{"id":3698,"date":"2017-06-22T15:21:45","date_gmt":"2017-06-22T08:21:45","guid":{"rendered":"http:\/\/wasi.org.vn\/?p=3698"},"modified":"2017-08-30T10:39:16","modified_gmt":"2017-08-30T03:39:16","slug":"thu-nghiem-bon-phan-npk-te-chua-can-xi-huu-hieu-cho-ca-phe-voi-giai-doan-kinh-doanh-tai-buon-ma-thuot","status":"publish","type":"post","link":"https:\/\/wasi.org.vn\/en\/thu-nghiem-bon-phan-npk-te-chua-can-xi-huu-hieu-cho-ca-phe-voi-giai-doan-kinh-doanh-tai-buon-ma-thuot\/","title":{"rendered":"TH\u1eec NGHI\u1ec6M B\u00d3N PH\u00c2N NPK-TE CH\u1ee8A CAN XI H\u1eeeU HI\u1ec6U CHO C\u00c0 PH\u00ca V\u1ed0I GIAI \u0110O\u1ea0N KINH DOANH T\u1ea0I BU\u00d4N MA THU\u1ed8T"},"content":{"rendered":"
\n

L\u00ea Th<\/strong>\u1ecb<\/strong> C\u1ea9m Nhung v\u00e0 c<\/strong>\u1ed9<\/strong>ng s\u1ef1<\/strong><\/span><\/p>\n

1.\u0110\u1eb7t v\u1ea5n \u0111\u1ec1<\/strong><\/span><\/p>\n

Ph\u00e2n b\u00f3n l\u00e0 ngu\u1ed3n cung c\u1ea5p dinh d\u01b0\u1ee1ng cho c\u00e2y v\u00e0 \u0111\u1ea5t. V\u00ec v\u1eady n\u1ebfu s\u1eed d\u1ee5ng ph\u00e2n b\u00f3n h\u1ee3p l\u00fd th\u00ec hi\u1ec7u qu\u1ea3 kinh t\u1ebf cao, v\u01b0\u1eddn c\u00e2y sinh tr\u01b0\u1edfng ph\u00e1t tri\u1ec3n t\u1ed1t, \u0111\u1ed9 ph\u00ec \u0111\u1ea5t \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n. Ng\u01b0\u1ee3c l\u1ea1i s\u1eed d\u1ee5ng ph\u00e2n b\u00f3n kh\u00f4ng c\u00e2n \u0111\u1ed1i ho\u1eb7c k\u00e9m ch\u1ea5t l\u01b0\u1ee3ng s\u1ebd \u1ea3nh h\u01b0\u1edfng nghi\u00eam tr\u1ecdng \u0111\u1ebfn c\u00e2y tr\u1ed3ng, n\u0103ng su\u1ea5t c\u0169ng nh\u01b0 \u0111\u1ea5t \u0111ai.<\/span><\/p>\n

Hi\u1ec7n nay ph\u00e2n b\u00f3n kho\u00e1ng r\u1ea5t \u0111a d\u1ea1ng v\u1ec1 ch\u1ee7ng lo\u1ea1i do \u0111\u00f3 c\u1ea7n l\u1ef1a ch\u1ecdn ph\u00e2n b\u00f3n ph\u00f9 h\u1ee3p c\u00f3 \u0111\u1ea7y \u0111\u1ee7 v\u00e0 c\u00e2n \u0111\u1ed1i c\u00e1c y\u1ebfu t\u1ed1 \u0111a trung vi l\u01b0\u1ee3ng, \u0111\u00e1p \u1ee9ng nhu c\u1ea7u dinh d\u01b0\u1ee1ng cho c\u00e2y tr\u1ed3ng. \u0110\u1eb7c bi\u1ec7t, \u0111\u1ea5t \u0111ai T\u00e2y Nguy\u00ean th\u01b0\u1eddng c\u00f3 pH th\u1ea5p v\u00ec v\u1eady nh\u1eefng lo\u1ea1i ph\u00e2n b\u00f3n NPK-TE c\u00e2n \u0111\u1ed1i dinh d\u01b0\u1ee1ng \u0111\u00e1p \u1ee9ng nhu c\u1ea7u c\u1ee7a c\u00e2y tr\u1ed3ng, c\u00f3 b\u1ed5 sung th\u00eam can xi h\u1eefu hi\u1ec7u s\u1ebd g\u00f3p ph\u1ea7n c\u1ea3i thi\u1ec7n pH, gi\u00fap \u0111\u1ea5t \u00edt chua h\u01a1n, n\u00e2ng cao \u0111\u1ed9 ph\u00ec cho \u0111\u1ea5t v\u00e0 t\u1ea1o \u0111i\u1ec1u ki\u1ec7n cho c\u00e1c vi sinh v\u1eadt c\u00f3 l\u1ee3i ph\u00e1t tri\u1ec3n.<\/span><\/p>\n

