What is the difference between barnyard grass and rice? Let me teach you a quick way to tell them apart

Barnyard grass is a vicious weed in rice fields, competing with rice for nutrients in the paddy field, and farmers need to remove it. However, its appearance is extremely similar to rice, and many people cannot tell them apart. Below is an introduction to the difference between barnyard grass and rice.

1. The difference between barnyard grass and rice

Difference 1, different attributes: barnyard grass and rice are both grasses (Poaceae), but barnyard grass is an annual herbaceous plant of the genus Echinochloa, while rice is an annual herbaceous plant of the genus Oryza.

Difference 2, different leaves: barnyard grass leaves are green, darker than rice, with white veins, and the leaves are relatively smooth and hairless, with no ligule or auricle. The leaf blades and veins of rice are entirely green, the leaves are relatively rough, and it has a ligule and auricle, with fine hairs growing on the auricle node (that is, the ligule).

2. How to remove barnyard grass?

Method 1, pull by hand: in the early stage, this grass grows together with rice. When hoeing around the seedlings, it was not removed, and because it grows in the gaps between rice plants, it is very difficult to remove. At first you may not be able to tell them apart, but once it grows a bit larger it becomes easier to distinguish. Once you can tell barnyard grass from rice, you can pull out the barnyard grass by hand.

Method 2, apply pesticide: 2-4 days after sowing the sprouted seeds, you can use bensulfuron-methyl · pretilachlor (with safener), pyrazosulfuron-methyl · pretilachlor (with safener), pretilachlor (with safener), etc., diluted with water and sprayed; after rice reaches the 2.5-leaf stage, you can use quinclorac, quinclorac and quinclorac mixed formulations, etc., diluted with water and sprayed, and in severe cases you can use penoxsulam (RiceJie) diluted with water and sprayed.