How to manage rice at the full heading stage? These management methods you need to master

Rice is the staple food of southern China, one of the most important cash crops, and is grown across a very wide area in China. Dr. Yuan Longping even developed hybrid rice, solving the food and clothing problem for nearly half of China's population. Rice cultivation has also received more and more attention, and how to manage it is the primary problem we need to solve, especially at the full heading stage. So how should rice be managed at the full heading stage? Let's take a look below!

1. Reasonable irrigation

After the full heading stage, rice enters the grain-filling stage, when the water demand is especially high, so irrigation should be strengthened, following the principle of frequent light applications. This not only enhances soil permeability, but also promotes the growth and development of the rice roots, improves leaf growth performance, and increases yield. The specific amount of irrigation depends on the growth condition and water content.

2. Clearing weeds

Weeds in the soil compete with rice for nutrients and water, hindering the growth and development of rice to a certain extent. Therefore, weeds in the field and around the field ridges should be cleared in time, and at the full heading stage weeds should be removed appropriately according to their growth. This not only strengthens the rice's vigor, but also improves field permeability and promotes early ripening of the rice.

3. Timely topdressing

The full heading stage is a period of accelerated rice growth, and at this time rice is also prone to lodging, so in order to suppress this phenomenon and promote full grain filling, we should spray an appropriate amount of phosphorus and potassium fertilizer or foliar fertilizer at the full heading stage. This helps reduce lodging, promotes early ripening of rice, increases yield, and improves quality.

4. Raising water temperature

Rice is a crop that likes high temperatures, and in summer its growth rate speeds up rapidly; entering the full heading stage is also the most important time for rice growth. So we can appropriately raise the water temperature to promote early growth and ripening of the rice; the irrigation system can be wrapped with plastic film in the paddy field to raise the water temperature.

5. Disease and pest control

The full heading stage of rice is a period of high incidence of diseases and pests, such as rice blast, rice false smut and rice planthopper. Therefore, special attention should be paid to the prevention and control of diseases and pests, with emphasis on plants that grow vigorously and have full grains. The damage from diseases and pests can cause a large reduction in rice yield or even total crop failure, so corresponding measures should be taken according to the different diseases and pests.

6. Preventing lodging

Lodging is the most common problem at the full heading stage of rice; lodging reduces rice yield and increases the rate of empty grains. We need to strengthen the fertilizer and water management of rice, and calcium phosphate can be sprayed to slow the growth rate of the lower leaves and enhance lodging resistance.

7. Excessive vegetative growth and premature senescence

At the full heading stage, it is necessary both to prevent excessive vegetative growth and late ripening, and to prevent premature senescence of rice. For rice with overly tender but very large leaves and a slower growth rate, ethephon can be used to promote growth. For rice suffering premature senescence, grain fertilizer can be used to strengthen its vigor and a moistening foliar fertilizer to prevent premature senescence.

The points above are the management methods for rice at the full heading stage. The full heading stage is the most important period of rice growth; if it is not managed well, the rice yield will be greatly affected. Some growth regulators can be used appropriately to promote growth, increase grain weight, and raise yield. That is all for today's introduction; for more related information, stay with Qinnong Network.