2.N\u1ed9i dung v\u00e0 ph\u01b0\u01a1ng ph\u00e1p <\/strong><\/span><\/p>\n

2.1. N\u1ed9i dung:\u00a0 <\/strong><\/span><\/p>\n

\u0110\u00e1nh gi\u00e1 \u1ea3nh h\u01b0\u1edfng c\u1ee7a ph\u00e2n b\u00f3n NPK-TE c\u00f3 b\u1ed5 sung trung vi l\u01b0\u1ee3ng \u0111\u1eb7c bi\u1ec7t l\u00e0 h\u00e0m l\u01b0\u1ee3ng can xi h\u1ee3p l\u00fd \u0111\u1ed1i v\u1edbi c\u00e2y c\u00e0 ph\u00ea v\u1ed1i kinh doanh \u1edf T\u00e2y Nguy\u00ean.<\/span><\/p>\n

2.2. Ph\u01b0\u01a1ng ph\u00e1p <\/strong><\/span><\/p>\n

Th\u1eed nghi\u1ec7m \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed theo \u00f4 l\u1edbn, kh\u00f4ng l\u1eb7p l\u1ea1i, di\u1ec7n t\u00edch 0,3 ha\/c\u00f4ng th\u1ee9c; tr\u00ean v\u01b0\u1eddn c\u00e0 ph\u00ea v\u1ed1i kinh doanh c\u00f3 n\u0103ng su\u1ea5t trung b\u00ecnh, d\u1ef1 ki\u1ebfn 4 t\u1ea5n nh\u00e2n\/ha.<\/span><\/p>\n

+ C\u00f4ng th\u1ee9c 1 (CT 1): \u0111\u1ed1i ch\u1ee9ng, b\u00f3n ph\u00e2n \u0111\u01a1n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (330 N – 145 P2<\/sub>O5 <\/sub>– 330 K2<\/sub>O)<\/span><\/p>\n

+ C\u00f4ng th\u1ee9c 2 (CT 2): b\u00f3n ph\u00e2n NPK-TE ph\u1ed5 th\u00f4ng (345 N – 240 P2<\/sub>O5 <\/sub>– 285 K2<\/sub>O)<\/span><\/p>\n

+ C\u00f4ng th\u1ee9c 3 (CT 3): b\u00f3n ph\u00e2n NPK-TE c\u00f3 can xi\u00a0\u00a0 (300 N – 225 P2<\/sub>O5 <\/sub>– 250 K2<\/sub>O)<\/span><\/p>\n

Ch\u1ec9 ti\u00eau <\/strong>v\u00e0 ph\u01b0\u01a1ng ph\u00e1p <\/strong>theo d\u00f5i:<\/strong><\/span><\/p>\n

– T\u1ef7 l\u1ec7 \u0111\u1eadu r\u1ee5ng qu\u1ea3:<\/em> Theo d\u00f5i t\u1ef7 l\u1ec7 \u0111\u1eadu qu\u1ea3, r\u1ee5ng qu\u1ea3 b\u1eb1ng c\u00e1ch c\u1ed9t d\u00e2y \u0111\u00e1nh d\u1ea5u v\u00e0 theo d\u00f5i c\u1ed1 \u0111\u1ecbnh 5 \u0111i\u1ec3m tr\u00ean m\u1ed7i c\u00f4ng th\u1ee9c, m\u1ed7i \u0111i\u1ec3m theo d\u00f5i c\u1ed1 \u0111\u1ecbnh 5 c\u00e2y, m\u1ed7i c\u00e2y 4 c\u00e0nh theo 4 h\u01b0\u1edbng \u1edf v\u1ecb tr\u00ed gi\u1eefa c\u00e2y. M\u1ed7i c\u00e0nh quan tr\u1eafc 5 \u0111\u1ed1t . \u0110\u1ebfm s\u1ed1 qu\u1ea3 hi\u1ec7n th\u1eddi tr\u00ean \u0111\u1ed1t v\u00e0 x\u00e1c \u0111\u1ecbnh s\u1ed1 qu\u1ea3 r\u1ee5ng qua m\u1ed7i l\u1ea7n theo d\u00f5i.<\/span><\/p>\n

