Tadeusz_Praczyk_Prague_June11
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Tadeusz_Praczyk_Prague_June11 Tadeusz_Praczyk_Prague_June11 Presentation Transcript

  • Tadeusz PraczykInstitute of Plant Protection – National Research Institute Poznań, Poland Praha, 15.06.2011
  • The focus of the studies Efficacy of weed control in glyphosate‐resistant maize  (NK603) under Polish conditions.  The influence of glyphosate on biodiversity in  comparison to standard weed control systems.
  • TREATMENTS Herbicides Doses Time of application [L/ha] [BBCH]1. Guardian Max 840 EC + Roundup Ready 1.5 + 3.0 12‐13 Roundup Ready 3.0 16‐172. Roundup Ready 3.0 12‐13 Roundup Ready 3.0 16‐173. Lumax 537,5 SC   4.0 12‐134. Mocarz 75 WG  0.2 kg 12‐13 Milagro 040 SC 1.5 16‐17Roundup Ready (glyphasate)Guardian Max 840 EC (acetochlor )Lumax 437,5 SC (mezotrione + S-metolachlor + terbuthyloazine)Mocarz 75 WG (tritosulfuron + dicamba)Milagro 040 SC (nicosulfuron)
  • Trial layout Field with crop rotation Field with monoculture of NK603 (NK603 - oats - NK603) (3 yers) 4 3 2 1 4 3 2 1 401 402 403 404 405 406 407 408 2 1 4 3 2 1 4 3 301 302 303 304 305 306 307 308 3 4 1 2 3 4 1 2 201 202 203 204 205 206 207 208 1 2 3 4 1 2 3 4 8m 101 102 103 104 105 106 107 108 9m4 treatments4 replications
  • Planting of corn NK603 
  • Corn NK 603 at early growth stage
  • Number of weeds per 1 m2 (field 1, 9 June, 2009) Traetments Chenopodium Viola Polygonum Echinochloa Elymus album arvensis persicaria crus galli repens 1 16,9 17,7 2,3 9,9 0,3 2 46,9 68,1 29,5 275,1 0 3 1,2 2,4 0 0,2 0 4 40,6 43,4 0,3 310,3 0
  • Number of weeds per 1 m2 (field 2, 9 June, 2009) Traetments Chenopodium Viola Polygonum Echinochloa Elymus album arvensis persicaria crus galli repens 1 5,1 64,1 0,5 0,1 29,8 2 22,6 106,3 22,1 9,7 23,3 3 0,2 1,5 0,1 0,3 40,9 4 11,4 53,1 0,3 55,1 69,7
  • Number of weeds per 1 m2 (8 June, 2010)Traetments Chenopodium Viola Polygonum Echinochloa Elymus album arvensis convolvulus crus galli repens 1 2.2 13.4 2.3 2.4 0.7 2 1.9 7.6 1.1 10.7 0.8 3 0 0 0 3.9 5.4 4 0.8 15.3 0.7 43.8 4.1
  • Guardian Max 840 EC + Roundup Ready   1.5 + 3.0 l/ha(BBCH 12‐13)Roundup Ready  ‐ 3.0 l/ha (BBCH 16‐17) 19th June, 2010
  • Guardian Max 840 EC + Roundup Ready 1.5 + 3.0 l/ha(BBCH 12‐13)Roundup Ready ‐ 3.0 l/ha (BBCH 16‐17) 12th August, 2010
  • Guardian Max 840 EC + Roundup Ready   1.5 + 3.0 l/ha(BBCH 12‐13)Roundup Ready  ‐ 3.0 l/ha (BBCH 16‐17) 20th October, 2010
  • Roundup Ready ‐ 3.0 l/ha (BBCH 12‐13)Roundup Ready ‐ 3.0 l/ha (BBCH 16‐17) 19th June, 2010
  • Roundup Ready ‐ 3.0 l/ha (BBCH 12‐13)Roundup Ready ‐ 3.0 l/ha (BBCH 16‐17) 12th August, 2010
  • Lumax 537,5 SC – 4.0 l/ha (BBCH 12‐13) 19th June, 2010
  • Lumax 537,5 SC – 4,0 l/ha (BBCH 12‐13) 12th August, 2010
