Alfalfa grass planting season: spring and fall; planting methods: seed treatment, seed disinfection, land preparation, sowing, field management.

I, planting season

1, spring

Spring sowing time for the end of March to the beginning of April, when the soil humidity is large, easy to get all the seedling, do not recommend too late sowing, because too late in the spring drought, the emergence of the seedling difficulties.

2, fall

Autumn sowing time for the end of August to early September, this period of soil is good, the temperature is suitable, the weed growth slows down, the highest success rate of sowing. No matter when to sow, should be combined with rain or irrigation. After sowing, compression is favorable to seed germination.

Two, planting methods

1, seed treatment

The hard solidity rate of alfalfa grass seed is 10 to 30%, that is, this part of the seed can not absorb water to expand and germinate, in the sowing of the seed before the need for appropriate treatment to improve the germination rate of seeds, in order to improve the seed germination rate can be taken to rub through the seed coat method, with a mill lightly pressed or in the seed mixed with coarse sand for friction to make the seed coat rupture. Seed coat rupture. Or use 50 to 60 ℃ warm water to soak the seeds for 15 to 60 minutes before sowing.

2, seed disinfection

With 1% of the lime water soaked seeds, to prevent the pasture leaf spot disease, with 50 times the formalin soaked seeds to prevent verticillium disease.

3, land preparation

Clover grass seeds are small, weak topsoil force, slow growth in the seedling stage, requires cultivation of the soil should be deep plowing, harrowing is conducive to seedling and seedling growth, per mu of rotted farmyard fertilizer 1,500 to 2,500 kilograms, if it is the acidic soil but also a little bit of lime, in the southern region of the lime per mu of 10 to 20 kilograms.

4, sowing

Clover grass seeds are small, weak topsoil, sowing depth is generally 2 to 4 cm, more strip sowing, row spacing of 40 to 45 cm, the amount of seed sown per acre is 1 to 1.5 kg.

5, field management

After sowing the seeds can generally be 6 to 10 days after seeding, when the plant height of 5 to 8 centimeters, it must be timely plowing and weeding, in order to avoid the harm of weeds. At the time of the annual return of green, each time after harvesting conditions can be irrigated green water and fertilizer.

Planting alfalfa grass notes

In planting alfalfa field management work is more, we first need to check the field for seedlings, if found to have dead seedlings or inverted seedlings, it is necessary to replenish the seedlings and support the seedlings, and then it is to give the young, the seedlings to be watered and fertilizer, alfalfa growth needs sufficient water, but at the same time the field can not have Stagnant water, the emergence of stagnant water should be discharged in a timely manner.

As for the fertilization of alfalfa, it has a special bacterial fertilizer, and we can also apply a moderate amount of phosphorus fertilizer and organic fertilizer. You need to weed at least three times a year, usually in the seedling stage and after each harvest, which can promote the growth of alfalfa.

Disease has always been a headache for growers, we must frequently observe the alfalfa in the process of planting alfalfa, if you find a disease, you must deal with it in a timely manner, if not dealt with in a timely manner will lead to the extinction of alfalfa, so if you find a disease you must deal with it in a timely manner.