Fertilizing Summer-Autumn Rice Crops During Prolonged Hot and Dry Weather

The summer-autumn rice crop is characterized by complex weather patterns. Understanding proper fertilization techniques will help farmers cultivate their crops more effectively, avoid drought impacts, and ensure high yields for the entire season. Join Viet Nga Fertilizer in exploring how to fertilize summer-autumn rice crops for high yields in the article below!

1. Weather conditions during the summer-autumn crop season

“The strong wind, the golden sunlight spreading across the fields, and the smoke rising high from burning fields are all signs that the summer-autumn harvest season is approaching.”

The summer-autumn crop season is characterized by the need to sow seeds under conditions of alternating hot sunshine and early season rains, making the soil prone to acidification. There isn’t enough time for the soil to dry and plow, leading to organic contamination, and the hot sun and thunderstorms cause fertilizer loss.

Therefore, measures aimed at increasing productivity, reducing losses, and preventing lodging are of great importance in cultivating rice during this summer-autumn season.

Please refer to the article “Guide to Proper and Environmentally Safe Handling of Rice Straw”.

2. Nutritional requirements of rice plants during the summer-autumn crop season.

The nutritional requirements of rice plants, or in other words, the essential nutrients indispensable for the growth and development of rice plants, include: Nitrogen (N), Phosphorus (P), Potassium (K), Lime, Iron, Zinc, Copper, Magnesium, Manganese, Molybdenum, Boron, Silicon, Sulfur, Carbon, Oxygen, Hydrogen,…

The three nutrients that rice plants need in large quantities are nitrogen, phosphorus, and potassium. These are essential for the life processes that take place in the rice plant.

Fertilizers play a crucial role in the growth and development of rice plants; they are essential throughout the entire process, from seedling stage to harvest.

The nutrients in fertilizers provide different roles for rice plants, with varying amounts supplied during the plant’s growth and development.

3. The “4 Right” principles of fertilizing rice in the summer-autumn crop season.

Canh tác trong vụ hè thu để cây lúa có thể sinh trưởng và phát triển tốt nhất thì cung cấp phân bón cho lúa là việc vô cùng cần thiết.

Besides providing fertilizer, farmers must also pay attention to applying fertilizer according to the “four correct principles” so that plants can absorb nutrients in the best way, avoiding waste and saving costs.

3.1. Correct classification

Each type of fertilizer contains different nutrient levels, suitable for different stages of rice growth. Applying the right type of fertilizer ensures that the rice receives the necessary nutrients.

For different soil types, choosing the right fertilizer will help maintain a stable soil environment. In acidic soils, avoid fertilizers with high acidity; in alkaline soils, avoid fertilizers with strong alkalinity.

3.2. Correct Quantity

Each stage of rice growth requires the right amount of fertilizer to ensure the plant grows and develops well.

Using the correct dosage of fertilizer also helps save money, meets the needs of the plants, and avoids wasting fertilizer.

Throughout its life cycle, rice plants always have nutritional needs, so farmers should apply fertilizer in multiple doses with appropriate amounts for the summer-autumn rice crop.

3.3. Timely

The summer-autumn crop season took place amidst unpredictable weather patterns, with intense heat affecting the effectiveness of fertilizer application on rice.

Applying fertilizer at the right time helps rice plants meet their nutritional needs, leading to more favorable growth and development.

In addition, applying too much fertilizer at once leads to waste, environmental pollution, and plants that don’t use it all will become deformed, more susceptible to disease, and have low yields and quality.

3.4. The right way

Fertilizers are typically applied in two ways: root application and foliar application. Each type of fertilizer requires a different application method to ensure optimal absorption by the rice plants.

For root fertilization, apply it to the planting hole, canopy, or spread evenly on the ground. For foliar fertilization, spray evenly on the leaves; wetting both sides of the leaf is even better.

4. How to fertilize summer-autumn rice crops.

Given the unfavorable climate conditions, farmers should pay attention to choosing appropriate fertilizers to ensure good rice yields and production during this summer-autumn crop season.

Let the technical team of Viet Nga Fertilizer share with you our fertilizer application solution for rice cultivation in the summer-autumn season on this 1300m2 rice field!

With harsh weather conditions and prolonged heat affecting fertilizer efficiency, nitrogen fertilization in rice crops is subject to significant evaporation and loss. Therefore, high doses of nitrogen fertilizer or products that reduce nitrogen loss are necessary.

Viet Nga Urea 46N+ fertilizer reduces nitrogen loss, increases fertilizer efficiency, helps plants grow and develop healthily, thereby increasing yield, quality, and economic efficiency.

DAP 18-46 fertilizer effectively supplies nitrogen and phosphorus to plants, promoting leaf and branch growth for healthy rice plant development, increasing nitrogen concentration in plants, and improving crop quality.

Refer to the article “Applying DAP Fertilizer Correctly for High Efficiency”.

Viet Nga Potassium Chloride 61 fertilizer provides potassium in an easily absorbable form for plants, helping them enhance their resistance to diseases and pests, promoting good growth and development, while also improving soil structure and enabling plants to absorb nutrients more effectively.

5. Notes on rice cultivation during the summer-autumn season.

– Do not spread fertilizer when it is about to rain, as it may be washed away.

– Clean the fields and let the soil dry out for 15 to 20 days before sowing to avoid organic poisoning in rice plants.

– The minimum fallow period between two rice crops is 3 weeks, to allow the soil to recover after harvest.

Farmers should choose varieties that are suitable for the weather conditions during the summer-autumn season to ensure high yields.

– Apply fertilizer in a balanced manner, regulating nutrients appropriately for the summer-autumn rice crop, avoiding overuse of fertilizers, which can lead to disease outbreaks and damage to the rice crop.

– To prevent saltwater intrusion, farmers need to take precautionary measures to avoid water shortages for irrigation.

Conclusion

Fertilizing summer-autumn rice crops during prolonged hot weather to achieve the highest yield requires thorough preparation and the application of proper care techniques. This will help ensure crop productivity and help farmers achieve maximum profit.

Viet Nga Fertilizer hopes that this article has provided farmers with the necessary knowledge to cultivate effectively during this summer-autumn crop season.

Wishing everyone a bountiful harvest!