Vol. 16â1962 - NorthEastern Weed Science Society
Vol. 16â1962 - NorthEastern Weed Science Society Vol. 16â1962 - NorthEastern Weed Science Society
.. 330 The experimental areal"8C~*ved no tiuce,thl'oughout the:~.. ing season, the weeds :I.n t~:,~epte:r:'24: inl1b 'Jltmpsbetween rows being controlled by a directed spray applioation of atrazine at 2 pounds active ingredient per •• c~ u.tlli-z.1ng',a 1a:l.apsacktype sprayer. The atrazine applioation was made as a post-emergence treatment with respeot to weed development. Weede not killed by the spray were either removed by hand or by hand hOeing. Perlo41cinspectlons ot-UlPlots we~ ii!e,tQma1l.ltaintg,e desired weed,-populationand:ctori~emove uriae~1~a~~ weeds. /~~', " .- , , '; 0" ' " ' Data w~r. COlle~ted d~1q':tlle seas6~ .t6(f~~e.t'o1l0wing:~~nt he1ght, -ear,sboOt emergenoe i I1lkemergerioe"i (,ear ),;e1Sht.. tase:e~', ~, . emerglilnoe, pollen maturity, and grain y1eld. . r, '" " ' • Cornae1ght; - < ,» ""-" , " . - ''''. ' .' ;':.: 1 ~ . r.·.) .. "'d,' Themean oom, he1ght, ,(-vC't'1oal d1stande· f'*'o m the ~Oll~~ to the t1p o.t'thehighestexteaNed lea-f) was!~ l!llgnif1cantJ;t'lnfluencedby -broadl4!l8t or grae.''W8edg dV1..!% r~season; h.owev-~... there WJoIUl:de.t'1n1te tendenofl ~or the b1'Oa~ weeds to red\l~ ,' the mean he1ght of plants more so than grass weeds.' Nitrogen '8'1gni.t'1oantly 1noreased ·the mean he1ghtof co~. .This was espec+ally apparent it1mulated tl\'i- earliness of slU. development to a s1gn1f1oan~:~.nt over t~,ro~~plots rece1y~Di: no nitrogen., ,', . !. ' ,"[ Ear Height: ~ " ': /. _ _ _. .,' ~_:. _ " . , . ~:J' L The mean e~ height (v.. Ucial height tram· s011 Surt'aQ8 to ear attaQ,hment node) of corn pl~8 was UnatteCittd 'by weedt~e o~Aena1ty, h~wev~, the1J18an ear height within n+i;rogenplots. was .~';' n1.t'1oantly greater than tho.', O'tplots reoEi1:V1r1$no nitrogen. Tassel Emergence: Braodleaf and graas wee~;tlpparEmtlyexot.d no 1n.t'luence'on theearlin, esao.t', t,assel emergence, however,; ,'~tro,,gen appli oat,.i,J.,M", S a1gni1'1cantl:V st1mulated the" re&%ll1ness 0:: ta"elemergenoe o'\!'er,:; plots l'ece1v1ng l»n1trogen" '-, " ',:"" , . . -;~~~ ;:r1"j
Pollen Maturity: ",l. ,. Broadleaf weeds tended to delay pollen'maturity (pOllen shedding) whereas grass weeds apparently had no ,effect. Nitrogen~plications significantly stlm~ated the earl~pess of pollen maturity. ".! . ,... " ~: The yield Of corn in bushels per acre at 15.5% moisture w•• significantly reduced by bros'clleafweeds atlloth levels of weed, infestations over that of weed-free or grass'lnfested plots which did not differ significantly from one anoth~:r·.· Dry matter production of weeds per acre was closely associate~ with corn yield. The dry matter pl'oduction of, ,grass weeds pe:r·acre was significantly less than the production of broad leaf weeds., yorn yield was sj,g"" n1ficantly increased byappl1dation of nitrqgen. . .331
- Page 279 and 280: 279 ·QUACKGRASSCONTROL S.M. Raleig
- Page 281 and 282: 281 table II. The control of:'4oaek
- Page 283 and 284: no cultivation during the growing s
- Page 285 and 286: SummaryandConclu.1Qp' 1. A quackgra
- Page 287 and 288: If or where farmer acceptance of a
- Page 289 and 290: ,~, ~ Tab1.e II. Chemical. Treatmen
- Page 291 and 292: so11 per plot at each sampling date
- Page 293 and 294: 418' 293 Table III Main Eff,ects of
- Page 295 and 296: Table V, }nt ...... e..• ,fa~, I;
- Page 297 and 298: plots showed smaller decreases with
- Page 299 and 300: FURTHEREVALUmONor HERBICIDESFal· W
- Page 301 and 302: 301 In the SUIIIIIlf)1' seeding, th
- Page 303 and 304: The results were similar to those o
- Page 305 and 306: In another experiment, loam soil wa
- Page 307 and 308: apparently due to severe competitio
- Page 309 and 310: ab1e 2. Average dry weight of corn
- Page 311 and 312: 311 The most strllt~Mrr~ct. ~fiIIJI
- Page 313 and 314: 313 RE9lfm'$~lfI)DI3CtlSSION '1.",
- Page 315 and 316: 315 LrrERATURECITED 1. Fertig, Stan
