miangengdaotianyangyujiushiliyongmiangengdaotianfangyangyidingshuliangdeyulei,tongguoyidingderenweicuoshi,jianlidaoyugongshengdeshengtaimoshi,congertigaogengdideliyonglvhechanchulv,zengjiajingjishouru。shiyixiangtouzishaojianxiaokuaixiaoyihaodenongyexinjishu。
一、稻田選擇
一般選擇水源充足、無汙染、排灌方便、旱澇保收、保水保肥的稻田,耕作層深的稻田、潛育性稻田、冷浸田、爛泥田以及低窪田也適用,耕作層淺的沙土田、沙泥田則不宜選用。
二、開挖魚溝、魚坑
在養魚稻田的四周開好邊溝(也叫圍溝),在田中間開挖“十”字溝或“目”字溝,溝寬35厘米,溝深30-35厘米,水稻栽培壟1.2米(mi)。可(ke)以(yi)根(gen)據(ju)所(suo)需(xu)放(fang)養(yang)魚(yu)的(de)數(shu)量(liang)確(que)定(ding)魚(yu)溝(gou)間(jian)隔(ge)距(ju)離(li)魚(yu)坑(keng)則(ze)宜(yi)開(kai)挖(wa)在(zai)進(jin)水(shui)口(kou)的(de)田(tian)邊(bian)田(tian)角(jiao)或(huo)者(zhe)田(tian)中(zhong)間(jian),從(cong)安(an)全(quan)方(fang)麵(mian)考(kao)慮(lv),以(yi)田(tian)中(zhong)間(jian)為(wei)好(hao)。魚(yu)坑(keng)要(yao)求(qiu)深(shen)50-80厘米,麵積3-5m2。魚yu溝gou魚yu坑keng應ying相xiang互hu連lian通tong。挖wa出chu的de的de泥ni土tu均jun勻yun鋪pu在zai田tian間jian的de稻dao壟long上shang,並bing盡jin可ke能neng打da碎sui鋪pu平ping。在zai開kai挖wa邊bian溝gou的de同tong時shi把ba挖wa出chu的de泥ni土tu對dui田tian埂geng進jin行xing加jia高gao加jia寬kuan加jia固gu,挖wa出chu的de上shang層ceng肥fei泥ni應ying回hui填tian到dao田tian中zhong,底di層ceng硬ying土tu用yong於yu加jia固gu田tian埂geng,一yi般ban要yao求qiu田tian埂geng高gao出chu田tian麵mian30-40厘米,寬35-40厘米,要捶緊夯實。
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