Cua đồng dễ nuôi, thu lợi nhanh

PHO BIEN KIEN THQC KHOA HOC KY THUAT - TI rlimwi i i i i i m t t Mimiiriitiiiiiiiiiii<br /> <br /> <br /> <br /> <br /> Cua dong de nuoi, thu Idi nhanh<br /> <br /> C<br /> ua ddng thudc Idp gidp xac, bd 10 chdn, rudng Ida rdi hieu qua, dau tu thap nhung mang<br /> cd tap tinh sinh sdng bd dudi day ao va lai hieu qua kinh te cao. Hien nay toan huyen<br /> dao hang chui rdc, cd kha nang bd len Qudc Oai cd khoang 20 hd nudi cua ddng,<br /> can vd di chuydn rat xa. Cua ddng la loai an tap, Tram dang cd ke' hoach xdy dung md hinh nudi<br /> chdng cd thd an ta'm, cam, Ida, khoai, cu, cua, cua ddng tap trung vdi tdng dien tich 5 ha. Den<br /> ca vd cd thdc an cdng nghiep cua ca. Cua cd tap tham md hinh nudi cua ddng cua anh Nguydn<br /> tinh trd dn vao ban ngdy vd tim mdi vao ban Huy Ludng d thdn Van Quang, xa NghTa<br /> dem. Tuy nhien nd cung cd khd nang nhin ddi Huong, huyen Qudc Oai, mot trong nhiing<br /> td 10 - 15 ngdy. Dac biet cua cung cd tap tinh guong mat dien hinh chuydn ddi co cau cay<br /> lot xdc tdi sinh, trong qua trinh dd nd cd thd tdi trdng vat nudi, mang lai hieu qua kinh te' rai<br /> sinh cang, que da mai. Mdi lan lot xac trgng cao. Anh Nguydn Huy Ludng cho bi6i: Nam<br /> lugng cua tang binh quan tu 20 - 50%. Tudi thg 2004, qua chu truong ddn didn ddi thua anh<br /> cua cua la 1 - 2 nam tudi. O nudc ta cua ddng dugc giao gan 2 mdu (Bdc bd) trong dd cd 7 sao<br /> thudng gap d vuc nudc nggt: ao, hd, rudng, cdy Ida, 4 sao ao tha cd cdn lai anh lam trai nudi<br /> sdng, sudi, nudc Ig nhat vung ddng bang, trung Ign, trdng budi Didn. Sau mot nam ca'y Ida, qua<br /> du vd midn ndi. Cua cdi cd 4 ddi chdn bung, cua tinh toan tru chi phi khdng lai bao nhieu. Dang<br /> due cd 2 ddi chdn bung bien thanh chan giao loay hoay vdi may sao Ida, tinh cd anh nghe ndi<br /> cau. Trudc day, sdn lugng cua ddng tai Viet vd md hinh nudi cua ddng d phia Nam. Cua<br /> Nam len den hdng van tan, song do ky thuat ddng - mot mdn an dan gia nay da trd thanh<br /> canh tac mdi, xay dung thuy lgi, su dung thudc mdn dac san, cd mat nhidu d cdc nha hang,<br /> tru sau... da lam giam ngudn lgi cua ddng d chinh VI vay thi trudng tieu thu rdt Idn, cua san<br /> nhidu dia phuang. Di gidp ba con ndng dan tim xuat ra khdng du ban. Anh nghi tai sao hg nudi<br /> hidu vd van dd nay, chdng tdi xin gidi thieu md dugc minh lai khdng nudi dugc, sau nhidu dem<br /> hinh nudi cua ddng didn hinh tai huyen Qudc tran trd anh quyei dinh chuydn sang nghd nudi<br /> Oai, Ha Ndi. cua trong rudng Ida. Ldc ddu anh tha 30 kg cua<br /> Ong Nguydn Quang Thdm - Tram trudng gidng, do thieu kinh nghiem, bd bao khdng<br /> Tram khuyen ndng huyen Qudc Oai, Ha chdc chdn, trdi mua cua bd di hei. Rdt kinh<br /> Ndi cho biei: Md hinh nudi cua ddng trong nghiem tu vu cua ddu tien, anh manh dan vay<br /> vdn ddu tu xay bd bao vdi tdng dien tich 7 sao<br /> dd nudi cua. Anh chia se kinh nghiem: Khi tha<br /> gid'ng cua can chgn nhung con to, khde, ddng<br /> ddu khdng bi gay cang, khdng bi benh. Nen tha<br /> vao mua xudn (thang 2, 3 duong lich, khi cdy<br /> Ida dugc 30 ngdy tudi). Mat do tha khoang 10<br /> con/m2, tha cua gid'ng sau 2 - 3 ngdy, tidn hanh<br /> cho an. Thdc an cho cua rat don gian, dd kiem,<br /> chu yeu lay dc buou xay nhd trdn vdi cam vien<br /> lai; tuan cho an 2 - 3 lan, nen cho an vdo budi<br /> chidu tu 5 - 6 gid. Mudn cho cua phdt tridn tdt<br /> <br /> (Xen tieop trang 29)<br /> <br /> KHOA HOC & CONG NGHE<br /> J<br />  PHO BIEN KIEN THLTC KHOA HOC KY THUAT<br /> <br /> <br /> <br /> Hiicc tieu ngudi co the lam ca chua boi thu<br /> bdng phdn khoang, ddng thdi<br /> Vien Mdi trudng Thuy Dien<br /> qua cung chiia nhidu protein<br /> tai Stockholm lai cho rdng<br /> hon vd an loan vdi ngudi tieu<br /> didu nay khdng thuc te vi<br /> ddng ban.