\u0110\u1ebfm t\u1ed5ng s\u1ed1 qu\u1ea3 tr\u00ean c\u00e1c ch\u00f9m v\u00e0o c\u00e1c th\u1eddi \u0111i\u1ec3m: th\u00e1ng 3, 5, 7, 9.<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u2211 qu\u1ea3 r\u1ee5ng<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0T\u1ef7 l\u1ec7 qu\u1ea3 r\u1ee5ng (%) =\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u2014\u2014\u2014\u2014\u2014\u00a0\u00a0 x 100<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u2211 s\u1ed1 qu\u1ea3<\/span><\/p>\n

\u00a0<\/em><\/span><\/p>\n

– H\u00f3a t\u00ednh \u0111\u1ea5t:<\/em> L\u1ea5y m\u1eabu \u0111\u1ea5t theo 5 \u0111i\u1ec3m ch\u00e9o g\u00f3c c\u1ee7a m\u1ed7i c\u00f4ng th\u1ee9c, \u0111\u1ed9 s\u00e2u l\u1ea5y m\u1eabu 0 \u2013 30 cm. L\u1ea5y m\u1eabu \u0111\u1ea5t theo h\u00ecnh chi\u1ebfu c\u1ee7a t\u00e1n c\u00e0 ph\u00ea. L\u1ea5y \u1edf v\u1ecb tr\u00ed trong m\u00e9p b\u1ed3n. M\u1ed7i \u0111i\u1ec3m l\u1ea5y 300g, t\u1ea5t c\u1ea3 5 \u0111i\u1ec3m thu \u0111\u01b0\u1ee3c m\u1eabu 1.5 kg.<\/span><\/p>\n

M\u1eabu \u0111\u1ea5t \u0111\u01b0\u1ee3c b\u1ea3o qu\u1ea3n v\u00e0 mang v\u1ec1 ph\u00f2ng th\u00ed nghi\u1ec7m ph\u00e2n t\u00edch c\u00e1c ch\u1ec9 ti\u00eau: H\u1eefu c\u01a1 t\u1ed5ng s\u1ed1, pHKCl<\/sub> N %, P2<\/sub>O5<\/sub>dt, K2<\/sub>Odt, Ca2+<\/sup><\/span><\/p>\n

Th\u1eddi \u0111i\u1ec3m l\u1ea5y m\u1eabu: tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh b\u00f3n ph\u00e2n v\u00e0 sau 15, 30 ng\u00e0y c\u1ee7a c\u00e1c \u0111\u1ee3t b\u00f3n ph\u00e2n.<\/span><\/p>\n

\u00a0\u00a0\u00a0 – L\u1ea5y m\u1eabu qu\u1ea3 ph\u00e2n t\u00edch ch\u1ea5t l\u01b0\u1ee3ng c\u00e0 ph\u00ea nh\u00e2n s\u1ed1ng:<\/em> \u1ede m\u1ed7i \u00f4 tr\u01b0\u1edbc khi thu ho\u1ea1ch r\u1ed9 1 ng\u00e0y ti\u1ebfn h\u00e0nh thu h\u00e1i c\u00e1c qu\u1ea3 ch\u00edn tr\u00ean c\u00e1c \u00f4, m\u1ed7i \u00f4 3 kg c\u00e0 ph\u00ea qu\u1ea3 t\u01b0\u01a1i \u0111\u1ec3 ti\u1ebfn h\u00e0nh x\u00e1c \u0111\u1ecbnh c\u00e1c ch\u1ec9 ti\u00eau ch\u1ea5t l\u01b0\u1ee3ng nh\u01b0: tr\u1ecdng l\u01b0\u1ee3ng 100 nh\u00e2n, t\u1ef7 l\u1ec7 t\u01b0\u01a1i nh\u00e2n, \u1ea9m \u0111\u1ed9, t\u1ef7 l\u1ec7 kh\u1ed1i t\u01b0\u1ee3ng h\u1ea1t tr\u00ean c\u00e1c c\u1ee1 s\u00e0ng, ph\u00e2n t\u00edch theo TCVN 4193-2005.<\/span><\/p>\n

