Autumn, as a nutritious health-care vegetable, has been favoured in the market in recent years. As representatives of hot crops, mastery of the right methods of cultivation is directly related to yields and quality. The author has visited a number of growers and, in the light of practical experience, has prepared a technical guide for you to grow a full of dried sunflower。
I. Precision in the timing of seeding
1. Spring-run gold season
Southern region: late march to mid-april (average temperature above 15°c per day)
Northern region: early may to early june (after late frost)
Blank cultivation: ready for membrane coverage until late february
2. Summer coverage
Yangtze basin: replanted by early july
South china: extended until early august
Key tip: make sure the pick-up period avoids early frost
Ii. The whole process of high-yield cultivation
1. Pre-treatment of seeds
Best selected species: high-prevalence products, such as taiwan 1 and 5
Drumb technique: 55°c warm water immersion of 15 minutes ~ 12 hours ~ 25°c ~ 36 hours
2. Fineness
Soil requirements: ph6. 5-7. 5 sandy soil with 30 cm deep cultivation
Bottom manure programme: acre application of decomposed manure 2000kg + $3 000 compound fertilizer 30kg
Speculation: 80cm wide, 20cm deep
Scientific seeding
Live: 40 cm range, 2-3 grains per cave, 2 cm cover soil
Cultivation: 32-hole seedlings, 25-30 days
Key data: 600-800 g acreage, 2,500 per acre
4. Field management points
Shizuku plant: 3-leaf to weak
Fertilizer management: follow-up of high potassium fertilizers during the current period and soil moist
Plantation adjustment: 40 cm high to stimulate branching
Farming technique: 5 cm prior and 3 cm later
Iii. Migration of key points
1. Optimal timing
Premium standard: 4-5 saps, plume 0. 5 cm
Environmental requirements: 3 consecutive days of night temperature > 12°c
Recommended operation: select the sun or sunday evening to move the plant
2. Plantation technology requirements
Land migration: preservation of full root land
Depth of planting: in line with the depth of seedbed cultivation
Plant configuration: narrow and wide (80 cm wide and 50 cm narrow)
Four, five big slow seedlings
Pre-plant seedlings
Refining process: gradual reduction of sun shades 7 days before planting
Water control standard: water content of matrix reduced to 60%
2. Root systems approach
Root formulation: root powder (1,000 times liquid) + violin (3,000 times liquid)
Operational elements: 30 seconds to plant
3. Environmental regulation
Sunshield management: 70% after 3 days of planting
Temperature control: 25-28°c during the day, 18-20°c at night
4. Water management
Root water: watered immediately after planting
Rewater time: water twice when the surface is white
5. Emergency response
Atrophy treatment: 0. 2% potassium phosphate + zirconium sprayed on the leaves moss
Disease prevention: 800 times dyson manganese zinc after 3 days of planting liquid
V. Relevant issues response
1. Poor seedlings
Solution: 0. 1% small soda solution when impregnated
2. Saplings long
Control measure: spray 100 ppm polyazine
3. Fragments
Method of prevention and treatment: 0. 01 per cent salvo application during flower season liquid
4. Collection criteria
Best time: 5-7 days after flowers, 8-12 cm long
Harvest techniques: using gloves to collect with scissors to avoid fuzzy irritation
These core technologies, together with precision management, can produce 3,000-4,000 pounds of acre. In particular, growers are reminded of the fallout of rotation, and it is recommended that more than three years of rotation with grasshopper crops be introduced to effectively prevent dysentery. I expect every grower to reap the crumbs. Autumn # sannon #
