Page 44 - 《寒旱农业科学》2025年第4期

ž ##. ž ! !

"#$%&'()*+ ,#-./012345 !-) !"*)
67#-89:;+ <=>?@ABCDEFG ±²nH ( IJ³H ( JKJLM .*5N
HI JKLMNOFPQRST U"#V W XY+ NO OPJõ#$./Q¿W RASTðUVWI :
Z[\]^_T`[+ ab`cdFefghij Ç ! XQ¿I ºYã67ä|#˜<( /*5@°ë?
k+ Z[Xlmnopqrst[QuvwxS ©#QI 2<( )&5@°ë?©#QI Z[Q¿
TR[QytW z{:Q|}~€‚ƒ#I |#Q$\(ºYF .*5ã8(ä£ '*5ã8"ä£ !*5
„- †‡ˆ`c‰A#-FŠ‹I Œ`#-‰ ã8$äã] (äI ;Q¿ ! ^t_W `A 89:;<=>:6?=
AI Ž€‡ˆ‘’Z“I ,”•–—˜Œ $" #$abcãd· :;7? 4-䨩šTe#QI
`NOFST U$#™ W fe#QM2<N|#g˜<I |#Qhi4k
šThi€›x‡œ2žŒŸ •K¡¢ j2k
F#-£ ¤T¥¦§I ¨©‡œª«I Œ`@ˆ !@"A#B$C%Dã&(%&"ä
$
F[QRSTW ¬šThi#-­®Q¯°I , k³I ! (;l|}Qã+äI " (±²;lhi¢
"
$
hi±²RZ[³´µ[Z#-%&I nKLM mã$,'=+äI # (šT´tã&.$,/(=234+äI $ (hn
_T¶[SFZ[W XYI ·6¸¹]#-./ o p q 9 — ã*,$= +äI % ( @ ° ë ? © # Q
ºNO»‡FLM¼½¾e³,PQ£ ST£ Z ã)',&&5äI &(£ &" $\r]|#˜£ 2<ãë?©
¿ÀÁ§Â¢ U!#%#&#™ I ¹]#$./ºšThiÃO #Qs$täW

LMF¡¢¼½Ä; U'#™ W (J”ÅƽÇÈhi
& ! '()*+,-
ÃOºÉʖ—#-./FMËI ÌÍÆΚT
;^|#Q |#Q
Q¿
hi2#$./ºÃO‡œZ“£ >?@A£ [ / ã0 16ä 1 ã0 120ä
#
#
.
QÏ#$‰AcFLMI ÐÑÒÓÔzÕ,# 34ãºYä &.-)! # 5.$-$
$./012Z“FÃOS»I (ÃOF_T` 6! ㆗.#ä $&7+# . +%.-+
[hiŒŸ¿Ö×ØW 6. 㳗.#ä )#-)$ . #)*-#
!"""!"#$%
6#ãt—.#ä .%-+5 ! 5+&-%
!"! !"#$%
±²,ÙÚÛÜÝÞß³àá¹â ã#$! %&" RA 89:;<=>:6?=$" uv#ówx*yz
'I !()! *+" ,äåæçèéê·æëìí?îïð {b 67FšTe#QI fZ2|g )&5F|#2
$ ñò>óôJõW {ö÷øù (#)**#+I úö <zJõ|}I }g /*5F|#˜<I ~|#
÷ûó ','#-W QI €‚|#QF .*5£ '*5£ !*5ºZƒ„.
!-. !"&' #Q¿Jõ|}W 5A 89:;<=>:6?=$" uv#ó
Ÿ±ÃOS»(üý .*"ãþÿÙÚÛ¶!" wx*yº„.#Q¿F|#˜2<mJõ {

#$ä R (.(ãþÿ%&'Rì()*+<,-äW bI ®‚†—£ ³—£ t—.#Q¿Fe#Qu
hišTþÿÙÚÛ.€/0¶!1*23+< ‡2|I YÑ2|a—¯ˆI ‰Ñ2|¯(Š‹W
4-W ,#$Q¿‰ÑI 8( Q¿F|#˜2<(ë?@
!-# !"() °©#QF ''5R &.5ŒŽ 8" Q¿F|#˜2
±²5Aò>óô6khiI óô“ '*#+I <(ë?@°©#QF &/5R &!5Œ 8$ Q¿
7 — (*# +I h i 6 “ /,**# +£ 8 *,!*# +£ 9 F|#˜2<(ë?@°©#QFf &!5R !/5W
$
*,"&#+I : $' 6I ;6<„šT (#+ I •‡ $! !-$ +,-./*0
œã()œ0" õäI õ=( *,"*#+I œ>( *,!&+W ‡‰gKJIKJ .*5Ñ?I ;‘ (!=E b
šTë?@°©#Q( )',&&1I ´t( &.$,/(# Qœ`£ ’“£ ”•–£ ”¢m§Z“—˜ ( ^I
$
234+ W |}Ak(B2C|I ËADE|}ÈF ;õ˜~ (" œW A}™bQœ`k n‘š7M‡
’GW œZ“šF`— A›˜œ™bQ’“k КT˜