What to Do About Herbicide Damage to Rice Seedlings? Detailed Remedial Methods
Rice also needs a certain amount of fertilizer and pesticide applied during its growth period so that it can grow better, so what should be done about herbicide damage to rice seedlings during pesticide application?
I. Rice Growth Habits
Rice is a plant of the grass family (Poaceae) and the genus Oryza, and it is also China's most important food crop, mainly planted in paddy fields. There are also many rice varieties, which can be divided according to maturity time into early-maturing, mid-maturing and late-maturing types of rice.
The harvest season and number of harvests of rice also differ between regions. In some regions only one season of rice can be planted per year, while in other regions two or three seasons of rice can be planted.
II. What to Do About Herbicide Damage to Rice Seedlings?
1. Drainage and irrigation can be used for remediation; repeatedly changing the water in the field can reduce the concentration of the herbicide damage, and then a small amount of organic fertilizer can be applied to help the rice seedlings continue to grow;
2. If the herbicide damage is not too serious, a small amount of fertilizer can also be applied to let the rice seedlings resume growth;
3. Gibberellin or natural brassin can also be sprayed for remediation.
III. How to Use Rice Foliar Fertilizer?
Rice foliar fertilizer is a fertilizer that can comprehensively supplement the nutrients needed by rice during the nutritional period and the booting and grain-filling period. Improper use can also easily cause herbicide damage. The correct methods of use are:
1. Generally, spraying is most suitable at the large boot stage, initial heading stage, grain-filling stage and full heading stage of early rice; spraying once per mu takes more than one hour;
2. When using solid foliar fertilizer, it needs to be processed into liquid fertilizer first before use;
3. Fertilize according to the growth condition of the rice seedlings, so that yield can be effectively increased;
4. Spraying should be carried out from the stem elongation and booting stage to the breaking stage of rice, and the spraying time should preferably be chosen on a windless day or cloudy day, or before 9 a.m. or after 4 p.m. when humidity is relatively high and evaporation is relatively low.