How to choose the seeds of rat thatch? What are the methods of raising seedlings?

Rat thatch is a kind of herbaceous green manure plant which can endure cold but not high temperature. it has the function of preventing soil erosion and replenishing organic matter in soil. Many farmers plant rat thatch in orchards. Planting rat thatch in orchard can inhibit the growth of all kinds of weeds and maintain good soil ventilation. So how to choose the seeds of rat thatch? What are the methods of raising seedlings? Next, let's have a look with the editor.

First, how to select the seeds of rat thatch?

The seeds of rat thatch are relatively light and small, so it is difficult to choose mildew-free and full seeds. You can mix the seeds of rat thatch with sand in order to spread more evenly. Pay attention to the choice of fine sand. It is worth noting that if you choose to mix sand and sow seeds, it is best to sow the seeds the next day and mix them the night before. The humidity of the sand is about 40% and 50%. There is a kind of wet feeling. After the seeds are mixed, there will be a state of expansion, so that the seeds will germinate one day earlier.

Second, what are the breeding methods of rat thatch?

1. Sowing and raising seedlings and work before sowing

(1) clear the weeds in the orchard before sowing. Use a rotary plough to spin the soil around 10cm, flatten the ground and sow seeds in time according to soil moisture.

(2) the suitable soil relative water content for emergence of rat thatch is 65% 85%. If the soil moisture is poor, the soil should be watered and seeped in time to ensure sowing on time.

(3) sowing method: artificial sowing is advocated, and the row spacing is 30cm. Of course, measures should be taken according to local conditions, which can be determined according to the actual situation of the orchard.

(4) sowing should choose a windless day to sow. Before sowing, mix the rat thatch seeds and fine sand evenly according to the proportion of 1:10. After sowing, gently hug with an iron rake, and the soil cover should be thin. Like the same kind of wheat, grind it with a mill to ensure that the seeds are in close contact with the soil. Otherwise, the emergence rate will be affected.

2. Seedling stage management

After emergence, rat thatch and fruit trees are watered over the winter at the same time. The following spring irrigation, 15 kg per mu of nitrogen fertilizer (urea), generally in March-April to return to the green period.

3. Points for attention

(1) first of all, cleanly remove weeds from the ground (weeding with herbicides).

(2) strictly observe the sowing period (mid-September to mid-October) and choose a windless day before it rains.

(3) sowing evenly and appropriately (1.5-2.0kg/ mu).

(4) do not cover the soil (do not sow deeply).

The above is the introduction of rat thatch, rat thatch is one of the high-quality green manure grass species, rat thatch has a wide ecological adaptability, can be planted in many areas, mainly distributed in southern Yunnan, Yunnan Province, as well as Shaanxi, Gansu, Henan, southern Jiangxi and southwest regions.

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