đại học cần thơ - khoa nông nghiệp giáo trình giảng dạy trực tuyến QJ 7S &ĂQ 7K 7HO )D[ :HEVLWH KWWSZZZFWXHGXYQNQQ HPDLO GPLQK#FWXHGXYQ YWDQK#FWXHGXYQ Giáo trình môn học: Hoa màu (bắp - đậu xanh - khoai lang) phần: khoai lang chơng 2. đặc điểm sinh học Biên soạn Dơng Minh, giảng viên &KQJ ig& i,j}0 6,1+ +2& &h< .+2$, /$1* ig& 7q1+ 7+m& 9h7 ,SRPRHD EDWDWDV 3RLU WKXF KR EP EP &RQYROYXODFHDH OD ORDL F\ WKQ WKDR FR PX WKQ YD FX WKQJ ER KD\ OHR ,EDWDWDV OD ORDL GX\ QKW FXD FKL ,SRPRHD WURQJ V ORDL FR FX Q GF 1R FR WK VQJ D QLQ QKQJ WKQJ FK F WUQJ W WKDQJ 0W WK QJKLP WUQJ WURQJ QKD NQK +RD N\ FKR WK\ PW G\ NKRDL ODQJ WUQJ QP FR WK FKR FX QQJ Q NJ OEV lt KRP JLP +RP EW X EHQ U W QJD\ VDX NKL JLP X WLQ FR PW WK JQ PW W VDR R Q QKQJ PW N WLS 0L PW WUQ KRP FR WK FKR U QKQJ WKQJ FK FR U &DF U PRF QKQJ PW JQ PW W FDQJ WR PS VH G FKR FX VDX QD\ U NKRDL ODQJ WUQJ W KRP FR WK PRF ODQ UQJ FP YD VX Q FP NKL JS W [S X P lt F\ FRQ JLHR KW 6DX QJD\ F\ UD U FKDQK QJD\ VDX VH UD U SKX KQK GDQJ YD NFK WKF NKRDL ODQJ FR ORDL U SKX 1KR WUQJ WKQJ SKDW WULQ OS W PW YD PRF QKLX QKW WURQJ WKDQJ X WLQ /RDL U QD\ DP QKLP YLF FXQJ FS QF YD GQJ OLX FKR F\ SKDW WULQ 7X\ QKLQ WURQJ JLDL RDQ WDR FX QX QKLX U SKX QQJ VXW FX VH JLDP F /D FDF U FR NKD QQJ FKR FX QKQJ JS LX NLQ EW OL QQ NKQJ SKDW WULQ F FR QJ NQK NKRDQJ FP UW GDL QKLX [ i\ OD ORDL U Y GXQJ ODP WLX KDR GQJ OLX QXL F\ FX lt JLQJ VP QR F WDR UD NKRDQJ QJD\ VDX NKL WUQJ JLQJ PXQ NKRDQJ QJD\ 7KL JLDQ WDR U FX WKD\ L WX\ JLQJ YD PL WUQJ FX F WDR OS W PW VX FP WUQ QKQJ PW KRP JQ PW W PW WK &X EW X SKDW WULQ WKHR FKLX GDL WUF VDX R PL SKDW WULQ WKHR QJ NQK YD QKDQK QKW 'QJ 0LQK *LDR WUQK PQ d+RD 0DXe .KRD 1QJ QJKLS i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iLX NLQ QJRDL FDQK UW DQK KQJ Q V UD KRD lt QKLW L QKLW P YD QJD\ QJQ QQ NKRDL ODQJ UD KRD YD WKX SKQ WQJ L G 4XDQJ N\ FQJ VDQJ QKLW 'QJ 0LQK *LDR WUQK PQ d+RD 0DXe .KRD 1QJ QJKLS i+&7 70 YX OQJ GQJ OLX PW FKP VRF X DQK KQJ Q V UD KRD iDQJ OXF UD KRD QX QKLW FDR PD QKLX VH ODP KRD UXQJ 'R R PXD KH PLQ %F WKQJ W WK\ KRD NKRDL ODQJ 7DL Q L PXQ NKRDL ODQJ UD KRD QJL WD SKDL FKRQ QKQJ F\ D FKX ODQK WURQJ PXD QJ WUF YD HP WUQJ QL P YDR PXD [XQ 1Q [HQ EW WKQ OD NFK WKFK F\ UD KRD 1KLW FDR YD P YD SKDL VH JLXS NKRDL ODQJ UD KRD G GDQJ iLX NLQ FDQK WDF YD GLQK GQJ FXQJ OD \X W DQK KQJ Q V UD KRD &\ WUQJ WKD YD WQJ WUQJ NHP X G UD KRD KQ 7X\ NKRDL ODQJ OD F\ QJD\ QJQ QKQJ FXQJ FR JLQJ WUXQJ WQK KD\ W E TXDQJ FDP i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v 75n1+ 7$2 &8t lt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d+RD 0DXe .KRD 1QJ QJKLS i+&7 71 7QJ WUQJ *LDL RDQ SKQ KRD FXD U FX FX WKQJ F WDR WKDQK W FDF PW KRP QP JQ PW W &DF KRP QJRQ FR U FX PRF PDQK QKW [XW KLQ UR GDQJ QJD\ VDX NKL W KRP 7URQJ LX NLQ WKXQ WLQ U FX VH SKDW WULQ WKDQK FX QX NKQJ VH WU WKDQK U F 100 7KQ OD 80 60 FX 40 7URQJ OQJ FX 20 7KL JLDQ +QK 0F WQJ WUQ J WKQ OD YD FX FXD F\ NKRDL ODQJ WKHR WKL JLDQ lt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iF WQK JLQJ YD SKP FKW FXD KRP OQJ FX NFK WKF WKL JLDQ SKDW WULQ FXD FX FDF JLQJ WKQJ NKDF QKDX 3KP FKW KRP FXQJ DQK KQJ Q V SKDW WULQ FXD FX +RP JLQJ PS PDQK YD QKLX PW VH FKR FX WW KRP JLD \X GR E KDQ WKLX GLQK GQJ WKQJ FK FKR FX QKR KD\ U F 'QJ 0LQK *LDR WUQK PQ d+RD 0DXe .KRD 1QJ QJKLS i+&7 72 3+h1 /2$, .+2$, /$1* &DF FDFK SKQ ORDL 1JL WD WKQJ SKQ ORDL NKRDL ODQJ WKHR W WQK VLQK WUQJ YD FQJ GXQJ FXD QR 3KQ ORDL WKHR FQJ GXQJ 3KQJ SKDS QD\ WKQJ F DS GXQJ QKW JP FR 1KRP NKRDL WUQJ O\ EW FDF QKRP NKRDL WKXF QKRP QD\ FR FX FKD QKLX WLQK EW WKFK KS FK ELQ LQ KQK FR FDF JLQJ QK 2NLQDZD 7DLQXQJ 'QJ QJRF TXDQJ QDP 7DX QJKHQ 7UQJ JL\ &X OQ 1KRP Q WL &R SKP FKW WW KS YL NKX Y QJRQ QJRW GHR UXW PDX YDQJ FDP QKLX VLQK W $ WKFK KS Q WL KD\ QX QQJ QK FDF JLQJ iD ODW % 'QJ QJRF 1KRP WUQJ O\ WKQ OD 0XF FK FKQ QXL Y Y\ QKRP QD\ JP QKQJ JLQJ FR OD WR WKQ YD OD SKDW WULQ QKDQK QK JLQJ +VLQFKX 2NLQDZD 7UXQJ 4XF SKQ ORDL NKRDL ODQJ WKDQK KDL QKRP QK VDX iF WQK /D 7KQ 9R FX 0DX UXW FX 6DQ OQJ .KD QQJ WQ WU &QJ GXQJ .KRDL QKLX EW +QK WLP 1JQ YDQJ KD\ WP 7K GD\ 7UQJ YDQJ W QF 7KS ' /DP EW .KRDL QKLX