A Detailed Guide to the Latest Management Methods for Rice at the Full Heading Stage

Rice is the staple food of southern China and one of the most important economic crops, with a very wide planting area in our country. Dr. Yuan Longping even developed hybrid rice, solving the food and clothing problem for nearly half of our country'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 during the full heading stage. So how should it be managed during the rice full heading stage? Let's take a look below!

1. Reasonable irrigation

After the rice full heading stage comes the grain-filling stage, and the water demand during the grain-filling stage is especially large, so irrigation should be strengthened, following the principle of frequent light applications. This can not only enhance the permeability of the soil, but also promote the growth and development of the rice roots, improve the growth performance of the leaves, and increase yield. The specific amount of irrigation depends on the growth condition and water content.

2. Clearing weeds

Weeds in the soil will compete with rice for nutrients and water, hindering the growth and development of the rice to a certain extent. Therefore, weeds in the field and around the field ridges should be cleared in time, and during the full heading stage, weeds should be removed appropriately according to their growth condition. This can not only enhance the growth vigor of the rice, but also help the permeability of the field and promote the early ripening of the rice.

3. Timely topdressing

The full heading stage is a period when rice growth accelerates, and at this time rice is also prone to lodging, so in order to suppress the occurrence of this phenomenon and promote the plumpness of the rice grains, we should spray an appropriate amount of phosphorus and potassium fertilizer or foliar fertilizer during the full heading stage. This helps reduce lodging, promote early ripening of the rice, increase yield, and improve quality.

4. Raising the water temperature

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

5. Preventing and controlling diseases

The rice full heading stage is a period of high incidence of diseases and insect 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 insect pests, with emphasis on plants that have strong growth and plump grains. The harm of diseases and insect pests will lead to a large reduction in rice yield or even total crop failure, so corresponding measures should be taken according to the different diseases and insect pests.

6. Preventing lodging

Lodging is the most common problem during the rice full heading stage; lodging will reduce rice yield and increase the rate of empty grains in rice. We need to strengthen the fertilizer and water management of rice, and we can spray calcium phosphate to slow down the growth rate of the lower leaves and enhance lodging resistance.

7. Excessive vegetative growth and premature senescence

During the full heading stage, it is necessary both to prevent excessive vegetative growth and late ripening and to prevent premature senescence of the rice. For rice with overly tender but very large leaves and a relatively slow growth rate, ethephon can be used to promote growth. For prematurely senescent rice, grain fertilizer can be used to enhance growth vigor, and moistening foliar fertilizer can be applied to prevent premature senescence.

The above points are the management methods during the rice full heading stage. The full heading stage is the most important period for 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 on Qinnong Web.