Key points of Management at tillering stage of Rice

Rice entering the tillering stage is the key period to determine the effective tiller, which is the basis for obtaining high yield, so the management of rice tillering stage is very important. In order to cultivate strong seedlings and lay a high yield foundation, it is necessary to take good management measures at the tillering stage, so how to manage the tillering stage of rice? Come and have a look with the editor.

1. Scientific management of water

The field water level of 3-4 cm should be maintained after rice transplanting, so that the field can form a reasonable heat preservation and moisturizing environment, promote the new roots to germinate and turn green quickly. After entering the green stage, the seedlings have also entered the tillering stage, which should be irrigated in shallow water, generally keeping the water level at 2-3 cm. When the rice tillers reach the expected number of tillers, they should be drained and sunburned in time. Drying the field can first inhibit and then promote, and play a good role in controlling rice population, promoting the transformation of rice vegetative growth to reproductive growth, and cultivating large panicles and multiple grains. Drying the field is to adopt the principle of heavy drying of cement fields, low-lying fields, over-fertile fields, sandy fields and thin fields, generally until the fields are cracked, the feet do not sink, the leaves fade, and the leaves stand upright.

2. Early application of tiller fertilizer

The fertilizer requirement of rice increases gradually after turning green, when the roots are mostly distributed in the topsoil, and the nutrient supply is insufficient, so it is necessary to apply early at the tillering stage, generally applying 5-6 kg urea per mu and spreading evenly to maintain the shallow water layer. Fertilization should grasp the principle of less application in fertile fields and more application in thin fields. Tillering fertilizer is generally applied immediately after turning green, but fertilization should not be flooded, depending on the seedling fertilization, the first application is 80%, the remaining 20% depends on the growth of the field, less in places with good growth, and more in places with poor growth. After fertilization, keep the water layer, can not drain, naturally dry and then irrigate.

3. Pest control

The main control is leaf blast. In the early stage of leaf blast, 75% tricyclazole or 40% Fuji No. 1 EC 100 ml per mu can be evenly sprayed with 30 kg water. Insect pests are mainly rice borer, rice planthopper, for the control of rice borer, generally use triazophos EC 100 ml or insect sheet 50 grams, spray 30 kg of water. To control rice planthopper, 20 grams of imidacloprid wettable powder or 100 milliliters of dichlorvos were sprayed with 30 kilograms of water per mu.

The above is the main points of rice tillering stage management introduction, hope to help you, want to know more related knowledge, please pay attention to us.