<br /> lugng nudc tidu thu dugc tir<br /> Theo Pradhan: "Ddy la mot cac gia dinh qua nhd be: "Dii<br /> cdng nghe rat don gian, vi cdng nghe cd gia tri ddi vdi<br /> nudc tidu cd the thu hdi dd nhiing ngudi ndng dan ngheo<br /> dang tir nhd ve sinh" va ndi di chang niia thi khdng thd bao<br /> (Jng dung cua nudc tieu dd<br /> them "Neu cd sdn ca tro gd thi dam dugc viec cung cap nudc<br /> dugc mot cong trinh khoa hoc<br /> cang tdt vi bd sung dugc them tidu phuc vu trdng. trgt, ngay<br /> chimg minh: lam tdng ndng<br /> nhiing chai dinh dudng khac". ca ddi vdi mot trang trai nhd<br /> sudt cd chua.<br /> Ong danh gia, phuong phap be nhai. Cdn mudn tap trung<br /> Surendra Pradhan, mot nha nay rat hieu qua ddi vdi viing<br /> nudc tieu tir nhidu noi dd sir<br /> nghien ciiu sinh hgc mdi sdu viing xa, khd chuydn chd<br /> dung cho mot noi thi vdn gap<br /> trudng, thudc Trudng DH iphdn bdn, thudng ddt tidn, den<br /> phai van dd chuyen chd nhu<br /> Kuopio, Phdn Lan da trdng thi<br /> noi sir dung". the' nao mdi hgp ly day".<br /> nghiem cdy cd chua trong 3 Id<br /> cd che' do dinh dudng khac Vi la ngudi gdc Nepal nen Cdng trinh nghien ciiu nay<br /> nhau: Id 1 dugc bdn phan Pradhan se tridn khai mot dugc cdng bd tren Tap chi<br /> khoang. Id 2 - nudc tidu ngudi chuong trinh thir nghiem khd "Journal of Agricultural and<br /> va tro, Id 3 - chi nudc tidu. Idn tai Nepal vdo thang 11 nam Food Chemistry" (Tap chi<br /> Nang suat cua ca chua bdn nay. Tuy nhidn, H. Johansson, Hda hgc ndng nghiep vd<br /> bdng nudc tidu gidu dam, Idn mot chuyen gia vd he sinh thdi Thuc pham).<br /> va kali cao gap 4 Mn cay bdn ndng nghiep vd ve sinh tai Ngudn Kinh te nong thon<br /> <br /> chuyen anh Thuc tam su: Nudi cua ddng rat dd,<br /> ai cung nudi dugc, so vdi cay Ida thi nudi cua<br /> Qua dong de nvioi... ddng nhan va lai cao ban rat nhidu. Cung suy<br /> (Tiep theo trang 30) nghi vdi anh Huu, anh Nguydn Van Hay d thdn<br /> The' Try, xa NghTa Huong, huyen Qudc Oai,<br /> cung tan dung dien tich cay Ida cua gia dinh dd<br /> can thay nudc thudng xuyen, xung quanh thd nudi cua ddng. Anh cho biei: Tu khi nudi cua<br /> beo tay cho cua trii dn. Sau khi nudi dugc 3 ddng kinh td gia dinh dan ddn kha I6n, tdi ddy<br /> thdng bdt ddu thu tia, diing dd dat hoac thao anh du kien md rdng them dien tich nudi. Nudi<br /> can nudc dd bdt cua. Hien nay anh Ludng thu cua ddng trong rudng Ida, gia dinh anh Nguydn<br /> tir 20 - 50 kg/ngay vdi gia bdn cua thuong pham Huy Ludng cd ngudn thu binh quan tu 20 - 30<br /> tii 50.000 - 60.000 d/kg. trieu ddng/thang, ngoai ra anh cdn cung cap<br /> Tir md hinh cua anh Ludng, rdi nhidu ngudi gid'ng va tu van ky thuat cho cdc hd nudi cua d<br /> den tham quan hgc hdi va da thanh cdng nhu dia phuang.<br /> anh Vu Hiiu Thdc d xa Can Hun, huyen Qudc Hoang Ha (tdng hgp)<br /> Oai, Ha Ndi, nudi Iha cua ddng. Qua trd<br /> (Nguon: niengiamnongnghiep.vn)<br /> <br /> KHOA HOC & CONG NGHE<br />