田的養殖來說極為重要,要保證排水設施是彼此獨立的,即便在發生洪水的季節,也不會發生漫水,蝦逃跑的現象。在旱季的時候能夠保證漁業充足的水源。對于排水設施的口要壓緊,或者采用柵欄的方式,進行填補,以避免小龍蝦從排水口流出。

      1.4防小龍蝦逃跑的設備

      因為小龍蝦的幼苗不大,所以,要嚴謹小龍蝦從細小的空隙中逃跑,可以使用的工具有,玻璃的缸瓦,加強的鈣塑板,水泥的預制板,以及塑料的薄膜等等,將這些板子插到土壤之中16~20cm左右,在地面上顯示出40cm,但是,要注意板子的4個角不能呈現尖銳型,要圓滑防止傷害到小龍蝦。

      2投放苗種

      2.1相應的準備工作

      在放養之前的15d左右,要讓低洼田的每667m2水面有大約80g的生石灰,以此用來消毒,將水質的雜質進行消毒,以保證后續的苗種投放安全,在之后進行注水大約0.5m左右。對于養蝦的稻田,要栽種一些苦草,黑藻,以及空心菜和水花生之類的植物,保證小龍蝦的生長環境,并且能夠提供它們生長必須的飼料,同時還能夠凈化水環境。

      2.2投放小龍蝦

      在投放蝦苗之前,要先進行試水工作,保證水質安全后,才能投放小龍蝦,保證小龍蝦的質量安全。對于放養的手段,要在稻田收割之后的9月上半月進行投放,讓小龍蝦在稻田內進行自行繁殖生長。小龍蝦雄性和雌性的投放比例要在1/3。

      3投喂生物飼料

      投喂小龍蝦需要做到“四定”,定時;定質;定量;定點。對于定時,就是指飼料的投喂要做到每天至少2次,上午8:009:00,投喂的食物要占1d的1/4,而下午的投喂在4:006:00,占1d投喂的3/4,達到80%左右。定質,顧名思義,就是指投放的飼料要保證最起碼的新鮮,而且飼料的品種要豐富,不能喂養同一類型的飼料,保證小龍蝦攝入足夠的營養,健康的發展。

      定量,對于每天投喂的飼料只能為小龍蝦的5%,對于小龍蝦飼養的原則是蝦的模樣做到中間青,兩頭精,讓小龍蝦得以均衡發展。同時,要根據當時的天氣和氣候,水溫水質來決定蝦飼料的投喂情況。定點,點指的是地點,對于飼料的投放是有固定的投放地區的,只有這樣才能有利于觀察小龍蝦的生長情況。

      4水稻的管理和栽種

      4.1選擇合適的水稻水稻的選擇直接影響了后續農產品的質量和產量,所以,要選擇一些耐施肥,抗病蟲害能力強,不容易倒伏的品種,而且高產量,高質量的品種。

      4.2育秧水稻一定要做好施肥的準備,定期的進行播種,科學管理,對于病蟲害要及時的處理,保證水稻的質量。

      4.3移栽秧苗移栽秧苗的方式,使用大苗移栽的方式,最好保證每667m2的秧苗在12萬株左右,同時,要在漁溜邊和漁溝的位置多栽種2行。

      5收獲

      要降低低洼田中的水位,把稻田內的小龍蝦收入到暫養池,隨后進行水稻的收割。然后捕獲小龍蝦季節最好在秋季,而且夜晚時間手捕和地籠抓捕的方式最好。同時,也可以選擇將小龍蝦苗種收入到暫養池,到第2年的3月份左右進行抓捕。

      6結語

      低洼田進行稻蝦連作的生態養殖技術能夠有效的做到養殖和種植融合,起到保護生態環境的作用,同時,還有助于建設符合我國要求的生態農業,促進我國漁業的發展。

      參考文獻

      [1]低洼田改魚塘純收入翻兩番[J].中國水產,1985(06):14.

      相關刊物推薦:《中國水產》(月刊)1958年創刊,刊名由新中國水產部第一任部長許德珩同志親筆題寫。《中國水產》目前是農業部主管的唯一一份國內外公開發行的漁業綜合性核心期刊。

      

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