- Page 317 and 318: .~ pattern following applications o
- Page 319 and 320: Ratings at the time of'gJ;Vllst; al
- Page 321 and 322: THERESPONSEOF NUTGRASS TO HERBIC~I)
- Page 323 and 324: '\.......- TABLE2. Ratings of Nutgr
- Page 325 and 326: All treatments produced si~1f~c~tly
- Page 327 and 328: A 327 WEBDe
- Page 329: . Eli'FECTSali' WEEDSON YIELD AND"G
- Page 333 and 334: '--' The applicators were tested un
- Page 335 and 336: 335 Figure 1. The effeetof partic1e
- Page 337 and 338: 337 SRFeader 1 On this spreader onl
- Page 339 and 340: Table 4. The effect of speed, p~~cl
- Page 341 and 342: Table 1: Herbicidal treatments used
- Page 343 and 344: ·000 .000, I II ! WEEDCONTROLRATIN
- Page 345 and 346: 2.5000 CORNINJURY EXPRESSEDAS SQUAR
- Page 347 and 348: 347 1. 2. Danielson. l , ;4. L. Ef~
- Page 349 and 350: ',-- 34~ 3-(3 ..4-Dichlorophenyl)-1
- Page 351 and 352: weed control with adequate safety t
- Page 353 and 354: Untreated Table 2. Directed Post-E"
- Page 355 and 356: .s .... __ Table 7. Pre-Emel'ae~eWe
- Page 357 and 358: experiment is reported herE!. Trifl
- Page 359 and 360: Results are given. in Table 4~J'Rot
- Page 361 and 362: In Princeton fine sand, tritlupalin
- Page 363 and 364: Included in the lima. bean test wer
- Page 365 and 366: Table 1. The Effects ofS8veral form
- Page 367 and 368: Table 3. The effects of several for
- Page 369 and 370: 369 Table 5. The effects of sev~ral
- Page 371 and 372: • ~ : .• \ • ' -' ..,,:- ',-"
- Page 373 and 374: Heights of barley were significantl
- Page 375 and 376: Table 2. The effe,cts of s~\I'~ral
- Page 377 and 378: Table 4. 377 The effects of aevel8.
- Page 379 and 380: ,:' A PROGRESSREPORTONCOMIo!ERCIAL
..<br />
330<br />
The experimental areal"8C~*ved no tiuce,thl'oughout the:~..<br />
ing season, the weeds :I.n t~:,~epte:r:'24: inl1b 'Jltmpsbetween rows being<br />
controlled by a directed spray applioation of atrazine at 2<br />
pounds active ingredient per •• c~ u.tlli-z.1ng',a 1a:l.apsacktype sprayer.<br />
The atrazine applioation was made as a post-emergence treatment with<br />
respeot to weed development. <strong>Weed</strong>e not killed by the spray were<br />
either removed by hand or by hand hOeing.<br />
Perlo41cinspectlons ot-UlPlots we~ ii!e,tQma1l.ltaintg,e<br />
desired weed,-populationand:ctori~emove uriae~1~a~~ weeds. /~~',<br />
" .- , , '; 0" ' " '<br />
Data w~r. COlle~ted d~1q':tlle seas6~ .t6(f~~e.t'o1l0wing:~~nt<br />
he1ght, -ear,sboOt emergenoe i I1lkemergerioe"i (,ear ),;e1Sht.. tase:e~', ~, .<br />
emerglilnoe, pollen maturity, and grain y1eld. . r, '" " ' •<br />
Cornae1ght; - < ,» ""-" , "<br />
. - ''''. ' .' ;':.: 1 ~ . r.·.) .. "'d,'<br />
Themean oom, he1ght, ,(-vC't'1oal d1stande· f'*'o m the ~Oll~~<br />
to the t1p o.t'thehighestexteaNed lea-f) was!~ l!llgnif1cantJ;t'lnfluencedby<br />
-broadl4!l8t or grae.''W8edg dV1..!% r~season; h.owev-~...<br />
there WJoIUl:de.t'1n1te tendenofl ~or the b1'Oa~ weeds to red\l~ ,'<br />
the mean he1ght of plants more so than grass weeds.' Nitrogen '8'1gni.t'1oantly<br />
1noreased ·the mean he1ghtof co~. .This was espec+ally<br />
apparent it1mulated tl\'i- earliness of slU.<br />
development to a s1gn1f1oan~:~.nt over t~,ro~~plots rece1y~Di:<br />
no nitrogen., ,', . !. ' ,"[<br />
Ear Height:<br />
~ " ': /. _ _ _. .,' ~_:. _ " . , . ~:J' L<br />
The mean e~ height (v.. Ucial height tram· s011 Surt'aQ8 to ear<br />
attaQ,hment node) of corn pl~8 was UnatteCittd 'by weedt~e o~Aena1ty,<br />
h~wev~, the1J18an ear height within n+i;rogenplots. was .~';'<br />
n1.t'1oantly greater than tho.', O'tplots reoEi1:V1r1$no nitrogen.<br />
Tassel<br />
Emergence:<br />
Braodleaf and graas wee~;tlpparEmtlyexot.d no 1n.t'luence'on<br />
theearlin, esao.t', t,assel emergence, however,; ,'~tro,,gen appli oat,.i,J.,M", S<br />
a1gni1'1cantl:V st1mulated the" re&%ll1ness 0:: ta"elemergenoe o'\!'er,:;<br />
plots l'ece1v1ng l»n1trogen" '-, " ',:"" , . . -;~~~<br />
;:r1"j
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