QF ;DQK 'DL KD\ QJQ 0RQJ 7UQJ YDQJ QKLX QF &DR .KR gQ WL ODP UDX 3KQ ORDL WKHR F WQK VLQK WUQJ 7X\ WKHR FDF F WQK Y +QK GDQJ FXD OD /D QJX\Q KQK WLP KD\ OL PDF WK GX JLQJ 2NLQDZD OD FR NKD WKX\ FDQ NKD QK 7DLQXQJ 7UQJ JL\ &X OQ 7DX QJKHQ iD ODW OD FR NKD VX NKD WK GX JLQJ % 'QJ QJRF 'DQJ ER FXD WKQ 7KQ ER ODQ UQJ KL ER QJ &KX N\ VLQK WUQJ iF TXL QK OXF QQJ VXW DW JQ WL D WKL JLDQ WL WKLX &KXQJ WD FR FDF QKRP NKRDL VDX \ 6P WKX KRDFK WKDQJ 7UXQJ EQK 7KX KRDFK W WKDQJ 0XQ 7KX KRDFK W WKDQJ WU L 3KQJ SKDS SKQ ORDL P WD JLQJ NKRDL ODQJ 7KQJ GD YDR FDF F WQK WKF YW KQK GDQJ PDX VF YD NFK WKF FXD FDF F TXDQ 'QJ 0LQK *LDR WUQK PQ d+RD 0DXe .KRD 1QJ QJKLS i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iQJ NQK WKQ R FDFK QJRQ WKQ FKQK 1KR FP 7UXQJ EQK FP /Q ! FP &KLX GDL ORQJ R SKQ JLD G\ FDL 1JQ FP 7UXQJ EQK FP 'DL ! FP QKDQK WUQ WKQ FKQK qW QKDQK 7UXQJ EQK 1KLX ! &X 7KL JLDQ VLQK WUQJ ;DF QK FDF JLDL RDQ SKDW WULQ EQJ FDFK DR TXDQ VDW WKDQJOQ i [DF QK FKX N\ VLQK WUQJ QJL WD VR VDQK QQJ VXW WKDQJ FR FK V YL QQJ VXW WKDQJ +QK GDQJ FX 7X\ JLQJ YD W WUQJ 7KRL GDL &KLX GDLFKLX QJDQJ ! 7KRL QJQ 7KRL &X %X 7URQJ OQJ FX 7QK WUXQJ EQK G\ &X WKW QKR J &X QKR J WUXQJ EQK J OQ J WKW OQ ! J ;DF QK QJ X FXD FX X WUXQJ EQK NKQJ X 7\ O FX YXQ YD V FX WUQ G\ 0DX FX *P PDX YR FX WUQJ YDQJ QX YDQJ QX WP R KQJ WP PDX WKW WUQJ YDQJ R FDP P WP KQJ WP PDX FKP XF WURQJ WKW NKQJ FR WUQJ YDQJ FDP WP VP OW 'QJ 0LQK *LDR WUQK PQ d+RD 0DXe .KRD 1QJ QJKLS i+&7 74 *LD WU 3KQ WFK W\ O WLQK EW WURQJ FX UW FDR ! FDR WUXQJ EQK WKS YD UW WKS OQJ FDURWHQ WURQJ FX W\ O [W ODW NKRDL NKWL PXL Y QJRQ WUXQJ EQK G 'QJ 0LQK *LDR WUQK PQ d+RD 0DXe .KRD 1QJ QJKLS i+&7 75 . đại học cần thơ đại học cần thơ đại học cần thơ đại học cần thơ - - khoa nông nghiệp khoa nông nghiệp khoa nông nghiệp khoa nông nghiệp giáo trình giảng dạy trực. QJ7S&ĂQ7K7HO)D[ :HEVLWHKWWSZZZFWXHGXYQNQQHPDLOGPLQK#FWXHGXYQYWDQK#FWXHGXYQ Giáo trình môn học: Hoa màu (bắp - đậu xanh - khoai lang) phần: khoai lang chơng 2. đặc điểm sinh học Biên soạn bởi Dơng Minh, giảng viên