{"id":666,"date":"2025-10-08T09:01:49","date_gmt":"2025-10-08T09:01:49","guid":{"rendered":"https:\/\/embedai.cloud\/?p=666"},"modified":"2025-10-08T09:01:51","modified_gmt":"2025-10-08T09:01:51","slug":"huong-dan-cham-soc-cay-bac-ha","status":"publish","type":"post","link":"https:\/\/supelamthao.vn\/?p=666","title":{"rendered":"H\u01b0\u1edbng d\u1eabn ch\u0103m s\u00f3c c\u00e2y b\u1ea1c h\u00e0"},"content":{"rendered":"\n

K\u1ef9 thu\u1eadt b\u00f3n ph\u00e2n cho c\u00e2y tr\u1ed3ng<\/strong><\/p>\n\n\n\n

T\u00f3m t\u1eaft: <\/strong>B\u00f3n ph\u00e2n cho c\u00e2y tr\u1ed3ng l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 t\u0103ng n\u0103ng su\u1ea5t n\u00f4ng s\u1ea3n, t\u0103ng ph\u1ea9m ch\u1ea5t v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m n\u00f4ng nghi\u1ec7p. Cho \u0111\u1ebfn nay, bi\u1ec7n ph\u00e1p b\u00f3n ph\u00e2n \u0111\u00e3 mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch thi\u1ebft th\u1ef1c.<\/p>\n\n\n\n

B\u00ean c\u1ea1nh nhi\u1ec1u n\u00f4ng d\u00e2n c\u00f3 hi\u1ec3u bi\u1ebft, c\u00f3 tr\u00ecnh \u0111\u1ed9 th\u00e2m canh, vi\u1ec7c s\u1eed d\u1ee5ng ph\u00e2n b\u00f3n \u0111\u00fang \u0111\u00e3 mang l\u1ea1i nh\u1eefng hi\u1ec7u qu\u1ea3 to l\u1edbn, c\u00f2n kh\u00e1 nhi\u1ec1u n\u00f4ng d\u00e2n hi\u1ec3u bi\u1ebft v\u1ec1 ph\u00e2n b\u00f3n v\u00e0 s\u1eed d\u1ee5ng ph\u00e2n b\u00f3n c\u00f2n c\u00f3 nh\u1eefng h\u1ea1n ch\u1ebf, do \u0111\u00f3 s\u1eed d\u1ee5ng ph\u00e2n b\u00f3n kh\u00f4ng \u0111\u00fang, thi\u1ebfu c\u00e2n \u0111\u1ed1i, thi\u1ebfu h\u1ee3p l\u00fd cho n\u00ean ch\u1ec9 mang l\u1ea1i hi\u1ec7u qu\u1ea3 th\u1ea5p, th\u1eadm ch\u00ed c\u00f2n l\u00e0m gi\u1ea3m n\u0103ng su\u1ea5t c\u00e2y tr\u1ed3ng, gi\u1ea3m ph\u1ea9m ch\u1ea5t, ch\u1ea5t l\u01b0\u1ee3ng n\u00f4ng s\u1ea3n, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 ph\u00ec nhi\u00eau c\u1ee7a \u0111\u1ea5t \u0111ai, l\u00e0m t\u0103ng \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng.<\/p>\n\n\n\n

\u0110\u1ecdc th\u00eam<\/a><\/p>\n\n\n\n

\u0110\u00e1nh gi\u00e1 dinh d\u01b0\u1ee1ng NPK trong b\u1ea1c h\u00e0<\/strong><\/p>\n\n\n\n

Th\u00ed nghi\u1ec7m nghi\u00ean c\u1ee9u \u1ea3nh h\u01b0\u1edfng c\u1ee7a c\u00e1c lo\u1ea1i g\u1ed1m x\u1ed1p k\u1ef9 thu\u1eadt v\u00e0 ph\u00e2n ch\u1eadm tan \u0111\u1ebfn sinh tr\u01b0\u1edfng, ph\u00e1t tri\u1ec3n v\u00e0 n\u0103ng su\u1ea5t ch\u1ea5t xanh c\u1ee7a c\u00e2y rau h\u00fang b\u1ea1c h\u00e0 (Mentha arvensis L.). Th\u00ed nghi\u1ec7m g\u1ed3m 2 y\u1ebfu t\u1ed1: y\u1ebfu t\u1ed1 ch\u00ednh l\u00e0 4 lo\u1ea1i g\u1ed1m x\u1ed1p k\u1ef9 thu\u1eadt k\u00fd hi\u1ec7u G1, G2, G3, G4; y\u1ebfu t\u1ed1 ph\u1ee5 l\u00e0 3 lo\u1ea1i ph\u00e2n ch\u1eadm tan P1, P2, P3. Th\u00ed nghi\u1ec7m nh\u1eafc l\u1ea1i 3 l\u1ea7n, b\u1ed1 tr\u00ed theo kh\u1ed1i ng\u1eabu nhi\u00ean ho\u00e0n to\u00e0n (RCB) t\u1ea1i nh\u00e0 l\u01b0\u1edbi c\u1ee7a Khoa N\u00f4ng h\u1ecdc, H\u1ecdc vi\u1ec7n N\u00f4ng nghi\u1ec7p Vi\u1ec7t Nam trong 2 v\u1ee5 Thu \u0111\u00f4ng 2014 v\u00e0 Xu\u00e2n h\u00e8 2015.<\/p>\n\n\n\n

