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It is widely adaptable and can grow on various terrains and soils. However, the most suitable condition is soil soft sandy loam, PH value of 6.5? 7.5, winter temperature ? 20 °C, the annual rainfall of 300mm? 800mm, not suitable for planting in the low-lying and easy water plots. Mild saline land can be planted, but salt pressure should be taken when soil salinity exceeds 0.3%.
Before sowing the seedlings, it is necessary to finely prepare the soil. The best preparation time in the summer is to deep-flip and deep-pitch once and turn the weeds into deep layers. Before the autumn sowing, if there are many weeds, we need to deep-dip once or spin one time, and then we must flatten.
Cockroaches generally do not apply nitrogen fertilizer, but the effect of increasing production after applying phosphate fertilizer is obvious. Before planting, organic fertilizer was applied in combination with soil preparation, 2m2?3m2/mu, pure phosphorus 8kg?16kg/mu, and applied once. Potash can also be given properly. In order to prevent the occurrence of weeds at the seedling stage, 48% trifluralin (1O0 ml/mu) was sprayed into the soil before sowing, and the soil was applied to the soil in a depth of 5 cm. The effective period was 3 months to 5 months.
Cockroaches are perennials, and can be used for 2 years to 5 years after a sowing. At present, the best domestic varieties are Baoding wolfberry, Gannong No. 1 hybrid flower worm, and Xinjiang big leaf locust. There are relatively good foreign countries such as the Queen of the United States and Ansta. The introduction of foreign varieties has good uprightness and facilitates mechanized harvesting. The purity of seeds should be above 90%, the germination rate should be above 85%, and the purity should be above 98%. It is best to treat the seeds before sowing. According to the seed 500kg + coating material 15Okg + adhesive 1.5kg + water 75kg + ammonium molybdate 1.5kg formula, so that the seeds in the seedling stage from pests, weeds and other hazards.
In the northern part of the country, the sowing date is August 10 to September 10. Too late to affect normal wintering. The majority of the area is drilled with a 30cm spacing. The sowing rate is generally about 1kg/mu, and the amount of farmland is less, the saline-alkali land can be more appropriate, and the optimum seeding depth is 0.5cm to 1cm.
Weeding should be done promptly after the seedling stage and during summer harvest. Choose herbicides carefully so as not to poison livestock. Watering before winter, after returning green, and during drought. Low-lying areas should pay attention to the rainy season drainage, flooding 24 hours will die. When pests and diseases are encountered, they should be controlled in time. Generally, they are sprayed with schizophyllin, dimethoate, and fenvalerate. Diseases occur, such as rust, brown spot, downy mildew, etc., and are treated with doxanthin, thiophanate and other agents.
Harvesting usually begins at the beginning of flowering, that is, when the flowering reaches 1/l0, and the flowering period cannot be exceeded at the latest. It can be harvested 3 times a year, 4 times, and the last harvest should not be too late. Generally, a 50-day growth period should be set aside after harvest. The height of stay is 5cm.
è¦ç‚¹ Cultivation points
It is known as the "king of pastures" and has high yield and excellent quality of grass. The following is a brief description of the technical aspects of the tillage and cultivation management: