1 Scope of adaptation
Where it is possible to grow corn, altitudes in the range of 600 to 1500m, the spring wheat planting areas can be mixed with Sudangrass. For example, it is in the inversion zone in the north of the forest area of ​​Qitai County and in the south of the forest area road. In the mountainous areas where the climate is cool at an elevated altitude, the wheat harvest season may be mixed in the areas harvested before August 15th, but the growth is slow and the grass production is low. The effect is not obvious.
This procedure refers to the spring wheat mixed sowing Sudan grass, also adapted to the plain oasis barley mixed Sudangrass, the winter wheat the following year after interplanting Sudan grass.
2 species selection
Wheat varieties should be selected low, resistant to lodging, long growth period, high yield varieties, to take measures to prevent lodging, otherwise the fall of the ground because of poor permeability caused the death of Sudan grass seedlings.
3 Mixed sowing and sowing
3.1 Mixing and mixing medicine: mix the selected spring wheat seeds with Sudan grass seeds by 5:1, and mix barley seeds and Sudan grass seeds by 4:1 ratio, and mix 200g “kind roots†per 100kg seeds to prevent black ear Ill, sow the back and forth with the mallet several times and turn it evenly.
3.2 Sowing in Qitai County At the end of March and early April, according to the requirements of wheat species, the robbers were normally sown. Spring wheat was 25kg/667m2, mixed Sudan grass was 5kg/667m2, barley was 20kg/667m2, and Sudan grass was 5kg/667m2. Broadcasting, seeding and furrowing are all available, but the best sowing effect is achieved. The depth of sowing is 3 to 5cm.
4 Fertilize and water
Do not change the normal boiled water and fertilization of the wheat before the wheat harvest. Immediately after the wheat is harvested, the wheat field grass is pulled and the head water is poured. The headwaters are an important means to determine the benefits of mixing and sowing. They require pouring, drenching, preventing string irrigation, pouring two waters for 7 to 10 days, topdressing urea 81Okg/667m2, and pouring water for 10 to 15 days to guarantee a good harvest. Weather, sensational pouring water.
5 Chemicals to control weeds
Mixed grassland in Sudan, due to differences in plots and weeds, adopted different prevention and control measures. To control broad-leaved weeds, use 2,4-D vinegar 70mg/667m2 water to 20kg, control monocotyledonous weeds dominated by oats, use wild bark, and use 64% wettability during the 2 to 4 leaf stage of oatgrass Dust (U.S.) 104g/667m2 (plus active agent), or 25% of wild bark (domestic) 230 to 360ng/667m2 of 20kg water. When weeding with 2,4-D butyl ester, pay attention to whether there are broad-leaved crops around, so as to avoid crop damage.
6 timely harvest
The best harvest time of Sudan grass after mixed sowing is 80% of Sudangrass flowers. At this time, the nutritional value of grass is the highest, and it is timely harvested and modulated by machinery.
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