Maize, Linseed & SOSR
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Maize, Linseed & SOSR - Marcador
Maize, Linseed & SOSR - Detalles
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Preguntas:
51 preguntas
| 🇬🇧 | 🇬🇧 |
| Describe a general product based herbicide programme for maize | Pre-em: Pendimethalin + dimethanamid P Post-em: mesotrione + nicosulfuron |
| What are the symptoms of wireworm damage in maize and when can it be seen? | Young leaves turning brown at 5-6 leaf stage |
| List the diseases of linseed in the UK | Pasmo, grey mould, alternaria, sclerotinia |
| What fungicide can be applied to linseed and when? | Tebuconazole at first sign |
| What seed rate should be used for SOSR and for what target plant population? | 80-90 seeds/m2 to achieve 70 plants/m2 |
| What does the BSPB forage maize descriptive list categorize its varieties under? | Favorable and less favorable sites |
| Why would you plant early varieties of maize? | Insurance against a late harvest |
| Why would you plant late maize varieties? | Increased yield |
| What seed treatment is available for maize and what will it prevent? | Maxim XL, damping off |
| What is the seed rate for maize? | 110,000 seeds/ha |
| What will 5% reduction of seed rate increase in maize? | Cob size and starch levels |
| When should maize be drilled? | Late March - early april where soil temperatures are 8 degrees and above |
| Describe a traditional maize nutrition plan | 125kg/ha of DAP, followed by remaining N at leaf 4 to prevent prills scorching the leaf axils |
| List the available maize pre-em herbicides | Pendimethalin, dimethanamid and metalochlor |
| List the available maize post-em herbicides | Mesotrione, bromoxynil, fluroxypyr, flurasulam, clopyralid, foramsulfuron and iodosulfuron |
| What are optimal conditions for northern corn leaf blight? | 18-27 degrees and 95% humidity |
| What causes seedling blight in maize and what is an additional risk? | Fusarium and a following wheat crop |
| What are the two most prolific pests of maize? When are they most an issue? | Wireworm and frit fly after grass |
| What are the symptoms of frit fly damage and when can it be seen? | Yellow, twisted leaves at 1-4 leaf stage |
| What are the two linseed market varieties? | Edible and industrial |
| What are the ratings on the linseed descriptive list? | Earliness to harvest, standing ability, yield |
| When is the optimum sowing date for winter linseed? What plant establishment is optimum? | September, 400 plants/m2 |
| When is the optimum sowing date for spring linseed? What plant establishment is optimum? | Mid March - mid April, 600 plants/m2 |
| How much N does linseed require? | 120kg/ha |
| When should weeds be controlled in linseed? | When the crop is between 5-20cm high |
| What are the options for linseed pre-em herbicides? | Avadex, Mesotrione, Metazachlor |
| What post-em grassweed herbicides are available for linseed? | Cycloxydim, propaquizafop, fluazifop |
| What post-em BLW herbicides are available for linseed? | Amidosufuron, bromoxynil, clopyralid, carbetamide (EAMU), bentazone |
| When applying both BLW and grassweed herbicides to linseed, what should be done? | Leave 14 days between BLW and grassweed herbicide applications |
| What is the main pest of linseed, effecting only spring drilled crops, and how can it be controlled chemically? | Flax flea beetle, cypermethrin or lambdacyhalothrin |
| What is the drilling window for SOSR? | Early March-Late April |
| What is a suitable pre-em herbicide programme for SOSR? | Metazachlor + Quinmerac |
| What grassweed post-em herbicide options exist for SOSR? | Fluazifop, Propaquizafop |