Page 12 - 《甘肃农业科技》2022年第5期
P. 12
' !"#$%& ' !" ( ' ! ) !"#$% &'() *+,) "#- ./+0#) 12) ! "#$%!&
*+ ,-./01234567 89:;<=> #.²%w,;t,Jo;-Îa
?@ABCDEFGHIJ K#$L M NO:;&PQ "*)*"$$$$|89;t÷øKL]^ §"b
RST U2VW&PX,YZ7 EF[$\:; â89;tuv.MÅÆ7 ;t÷ø]^
&P]^_` K%$&$'$L a êë|F7 ¥NKL*7 OP89;tuvw,
!"""!"#$%&'()*+,-./ QQ²a X¥â>Í2\;tuv2ÁpRS
!"bcdef:I:7 ghiWjk,l e7 í3ÙTÅÆ7 |F;t÷øUV{í7 W
mn opg3fq7 rs;tuvdew,n o 4¢¥;tuvX2q>÷øqYÈa
;&Pden x;yz>p;f{q|}7 ~2 &%( !"+#,()*
$qo;T gh89W$
:; 89o;-λcZ)[\>]^dea §
W$a cr|;$f{T "bc|FZ%I:7 Z)_]k
>$
k
>$kT FC§"7 `abAcdE7 ,éo;A7 e
b;$\ ¡T ¢89;$b f;qo;VÓo;&Pghlm7 ig2
;$sb\£a 89ex;½m¨7 j.k
>$
&%' !"#$%&'()* k\ 7 lo>gmnoWp89ex
¤¥:¦§"89;$¨©01n ;tu ; 3)!$L 7 gh§"b89;$]^6qa
vª«k¬dew,®¯T °±89;$¥² "*-*)$$$Z)rÊ_]k
>$ým¨
Wn ³´n µIB¶·¸¹x;\º»¼T » sqst}u7 vÇfwx7 j.w,by
½mbk¾¿n ²À>;$$2Á½m&P &ux¶âuz{|7 Z)rÊ_]§"8
¨7 Ã89;tuvBÄn ÅÆn ÇÈn É 9;$}¨
>$Ã89x;½m¨7
Ên ËÌ>Í2¶-Î7 ÏÐw,Ñ£o;n
Ò 2Áx;+on VWn ~Hgmn ;tuvÅn
fo;>VÓo;&PÔÕÖ×ØÙÚÛ¶d:e; _¸×«}:|}¶7 j. 7 0
tT ÜÝ¢§"b89;tuv׫ K($&$)"$L a m7 +o¸89x;7 ;$çè
"*)*)$$$$Ã89;tÞß×Øß²àáÉÊ § 7 =ºa T)Z ).$/ Ü7
"bâÅÆ;tãäX,\Qåæ !+T çè |Fl?ËÌI:7 Z7 k
;téÊ*T áâw¶ªØêëw,T ì è[Jk-Îa cÃÜAi\-Î7
íî-yáïÐï-T ðñn òóôõö;t 3OÃ;tuvÉÊ7 *+⸹
Þß÷ø*T õö\;tÞß÷øáâùa cú \·;t O½mÃ;td:>ex;+
X,²àáAÄûüÈ&PT ýþ³ÿn ! o7 VDEà m½myz7 lo¡m
"n #$²%n xt&;t7 ¥âûÍ2; ²W²%VWc¼\89e;t>ex; NO
t'(n )&n *+7 ,éâw×ض;tu |F¢£VW\x;yzf{ ¤OÃ&x
v-./7 k¬;tºc¸¹01\.2IÈk ;~~H7 àæ¥~7 ͦ89;$
¬ 3)"$&$),$L a ²%Aa
"*)*-$$$$Ã89³ÿ!"#.²%w,;tÉÊ "*-*-$$$$§VW$»¼éÊo;A ¨©ª$W
45§"b\89³"²%;tËÌf{Q6n $l\«Çû¬$\7 ®89;¯i
7ñQí37 ºc¸¹89ÉÊ}:EF7 h [°Q±²³ 7 ´&89x;EFµº¶
q;<=7 ¢>?;tyzû.@ABX,QCa ·89W$\a ظ7 lo¡m89W$6
cQÏVDE|F³ÿ!"#.²%w,;t q]^\ex; ¹Áa 3Oloºµ»
\GHÉÊËÌf{7 É+³ÿn ³In ³´n ¼½B89x; 3)#$L a BõOǾ89VWæ;-