The difference between barnyardgrass and gold

Barnyardgrass and Echinochloa chinensis are very common weeds in rice fields, which are difficult to distinguish because of their similar appearance, so what is the difference between barnyardgrass and Echinochloa barnyardgrass?

First, the introduction of barnyardgrass and gold

1. Barnyardgrass

Barnyardgrass is an annual herb of Gramineae and paspalum, which is very similar to rice seedlings in appearance.

2. Thousands of gold

Qianjin is an annual plant of the genus Gramineae. The culm is erect, 30-90 cm high, and the leaf sheath is glabrous, mostly shorter than the internodes; the ligule is membranous, 1-2 mm long.

Second, the difference between barnyardgrass and gold.

Can be distinguished from the root of the phimosis (ligule, auricle, pillow), Qianjin has leaf pillow and auricle, no ligule; paspalum has leaf pillow, no ligule and auricle.

Where:

The leaf tongue refers to the ventral side where the leaf meets the leaf sheath, with a membranous projection.

Auricles refer to a pair of slightly ear-shaped protrusions on both sides of the ligule that protrude from the basal edge of the leaf.

Leaf pillow refers to the banded structure with slightly lighter color on the outside of the junction of leaves and leaf sheaths in Gramineae.

III. Prevention and control methods

1. Hand-pull: because rice transplants or throws seedlings after tillering, paspalum grass and Qianjin grow naturally, so there are more bifurcations near the roots, and the roots of paspalum grass and Qianjin are much smoother than rice. The seedlings are hairy in the leafy place, but there is no paspalum grass or gold, so they can be pulled out when they are older and easier to distinguish.

2. Pesticide application: 2-4 days after budding in the direct seeding field, 30-45 kg of water was evenly sprayed with water, and the field board was kept moist before and 3-5 days after application, and then returned to normal field management. the mixed preparations of dichloroquinolinic acid, dichloroquinolinic acid and dichloroquinolinic acid were used in transplanting and transplanting fields, 10-20 grams per mu and 30-45 kilograms of water were sprayed evenly.