First, crop rotation. Flax is a direct seeding and close planting crop, which should be planted in flat and fertile soil. In front of our county, wheat and rape stubble are ideal, followed by oil sunflower. When planting flax, it is not allowed to repeat and meet stubble (the interval is more than 3 years). On the one hand, continuous cropping consumes too much soil fertility, on the other hand, it will aggravate the occurrence of flax diseases and cause flax yield reduction.
Second, fine soil preparation. Plots planted with flax should be deeply ploughed in autumn, raked, ploughed and suppressed in time after spring, so that the land is level and the soil is fine, and the soil is loose and the water content is appropriate.
Third, sow in time. The suitable sowing date in our county is mid-April, the sowing amount is 8-9 kg/mu, and the seed is dressed with 50% carbendazim wettable powder, which is 1% of the seed weight. Sowing depth is 3-4 cm, and 24 rows of seeders are used for hybridization or repeated sowing twice.
Fourth, rational fertilization. According to the characteristics of soil fertility and flax growth and development in our county, phosphate fertilizer should be given priority to, supplemented by nitrogen fertilizer. Apply 5-6 kg of diammonium phosphate (or ammonium phosphate or calcium superphosphate) per mu, and urea 1- 1.5 kg per mu. All chemical fertilizers are used as seed fertilizers.
5. Chemical weeding. When the seedling height of flax is 10- 12 cm, dicotyledonous weeds and wild oats can be controlled, and 60-70 ml of emulsifiable concentrate or 80 ml or 60ml of 20% najiaojing emulsifiable concentrate can be obtained by using 60-80 ml of 20% dimethyltetrachloro and 15% per mu.
Sixth, rational irrigation. When planting flax in irrigated land, water should be poured once before flax sprouts and blooms. When watering, stop watering in case of strong wind to avoid lodging.
Seven, timely harvest. Timely harvest of flax is the key to ensure high yield and fiber quality of flax. Early harvest, insufficient fiber maturity, low hemp yield and poor fiber strength. On the other hand, if the harvest is too late, the hemp stalk will dry up easily and the fiber will be hard and fragile. When it is soaked in water in precipitation, it will turn green, and the output and quality of fiber will decrease. Therefore, flax is required to be harvested at yellow maturity. The main characteristics of early yellow ripening are that the capsule of Matian 1/3 turns brown, the lower leaves of hemp stalk 1/3 fall off, and the lower part of hemp stalk 1/3 turns apricot yellow. During this period, we can organize manpower to pull hemp as soon as possible. For plots with different maturity, one piece is pulled out after exposure. When pulling hemp, it is necessary to pull hemp, pick grass, throw pure land, neat roots, and wrap it with hemp to form a small handle with a diameter of 10 cm. Hemp winding distance is 7- 10 cm (same plot, uneven)
Eight, it is necessary to plant seeds in time and bundle them as required. Drop seeds in time when picking dry, and drop seeds in hot weather. Hemp should fall on boards and squares, not on stones, and cannot be pressed by small four-wheel motor. Hold the hemp handle tightly when throwing hemp to prevent drawing lots. According to the color and length, the crushed hemp handles are bundled into large bundles. The big bundle is about 10- 15 kg, and it is wound twice without loosening the bundle. Roots shall be piled up, and the dislocation of roots shall not exceed 10 cm. Those that do not meet the packaging requirements will be downgraded.
Nine, when delivery, hemp should be completely dry, wet hemp is not purchased. In order to prevent it from raining halfway, the hemp delivery car should bring its own rain-proof tarpaulin. Party A shall not be responsible for the loss of wet hemp caused by not bringing rain-proof tarpaulin, and Party B shall bear it.
10. Cannabis, stones and clods are not allowed in the hemp bag. Once found, Party A will refuse to buy.