3.K\u1ebft qu\u1ea3 <\/strong><\/span><\/p>\n

3.1. \u1ea2nh h\u01b0\u1edfng c\u1ee7a ph\u00e2n b\u00f3n \u0111\u1ebfn t\u1ef7 l\u1ec7 qu\u1ea3 r\u1ee5ng <\/strong><\/span><\/p>\n

B\u1ea3ng 1. T\u1ef7 l\u1ec7 qu\u1ea3 r\u1ee5ng (%)<\/span><\/h1>\n\n\n\n\n\n\n\n
\n

C\u00f4ng th\u1ee9c<\/strong><\/span><\/p>\n<\/td>\n

\n

Th\u00e1ng 5<\/strong><\/span><\/p>\n<\/td>\n

\n

Th\u00e1ng 7<\/strong><\/span><\/p>\n<\/td>\n

\n

Th\u00e1ng 9<\/strong><\/span><\/p>\n<\/td>\n

\n

tt<\/sub><\/strong><\/span><\/p>\n<\/td>\n

\n

tb<\/sub><\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

CT 1<\/span><\/p>\n<\/td>\n

\n

16,00<\/span><\/p>\n<\/td>\n

\n

41,80<\/span><\/p>\n<\/td>\n

\n

51,43<\/span><\/p>\n<\/td>\n

\n

0,001NS<\/sup><\/span><\/p>\n<\/td>\n

\n

1,97<\/span><\/p>\n<\/td>\n<\/tr>\n

\n

CT 3<\/span><\/p>\n<\/td>\n

\n

21,42<\/span><\/p>\n<\/td>\n

\n

31,79<\/span><\/p>\n<\/td>\n

\n

49,95<\/span><\/p>\n<\/td>\n<\/tr>\n

\n

CT 2<\/span><\/p>\n<\/td>\n

\n

17,97<\/span><\/p>\n<\/td>\n

\n

33,11<\/span><\/p>\n<\/td>\n

\n

51,73<\/span><\/p>\n<\/td>\n

\n

0,61NS<\/sup><\/span><\/p>\n<\/td>\n

\n

1,97<\/span><\/p>\n<\/td>\n<\/tr>\n

\n

CT 3<\/span><\/p>\n<\/td>\n

\n

21,42<\/span><\/p>\n<\/td>\n

\n

31,79<\/span><\/p>\n<\/td>\n

\n

49,95<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Ghi ch\u00fa:\u00a0 NS: kh\u00f4ng c\u00f3 \u00fd ngh\u0129a\u00a0\u00a0\u00a0\u00a0\u00a0 tt<\/sub>: T \u2013 test t\u00ednh\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 tb<\/sub>: T \u2013 test b\u1ea3ng<\/em><\/span><\/p>\n

B\u1ea3ng 1 cho th\u1ea5y t\u1ef7 l\u1ec7 r\u1ee5ng qu\u1ea3 c\u00e0 ph\u00ea t\u1ea1i c\u00e1c c\u00f4ng th\u1ee9c giai \u0111o\u1ea1n t\u1eeb th\u00e1ng 5 \u0111\u1ebfn th\u00e1ng 7 \u0111\u1ec1u t\u0103ng, nh\u01b0ng chi\u1ec1u h\u01b0\u1edbng ch\u01b0a c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t r\u00f5 gi\u1eefa c\u00e1c c\u00f4ng th\u1ee9c ph\u00e2n. T\u1ef7 l\u1ec7 r\u1ee5ng qu\u1ea3 c\u1ed9ng d\u1ed3n (\u0111\u1ebfn th\u00e1ng 9, khi qu\u1ea3 \u0111\u00e3 \u1ed5n \u0111\u1ecbnh) c\u1ee7a c\u00f4ng th\u1ee9c 3 (NPK-TE c\u00f3 can xi) l\u00e0 th\u1ea5p nh\u1ea5t v\u1edbi 49,95 % v\u00e0 cao nh\u1ea5t l\u00e0 c\u00f4ng th\u1ee9c 2 (b\u00f3n NPK ph\u1ed5 th\u00f4ng) v\u1edbi 51,73 %. Tuy nhi\u00ean s\u1ef1 kh\u00e1c bi\u1ec7t khi so s\u00e1nh gi\u1eefa NPK v\u1edbi \u0111\u1ed1i ch\u1ee9ng ph\u00e2n \u0111\u01a1n (gi\u1eefa c\u00e1c c\u1eb7p c\u00f4ng th\u1ee9c 1, 3 v\u00e0 2, 3) l\u00e0 kh\u00f4ng c\u00f3 \u00fd ngh\u0129a th\u1ed1ng k\u00ea.<\/span><\/p>\n