K\u1ebft qu\u1ea3 th\u00ed nghi\u1ec7m cho th\u1ea5y c\u00e1c lo\u1ea1i g\u1ed1m k\u0129 thu\u1eadt do Vi\u1ec7t Nam ch\u1ebf t\u1ea1o c\u00f3 c\u00e1c \u0111\u1eb7c t\u00ednh x\u1ed1p, c\u00f3 kh\u1ea3 n\u0103ng d\u1ef1 tr\u1eef n\u01b0\u1edbc v\u00e0 dinh d\u01b0\u1ee1ng, gi\u00fap c\u00e2y rau h\u00fang b\u1ea1c h\u00e0 sinh tr\u01b0\u1edfng, ph\u00e1t tri\u1ec3n v\u00e0 cho n\u0103ng su\u1ea5t cao h\u01a1n khi tr\u1ed3ng tr\u00ean g\u1ed1m c\u1ee7a Trung Qu\u1ed1c. Lo\u1ea1i gi\u00e1 th\u1ec3 g\u1ed1m G1 v\u00e0 lo\u1ea1i ph\u00e2n ch\u1eadm tan P1 c\u00f3 t\u1ec9 l\u1ec7 NPK l\u00e0 20 : 20 : 15 th\u00edch h\u1ee3p nh\u1ea5t \u0111\u1ec3 tr\u1ed3ng c\u00e2y h\u00fang b\u1ea1c h\u00e0. V\u1ee5 Thu \u0111\u00f4ng th\u00edch h\u1ee3p cho c\u00e2y rau h\u00fang b\u1ea1c h\u00e0 sinh tr\u01b0\u1edfng, ph\u00e1t tri\u1ec3n v\u00e0 \u0111\u1ea1t n\u0103ng su\u1ea5t cao, n\u0103ng su\u1ea5t v\u1ee5 n\u00e0y cao g\u1ea5p 1,2 – 1,6 l\u1ea7n so v\u1edbi v\u1ee5 Xu\u00e2n h\u00e8<\/p>\n\n\n\n

<\/a>\u00a0\u0110\u1ecdc th\u00eam<\/a><\/p>\n\n\n\n

Ch\u01b0\u01a1ng tr\u00ecnh b\u00f3n ph\u00e2n t\u1ed1t nh\u1ea5t cho s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a b\u1ea1c h\u00e0 l\u00e0 g\u00ec?<\/strong><\/p>\n\n\n\n

Khuy\u1ebfn ngh\u1ecb b\u00f3n ph\u00e2n c\u1ee7a ch\u00fang t\u00f4i bao g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c nhu c\u1ea7u dinh d\u01b0\u1ee1ng m\u00e0 b\u1ea1c h\u00e0 c\u1ea7n trong t\u1ea5t c\u1ea3 c\u00e1c c\u1ea5p \u0111\u1ed9 ph\u00e1t tri\u1ec3n<\/strong><\/p>\n\n\n\n

\u0110\u1ea5t c\u1ea7n ph\u1ea3i l\u00e0 lo\u1ea1i tho\u00e1t n\u01b0\u1edbc t\u1ed1t<\/p>\n\n\n\n

Y\u00eau c\u1ea7u v\u1ec1 \u0111\u1ed9 ph\u00ec nhi\u00eau c\u1ee7a \u0111\u1ea5t tr\u01b0\u1edbc khi tr\u1ed3ng<\/strong><\/p>\n\n\n\n

Ch\u1ea5t dinh d\u01b0\u1ee1ng<\/strong><\/td>M\u1ee9c \u0111\u1ed9 ph\u00e2n b\u00f3n c\u1ea7n thi\u1ebft khi t\u01b0\u1edbi nh\u1ecf gi\u1ecdt<\/strong><\/td>M\u1ee9c \u0111\u1ed9 ph\u00e2n b\u00f3n c\u1ea7n thi\u1ebft khi t\u01b0\u1edbi phun m\u01b0a<\/strong><\/td><\/tr>
N<\/td>5 – 7 nitrat nit\u01a1<\/td>5 – 7 nitrat nit\u01a1<\/td><\/tr>
P<\/td>30 ppm<\/td>40 ppm<\/td><\/tr>
K<\/td>14 ppm (khi chi\u1ebft b\u1eb1ng Ca<\/sub>Cl2<\/sub>) ho\u1eb7c F = -3200 cal\/mol<\/td>\u0394F = -3000 cal\/mol<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Y\u00eau c\u1ea7u b\u00f3n ph\u00e2n gi\u1eefa c\u00e1c v\u1ee5 thu ho\u1ea1ch<\/strong><\/p>\n\n\n\n

