In the modern rice production, the traditional weeding was abolished by chemicalherbicide.
在现代水稻生产中，传统的耘耥已因化学除草而废止。
2
New quinclorac is an excellent chemicalherbicide for controlling barnyard grass in paddy fields.
新型二氯喹啉酸是水稻田防除稗草的优良化学除草剂。
3
Applying plant allelopathy to inhibit weeds can not only efficiently reduce the use of chemicalherbicide and cost, but also protect environment and improve crop product.