3.2. \u1ea2nh h\u01b0\u1edfng c\u1ee7a ph\u00e2n b\u00f3n \u0111\u1ebfn \u0111\u1ed9 ph\u00ec \u0111\u1ea5t<\/strong><\/span><\/p>\n

<\/a>B\u1ea3ng 2. \u1ea2nh h\u01b0\u1edfng c\u1ee7a ph\u00e2n b\u00f3n \u0111\u1ebfn \u0111\u1ed9 ph\u00ec \u0111\u1ea5t<\/span><\/h1>\n\n\n\n\n\n\n\n\n\n\n
\n

Ch\u1ec9 ti\u00eau<\/strong><\/span><\/p>\n<\/td>\n

\n

Tr\u01b0\u1edbc th\u1eed nghi\u1ec7m<\/strong><\/span><\/p>\n<\/td>\n

\n

Sau th\u1eed nghi\u1ec7m<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

CT 1<\/strong><\/span><\/p>\n<\/td>\n

\n

CT 2<\/strong><\/span><\/p>\n<\/td>\n

\n

CT 3<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

pHKCl<\/sub><\/span><\/p>\n<\/td>\n

\n

\u00a0 3,83<\/span><\/p>\n<\/td>\n

\n

\u00a0 3,97<\/span><\/p>\n<\/td>\n

\n

\u00a0 4,14<\/span><\/p>\n<\/td>\n

\n

\u00a0 4,13<\/span><\/p>\n<\/td>\n<\/tr>\n

\n

H\u1eefu c\u01a1 t\u1ed5ng s\u1ed1<\/sub> (%)<\/span><\/p>\n<\/td>\n

\n

\u00a0 4,31<\/span><\/p>\n<\/td>\n

\n

\u00a0 4,66<\/strong><\/span><\/p>\n<\/td>\n

\n

\u00a0 4,95<\/strong><\/span><\/p>\n<\/td>\n

\n

\u00a0 5,17<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

N t\u1ed5ng s\u1ed1<\/sub> (%)<\/span><\/p>\n<\/td>\n

\n

\u00a0 0,17<\/span><\/p>\n<\/td>\n

\n

\u00a0 0,17<\/span><\/p>\n<\/td>\n

\n

\u00a0 0,19<\/span><\/p>\n<\/td>\n

\n

\u00a0 0,19<\/span><\/p>\n<\/td>\n<\/tr>\n

\n

P2<\/sub>O5d\u1ec5 ti\u00eau<\/sub>(mg\/100g)<\/span><\/p>\n<\/td>\n

\n

\u00a0 7,75<\/span><\/p>\n<\/td>\n

\n

\u00a0 5,52<\/strong><\/span><\/p>\n<\/td>\n

\n

\u00a0 3,69<\/strong><\/span><\/p>\n<\/td>\n

\n

\u00a0 5,69<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

K2<\/sub>Od\u1ec5 ti\u00eau<\/sub> (mg\/100g)<\/span><\/p>\n<\/td>\n

\n

14,30<\/span><\/p>\n<\/td>\n

\n

12,07<\/strong><\/span><\/p>\n<\/td>\n

\n

11,38<\/strong><\/span><\/p>\n<\/td>\n

\n

15,28<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

Ca2+ <\/sup>trao \u0111\u1ed5i<\/sub>(ldl\/100g)<\/span><\/p>\n<\/td>\n

\n

\u00a0 1,45<\/span><\/p>\n<\/td>\n

\n

\u00a0 0,53<\/span><\/p>\n<\/td>\n

\n

\u00a0 1,81<\/span><\/p>\n<\/td>\n

\n