  • Mocarz 75 WG – 0.2 kg/ha (BBCH 12‐13) Milagro 049 SC – 1.5 l/ha(BBCH 16‐17) 19th June, 2010
  • Mocarz 75 WG – 0.2 kg/ha (BBCH 12‐13) Milagro 049 SC – 1.5 l/ha(BBCH 16‐17) 12th August, 2010
  • Yield of corn NK603 in 2009 Treatments Dose Field 1 Field 2 [L/ha] [t/ha] [t/ha] Guardian Max 840 EC + Roundup Ready 1.5 + 3.0 6,58 7,90 Roundup Ready 3.0 Roundup Ready 3.0 7,92 7,77 Roundup Ready 3.0 Lumax 537,5 SC   4.0 7,07 7,26 Mocarz 75 WG  0.2 kg 6,67 7,04 Milagro 040 SC 1.5 LSD(0,05) 2,140 2,116
  • Yield of corn NK603 in 2010  Treatments Dose Yield [L/ha] t/ha Guardian Max 840 EC + Roundup Ready 1.5 + 3.0 10.03 Roundup Ready 3.0 Roundup Ready 3.0 10.74 Roundup Ready 3.0 Lumax 537,5 SC   4.0 9.94 Mocarz 75 WG  0.2 kg 8.71 Milagro 040 SC 1.5 LSD(0,05) 2.125
  • Studies on seed bank in soil
  • Methodology Taking of soil samples: before corn emergence (May) Number of samples: 4 from each plot Depth of soil sampling: 0-30 cm Diameter of drill: 5 cm Volume of sample: 588.75 cm3
  • Taking of soil samples
  • Soil samples in flat pans in glasshouse
  • Weed species in soil seed bank Chenopodium album Matricaria inodora Viola arvensis Echinochloa crus galli Thlaspi arvense Papaver rhoeas
  • Number of living seeds per 1000 cm3 of soil in 2009 (field 1) Treatm. CHEAL VIOAR PAPRH MATIN THLAR CAPBP ECHCG APESV 1 53.3 1.8 0.3 0.3 0 0 98.8 0.3 2 29.5 1.9 0 0 1.8 0.7 30.0 0.3 3 35.6 3.7 1.2 0.8 0 0 29.6 0.1 4 38.9 1.5 0.6 0 6.1 0 76.4 0.3
  • Number of living seeds per 1000 cm3 of soil in 2009 (field 2) Treatm. CHEAL VIOAR PAPRH MATIN THLAR CAPBP ECHCG APESV 1 189.9 4.3 2.2 1.4 1.0 0.4 2.2 7.8 2 135.3 9.5 0.9 1.0 5.1 0.9 9.5 6.9 3 131.0 7.4 0.7 0.6 0.9 0.4 4.5 6.1 4 122.4 6.4 0.8 1.4 2.6 1.4 35.3 4.6
  • Number of living seeds per 1000 cm3 of soil  (field without NK603 in 2010) Treatm. CHEAL VIOAR PAPRH MATIN THLAR VERPE ECHCG APESV 1 11.4 0.5 13.4 0 0 2.1 29.1 0.3 2 13.5 1.1 10.0 0 0 0 19.0 0 3 11.3 0.8 11.8 1.9 0 0.1 34.5 0 4 13.5 2.0 10.9 0 0.3 0.1 18.6 0.1
  • Number of living seeds per 1000 cm3 of soil  (field withNK603 in 2010) Treatm. CHEAL VIOAR PAPRH MATIN THLAR ECHCG APESV 1 23.0 1,0 79.8 0.4 0 7.9 2.8 2 23.8 1.5 63.6 0 0 9.8 2.3 3 13.8 2.1 75.4 0 0.1 6.0 2.0 4 18.4 2.1 64.9 0.4 0.3 8.9 4.4
  • Conclusions Experimental field was infested mainly by following weed species: Chenopodium album, Viola arvensis, Papaver rhoeas,  Echinochloa crus galli, Elymus repens. Treatments with Roundup Ready and Guardian Max 840 EC +  Roundup Ready were very effective against all weed species. Standard herbicide Lumax 537,5 SC applied at BBCH 12‐13  gave similar effect compared to treatments with glyphosate. The system of weed control did not influence  yield of maize. In soil samples 8 weed species were found (Papaver rhoeas,  Chenopodium album and Echinochloa crus galli were most  abundant).