What varieties of oil sunflower seeds to plant
Huatai short head oil sunflower varieties, features include:1, short, large disk, high yield2, leaf fat, short petiole, thick stalks, short internodes, strong wind resistance, strong resistance to collapse.3, disease resistance, drought, barrenness, salinity, utility, resistance to botrytis, high resistance rust. It can be widely planted in drought, barren, saline and alkaline areas.4. It can be sown both in spring and summer, with a fertility period of 100 days for spring sowing and 90 days for summer sowing. Huatai Dwarf Big Head is short and has significant advantages in side rows, which can be planted purely and is very suitable for planting with watermelon, melon and other short crops. 5, large pollen quantity, high fruiting rate, compact disk. High oil yield, good oil quality, seed oil content rate of 45-50% Shandong sunflower planting preparation 1, pre-sowing land preparation sunflower before sowing deep plowing 20-25 cm. In order to facilitate drainage and irrigation, it is appropriate to cultivate ridges with a height of 10 centimeters. Every 1/15 hectares of soil fertilizer 3000-5000 kg, 50-80 kg of compound fertilizer, potassium sulfate 20-30 kg, combined with ground preparation, turning as a base fertilizer. 2, sowing at the right time, reasonably dense planting in the spirit of "spring sowing is appropriate for early, summer sowing is appropriate for late," the principle of spring sowing ground cover, can be sown in March 10-20 days. Summer sowing at the end of June, early July. Sunflower 1-2 days before sowing, soak the seeds for 6-10 hours, with fumex or carbendazim and other endosorbent fungicide seed mixing. The seeds treated by coating can make moisture to rise up and direct seeding, hole sowing or strip sowing, a hole of one grain or two grains in every other hole, mulching 3 cm thick, using 0.35-0.5 kg of seed per 1/15 hectares. Before sowing, use 48% fluroxypyr emulsifiable concentrate 75-125 ml, 40-50 kg of water to the soil spray, followed by harrowing, so that the agent is mixed into 5 cm of soil to inhibit weeds at the seedling stage.