\u00a0 2,22<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong>pH \u0111\u1ea5t tr\u01b0\u1edbc th\u1eed nghi\u1ec7m th\u1ea5p ch\u1ec9 3,83, \u0111\u1ea5t c\u00f3 ph\u1ea3n \u1ee9ng chua, \u0111\u00e2y c\u0169ng l\u00e0 th\u1ef1c tr\u1ea1ng chung c\u1ee7a \u0111\u1ea5t tr\u1ed3ng c\u00e0 ph\u00ea \u1edf T\u00e2y Nguy\u00ean. Sau th\u1eed nghi\u1ec7m pH \u0111\u1ea5t ph\u00e2n h\u00f3a m\u1ea1nh, b\u00f3n ph\u00e2n \u0111\u01a1n (CT1 – \u0110C) kh\u00f4ng \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n\u00a0 (pH 3,97); b\u00f3n ph\u00e2n NPK (CT2, CT3) c\u00e1c y\u1ebfu t\u1ed1 trung vi l\u01b0\u1ee3ng \u0111\u00e3 l\u00e0m gi\u1ea3m \u0111\u1ed9 chua \u0111\u1ea5t \u0111\u00e1ng k\u1ec3 (pH t\u0103ng l\u00ean m\u1ee9c 4,1). V\u00ec ph\u00e2n NPK s\u1eed d\u1ee5ng t\u1ea1i CT 2, 3 c\u00f3 b\u1ed5 sung trung vi l\u01b0\u1ee3ng (TE) \u0111\u1eb7c bi\u1ec7t l\u00e0 canxi g\u00f3p ph\u1ea7n gi\u1ea3m \u0111\u1ed9 chua cho \u0111\u1ea5t.<\/span><\/p>\n

\u00a0Do v\u01b0\u1eddn c\u00e2y \u0111\u01b0\u1ee3c b\u00f3n ph\u00e2n h\u1eefu c\u01a1 h\u00e0ng n\u0103m, \u0111\u1ed3ng th\u1eddi c\u00e2y c\u00e0 ph\u00ea \u0111\u00e3 giao t\u00e1n, t\u00e0n d\u01b0 th\u1ef1c v\u1eadt (c\u00e0nh, l\u00e1 c\u00e0 ph\u00ea, c\u1ecf d\u1ea1i,\u2026) d\u1eabn \u0111\u1ebfn h\u00e0m l\u01b0\u1ee3ng h\u1eefu c\u01a1 t\u1ed5ng s\u1ed1 t\u1ea1i c\u00e1c c\u00f4ng th\u1ee9c \u0111\u1ec1u r\u1ea5t cao (> 4%). Sau th\u1eed nghi\u1ec7m h\u00e0m l\u01b0\u1ee3ng h\u1eefu c\u01a1 \u0111\u1ec1u t\u0103ng v\u00e0 t\u0103ng m\u1ea1nh nh\u1ea5t l\u00e0 CT 3 (5,17 %, +0,86%). CT2, 3 s\u1eed d\u1ee5ng ph\u00e2n NPK c\u00f3 h\u00e0m l\u01b0\u1ee3ng trung vi l\u01b0\u1ee3ng gi\u00fap \u0111\u1ea5t c\u1ea3i thi\u1ec7n \u0111\u1ed9 chua, t\u1ea1o \u0111i\u1ec1u ki\u1ec7n cho vi sinh v\u1eadt ph\u00e1t tri\u1ec3n ph\u00e2n gi\u1ea3i h\u1eefu c\u01a1 t\u1ed1t h\u01a1n so v\u1edbi CT1.<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u0110\u1ea1m t\u1ed5ng s\u1ed1 kh\u00f4ng bi\u1ebfn \u0111\u1ed9ng nhi\u1ec1u, c\u00f3 t\u0103ng nh\u1eb9 \u1edf hai c\u00f4ng th\u1ee9c b\u00f3n NPK.<\/span><\/p>\n

