What to Do If Rice Suffers Herbicide Damage? Detailed Explanation of Timely Remedial Methods

Rice is one of the most important food crops in Southeast Asia. Its varieties can be divided into two major categories: upland rice and paddy rice. The former is mostly planted in mountainous areas or dry land, while the latter is widely planted in paddy fields. During the planting process, if rice suffers herbicide damage, what should be done?

1. What to do if rice suffers herbicide damage

If many spots appear on rice after herbicide damage, and it is close to yellowing or the whole plant is close to withering, all the water in the field should be drained immediately, part of it replaced with fresh water, and more fertilizer added to supplement the nutrients lost because of the pesticide. If a herbicide was mistakenly sprayed, a large amount of clean water should be sprayed in the field immediately to wash the herbicide off the rice, and the water should be changed repeatedly to reduce the pesticide concentration in the field.

2. Causes of excessive vegetative growth and late maturity in rice

1. Nitrogen fertilizer

Excessive nitrogen fertilizer affects the growth of rice, causing it to be unable to absorb nutrients normally, which leads to an imbalance of nutrients in the rice plant. In the later stage, when the rice should normally mature, it is still continuously absorbing nutrients, resulting in excessive vegetative growth and late maturity. This not only fails to increase yield, but also reduces it.

2. Light

If rice does not get enough light time, its photosynthesis will decline. The rice retains too many nutrients and keeps absorbing and converting them, leading to excessive vegetative growth and late maturity. In addition, if rice is planted too densely, the lower rice leaves press against and block one another and cannot receive light. Insufficient light leads to excessive vegetative growth and late maturity.

3. Water

After transplanting, the water level in the paddy field must be kept at least up to a person's ankle, so that the rice can grow normally. Lack of water prevents the seedlings from absorbing nutrients normally. The rice matures later, and the leaves yellow too late. Of course, there should not be too much water either, otherwise the rice is prone to rotting.

Besides the grain being used for food, the stalks of rice can be used as fuel, woven into straw sandals and straw mats, and used as raw material for papermaking, and can also serve as dry feed for cattle and horses; the husk (that is, the grain husk) can be used as fuel; and the bran is an excellent feed for livestock.