I. Planting season:
Ryegrass has a long sowing period and can be sown in autumn and spring, mainly in autumn.
The sowing date of autumn sowing is generally from early August to 1 1, and the most suitable sowing date is from September to 1.
If ryegrass grows tall, it likes warm and humid climate. The suitable germination temperature of seeds is 13℃-20℃, and it is difficult to germinate below 5℃ or above 35℃. Generally, it can be planted in February-165438+1October, and the best planting time is from early April to mid-May, and from mid-June to the end of July.
Second, the planting method:
1, soil preparation and fertilization:
Ryegrass planting areas should be deeply ploughed and leveled to create a good planting environment for ryegrass seeds. Combined with soil preparation, organic fertilizer 1000- 1500 kg or compound fertilizer is generally applied per mu.
2. Sowing method:
The general sowing amount is per mu 1.5-2 kg. Seeds can be directly mixed with calcium magnesium phosphate fertilizer and then sown. However, if the weather is dry or the soil is dry, it must be watered in time, otherwise it will affect the emergence of seedlings.
It is best to soak the seeds in warm water for 65,438+0 hours before sowing, or soak them in 65,438+0% lime water for 65,438+0-2 hours before seed dressing, so as to improve the emergence rate.
3, intertillage weeding:
Weeds mainly occur at the seedling stage. The earlier the sowing date, the more vigorous the weeds grow. Weeding should be done well.
Spraying glyphosate on the day before sowing can eliminate weeds in the field, but there is no effective weeding method for a small number of monocotyledonous weeds at present, and only manual weeding can be used.
4. Reasonable irrigation:
Topdressing once before winter and when returning to green in spring, so that the fertilizer can be dissolved in time and absorbed and utilized by ryegrass, which can quickly play the role of fertilizer and promote ryegrass to return to green.
5, harvesting:
You can mow the grass for the first time 40-50 days after sowing. No matter whether you grow well or not, you must harvest when you mow the grass. The stubble left by the first harvest should not be less than an inch. After that, it should be harvested every 20-30 days according to the growth of grass.