1 Adaptation range
Anyone who can grow corn at an altitude of 600-1500 m can mix Sudan grass in the spring wheat planting area. For example, in the area of ​​the inversion zone north of the forest road in Qitai County and south of the forest road. The mountainous area has a high altitude and the climate is cool. The harvested area can be mixed in the area harvested before August 15th, but the growth is slow, the grass yield is low, and the effect is not obvious.
This regulation refers to the mixed use of spring wheat and Sudan grass, and is also suitable for the mixed oasis of barley in the plain oasis. The winter wheat is planted with Sudan grass after the next year.
2 variety selection
Wheat varieties should be low-grade, lodging-resistant, long-growing, high-yield varieties, anti-backup measures should be taken, otherwise the Sudan grass seedlings will die due to poor gas permeability in the lodging area.
3 mixed dressing and sowing
3.1 Mixing and mixing the mixed spring wheat seeds and Sudan grass seeds in a 5:1 mixture, and mixing the barley seeds and Sudan grass seeds in a ratio of 4:1, and mixing 200g of "roots" per 100kg seeds to prevent black spikes. Sick, use the raft to turn back and forth repeatedly to sown.
3.2 Sowing in Qitai County at the end of March and early April, according to the requirements of wheat, normal hoeing, spring wheat 25kg/667m2, mixed Sudan grass 5kg/667m2; barley 20kg/667m2, mixed Sudan grass 5kg/667m2. Flat sowing, sowing and ditching can be used, but the best effect is the sowing effect, and the sowing depth is 3~5cm.
4 fertilizing watering
It does not change the normal boiling water and fertilization of wheat in the growing season before the wheat harvest. Immediately after the wheat harvest, the field wheat straw was pulled and the water was poured in time. Head water is an important means to determine the benefits of mixing. It requires pouring and pouring, preventing cross-irrigation, pouring water for 7 to 10 days, and applying 81Okg/667m2 of urea. The third water is poured for 10 to 15 days to ensure a good harvest. Weather, lyrical watering.
5 Pharmacy control weeds
Mixed Sudan grassland blocks are used, and different control measures are adopted due to differences in land plots and weeds. Control broad-leaved weeds, use 2,4-D vinegar 70mg/667m2 to water 20kg, control oat-based monocotyledon weeds, use wild swallow, use 64% wettability in oat grass 2~4 leaves Powder (US) 104g / 667m2 (plus active agent), or 25% wild swallow (domestic) 230 ~ 360ng / 667m2 spray 20kg of water. When using 2,4-D butyl ester to weed, pay attention to whether there are broad-leaved crops around to avoid crop damage.
6 timely harvest
The best harvesting period of the mixed Sudanese grass is 80% of the Sudan grass flower. At this time, the grass has the highest nutritional value, timely mechanical harvesting and modulation.
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