L\u00e2n d\u1ec5 ti\u00eau tr\u01b0\u1edbc th\u1eed nghi\u1ec7m \u1edf m\u1ee9c gi\u00e0u (7,75 mg\/100g), nh\u01b0ng sau th\u1eed nghi\u1ec7m c\u1ea3 3 c\u00f4ng th\u1ee9c \u0111\u1ec1u gi\u1ea3m, gi\u1ea3m m\u1ea1nh \u1edf CT2\u00a0 b\u00f3n NPK ph\u1ed5 th\u00f4ng (3,69 mg\/100g).<\/span><\/p>\n

Kali d\u1ec5 ti\u00eau c\u00f3 s\u1ef1 bi\u1ebfn \u0111\u1ed9ng theo hai chi\u1ec1u h\u01b0\u1edbng, CT3 (b\u00f3n NPK-TE c\u00f3 can xi) t\u0103ng nh\u1eb9 v\u00e0 hai c\u00f4ng th\u1ee9c c\u00f2n l\u1ea1i gi\u1ea3m nh\u1eb9.<\/span><\/p>\n

Canxi trao \u0111\u1ed5i tr\u01b0\u1edbc th\u1eed nghi\u1ec7m \u1edf m\u1ee9c th\u1ea5p. Sau th\u1eed nghi\u1ec7m bi\u1ebfn \u0111\u1ed9ng, gi\u1ea3m m\u1ea1nh \u1edf CT 1 v\u00ec c\u00f4ng th\u1ee9c n\u00e0y ch\u1ec9 b\u00f3n ph\u00e2n \u0111\u01a1n kh\u00f4ng b\u1ed5 sung trung vi l\u01b0\u1ee3ng v\u00e0 \u0111\u1eb7c bi\u1ec7t l\u00e0 canxi n\u00ean l\u01b0\u1ee3ng canxi trao \u0111\u1ed5i trong \u0111\u1ea5t gi\u1ea3m.\u00a0 H\u00e0m l\u01b0\u1ee3ng canxi trao \u0111\u1ed5i t\u0103ng l\u00ean \u1edf hai c\u00f4ng th\u1ee9c b\u00f3n NPK (CT2, CT3) \u0111\u1eb7c bi\u1ec7t \u1edf CT3 (b\u00f3n NPK-TE c\u00f3 can xi h\u1eefu hi\u1ec7u) \u0111\u00e3 t\u0103ng kh\u00e1 m\u1ea1nh (2,22 ldl\/100g).<\/span><\/p>\n

3.3. \u1ea2nh h\u01b0\u1edfng c\u1ee7a ph\u00e2n b\u00f3n \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng c\u00e0 ph\u00ea nh\u00e2n s\u1ed1ng<\/strong><\/span><\/p>\n

<\/a>B\u1ea3ng 3. Ch\u1ea5t l\u01b0\u1ee3ng c\u00e0 ph\u00ea nh\u00e2n s\u1ed1ng<\/span><\/p>\n\n\n\n\n\n\n
\n

C\u00f4ng th\u1ee9c<\/strong><\/span><\/p>\n<\/td>\n

\n

Kh\u1ed1i l\u01b0\u1ee3ng 100 nh\u00e2n (g)<\/strong><\/span><\/p>\n<\/td>\n

\n

T\u1ef7 l\u1ec7 h\u1ea1t tr\u00f2n\u00a0 (%)<\/strong><\/span><\/p>\n<\/td>\n

\n

T\u1ef7 l\u1ec7 <\/strong><\/span><\/p>\n

t\u01b0\u01a1i\/nh\u00e2n<\/strong><\/span><\/p>\n<\/td>\n

\n

T\u1ef7 l\u1ec7 (%)
\n tr\u00ean c\u1ee1 s\u00e0ng 16<\/strong><\/span><\/p>\n<\/td>\n

\n

T\u1ef7 l\u1ec7 (%)
\n d\u01b0\u1edbi c\u1ee1 s\u00e0ng 16<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

