The invention relates to an environmental-friendly
weed killer and a preparation method thereof. The environmental-friendly
weed killer comprises the following components in parts by weight: 10-15 parts of 2,6-dinitro-N,N-di-n-propyl-4-
trifluoromethyl phenylamine, 3-8 parts of
acetochlor, 4-6 parts of
alachlor, 3-5 parts of
pendimethalin, 6-8 parts of
metolachlor, 7-10 parts of
propisochlor, 3-6 parts of
sorbitol, 10-12 parts of
atrazine, 5-10 parts of nicosulfuron, 20-30 parts of
alcohol, 3-5 parts of
citric acid and 3-6 parts of
allicin. According to the environmental-friendly
weed killer, materials are easily available, the cost and the
toxicity are low, the weed killer can be graded, the weed killing effect is fast, the weed killer can penetrate into soil with rainfall, deep-rooting weeds can be effectively killed without damage to growth of crops, the weed killer can be degraded without polluting the environment and damaging
soil nutrients, the stability is strong, oxidation is difficult, the emulsifying effect is good, full fusion of water and
oil can be guaranteed and the lasting time of the weed-killing effect is long.