Maize, Linseed & SOSR
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Maize, Linseed & SOSR - Leaderboard
Maize, Linseed & SOSR - Details
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51 questions
🇬🇧 | 🇬🇧 |
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 |