CT 1<\/span><\/p>\n<\/td>\n

\n

17,20<\/span><\/p>\n<\/td>\n

\n

7,50<\/span><\/p>\n<\/td>\n

\n

4,61<\/span><\/p>\n<\/td>\n

\n

79,00<\/span><\/p>\n<\/td>\n

\n

21,00<\/span><\/p>\n<\/td>\n<\/tr>\n

\n

CT 2<\/span><\/p>\n<\/td>\n

\n

16,90<\/span><\/p>\n<\/td>\n

\n

7,70<\/span><\/p>\n<\/td>\n

\n

4,70<\/span><\/p>\n<\/td>\n

\n

77,49<\/span><\/p>\n<\/td>\n

\n

22,51<\/span><\/p>\n<\/td>\n<\/tr>\n

\n

CT 3<\/span><\/p>\n<\/td>\n

\n

17,10<\/span><\/p>\n<\/td>\n

\n

8,80<\/span><\/p>\n<\/td>\n

\n

4,56<\/span><\/p>\n<\/td>\n

\n

78,33<\/span><\/p>\n<\/td>\n

\n

21,67<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

B\u1ea3ng 3 cho th\u1ea5y ch\u1ea5t l\u01b0\u1ee3ng c\u00e0 ph\u00ea nh\u00e2n s\u1ed1ng ch\u01b0a kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c c\u00f4ng th\u1ee9c.<\/span><\/p>\n

4.K\u1ebft lu\u1eadn<\/strong><\/span><\/p>\n

T\u1ef7 l\u1ec7 qu\u1ea3 r\u1ee5ng v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng c\u00e0 ph\u00ea nh\u00e2n s\u1ed1ng ch\u01b0a c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t c\u00e1c c\u00f4ng th\u1ee9c ph\u00e2n b\u00f3n. B\u00f3n NPK-TE c\u00f3 can xi h\u1eefu hi\u1ec7u b\u01b0\u1edbc \u0111\u1ea7u \u0111\u00e3 c\u00f3 s\u1ef1 c\u1ea3i thi\u1ec7n \u0111\u1ed9 ph\u00ec \u0111\u1ea5t cho v\u01b0\u1eddn c\u00e0 ph\u00ea kinh doanh; t\u0103ng pH \u0111\u1ea5t, c\u1ea3i thi\u1ec7n h\u00e0m l\u01b0\u1ee3ng h\u1eefu c\u01a1, NPK v\u00e0 can xi.<\/span><\/p>\n

\u00a0<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

L\u00ea Th\u1ecb C\u1ea9m Nhung v\u00e0 c\u1ed9ng s\u1ef1 1.\u0110\u1eb7t v\u1ea5n \u0111\u1ec1 Ph\u00e2n b\u00f3n l\u00e0 ngu\u1ed3n cung c\u1ea5p dinh d\u01b0\u1ee1ng cho c\u00e2y v\u00e0 \u0111\u1ea5t. V\u00ec v\u1eady n\u1ebfu s\u1eed d\u1ee5ng ph\u00e2n b\u00f3n h\u1ee3p l\u00fd th\u00ec hi\u1ec7u qu\u1ea3 kinh t\u1ebf cao, v\u01b0\u1eddn c\u00e2y sinh tr\u01b0\u1edfng ph\u00e1t tri\u1ec3n t\u1ed1t, \u0111\u1ed9 ph\u00ec \u0111\u1ea5t \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n. Ng\u01b0\u1ee3c l\u1ea1i s\u1eed d\u1ee5ng ph\u00e2n b\u00f3n kh\u00f4ng c\u00e2n \u0111\u1ed1i ho\u1eb7c k\u00e9m ch\u1ea5t l\u01b0\u1ee3ng s\u1ebd \u1ea3nh h\u01b0\u1edfng nghi\u00eam tr\u1ecdng \u0111\u1ebfn c\u00e2y…<\/p>\n","protected":false},"author":1,"featured_media":3703,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-3698","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ket-qua-nguyen-cuu"],"_links":{"self":[{"href":"https:\/\/wasi.org.vn\/en\/wp-json\/wp\/v2\/posts\/3698","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wasi.org.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wasi.org.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wasi.org.vn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wasi.org.vn\/en\/wp-json\/wp\/v2\/comments?post=3698"}],"version-history":[{"count":0,"href":"https:\/\/wasi.org.vn\/en\/wp-json\/wp\/v2\/posts\/3698\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wasi.org.vn\/en\/wp-json\/wp\/v2\/media\/3703"}],"wp:attachment":[{"href":"https:\/\/wasi.org.vn\/en\/wp-json\/wp\/v2\/media?parent=3698"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wasi.org.vn\/en\/wp-json\/wp\/v2\/categories?post=3698"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wasi.org.vn\/en\/wp-json\/wp\/v2\/tags?post=3698"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}