Ch\u1ea5t dinh d\u01b0\u1ee1ng<\/strong><\/td>T\u1ef7 l\u1ec7 dinh d\u01b0\u1ee1ng c\u1ea7n thi\u1ebft
(n\u00ean th\u1ea5p ngay sau khi thu ho\u1ea1ch v\u00e0 ph\u00e1t tri\u1ec3n d\u1ea7n d\u1ea7n song song v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e2y)<\/strong><\/td><\/tr>
N<\/td>1 kg\/ha cho tu\u1ea7n \u0111\u1ea7u ti\u00ean sau khi thu ho\u1ea1ch, t\u1ed1i \u0111a 4 kg\/ha cho tu\u1ea7n tr\u01b0\u1edbc khi thu ho\u1ea1ch ti\u1ebfp theo. N\u00ean t\u1ed5ng s\u1ed1 N gi\u1eefa c\u00e1c l\u1ea7n thu ho\u1ea1ch l\u00e0 80 kg\/ha.
Trong tr\u01b0\u1eddng h\u1ee3p nu\u00f4i kh\u00f4ng c\u1ea7n \u0111\u1ea5t, c\u1ea7n s\u1eed d\u1ee5ng c\u00f4ng th\u1ee9c nh\u1ecf gi\u1ecdt nhi\u1ec1u N v\u1edbi NPK \u2013 S ch\u1ea5t l\u01b0\u1ee3ng cao (v\u00ed d\u1ee5: 12-5-10 +14S<\/a> ). B\u00f3n 70 ppm N v\u00e0o tu\u1ea7n \u0111\u1ea7u ti\u00ean sau khi thu ho\u1ea1ch v\u00e0 t\u0103ng l\u00ean \u0111\u1ebfn 120 ppm N v\u00e0o tu\u1ea7n tr\u01b0\u1edbc khi thu ho\u1ea1ch ti\u1ebfp theo.<\/td><\/tr>
P<\/td>T\u1ed5ng 10 kg\/ha P (15 kg\/ha) gi\u1eefa c\u00e1c l\u1ea7n thu ho\u1ea1ch.<\/td><\/tr>
K<\/td>T\u1ed5ng 40 kg\/ha K (87 kg\/ha) gi\u1eefa c\u00e1c l\u1ea7n thu ho\u1ea1ch.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Quy tr\u00ecnh l\u1ea5y m\u1eabu m\u00f4 th\u1ef1c v\u1eadt:<\/strong><\/p>\n\n\n\n

Giai \u0111o\u1ea1n ph\u00e1t tri\u1ec3n<\/strong><\/td>B\u1ed9 ph\u1eadn th\u1ef1c v\u1eadt<\/strong><\/td><\/tr>
\u1ede tu\u1ed5i trung b\u00ecnh<\/td>L\u00e1 non \u0111\u00e3 ph\u00e1t tri\u1ec3n \u0111\u1ea7y \u0111\u1ee7<\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"

K\u1ef9 thu\u1eadt b\u00f3n ph\u00e2n cho c\u00e2y tr\u1ed3ng T\u00f3m t\u1eaft: B\u00f3n ph\u00e2n cho c\u00e2y tr\u1ed3ng l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 t\u0103ng n\u0103ng su\u1ea5t […]<\/p>\n","protected":false},"author":1,"featured_media":667,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[40],"tags":[],"class_list":["post-666","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cac-loai-thao-moc"],"_links":{"self":[{"href":"https:\/\/supelamthao.vn\/index.php?rest_route=\/wp\/v2\/posts\/666","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/supelamthao.vn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/supelamthao.vn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/supelamthao.vn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/supelamthao.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=666"}],"version-history":[{"count":1,"href":"https:\/\/supelamthao.vn\/index.php?rest_route=\/wp\/v2\/posts\/666\/revisions"}],"predecessor-version":[{"id":668,"href":"https:\/\/supelamthao.vn\/index.php?rest_route=\/wp\/v2\/posts\/666\/revisions\/668"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/supelamthao.vn\/index.php?rest_route=\/wp\/v2\/media\/667"}],"wp:attachment":[{"href":"https:\/\/supelamthao.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=666"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/supelamthao.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=666"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/supelamthao.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=666"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}