Experience in Applying Specialized Fertilizers to Summer-Autumn Rice Crops

In the early days of the summer-autumn crop season, intense heat significantly impacts rice cultivation. Let the technical team at Viet Nga Fertilizer share their experience in using specialized fertilizer solutions for summer-autumn rice crops during prolonged periods of intense heat!

• Fertilizing rice crops during the summer-autumn season amidst prolonged hot weather.
• Guidelines for applying single fertilizers in the summer-autumn rice crop.

1. The effectiveness of specialized fertilizers on summer-autumn rice crops.

1.1. A brief overview of fertilizers specifically for rice cultivation.

Rice plants have different nutritional needs at each stage of growth and development; therefore, providing sufficient and appropriate nutrients is crucial in rice cultivation.

Specialized fertilizers for rice differ from conventional single or mixed fertilizers. These fertilizers have diverse formulas with balanced nutrient compositions, tailored to the nutritional needs of rice plants, their growth and development stages, and the soil conditions of each region.

1.2. Advantages of specialized fertilizers for summer-autumn rice crops.

– Contains many components and nutrients that help provide complete nutrition for rice plants during their growth stages.

– The nutrient content varies flexibly, adapting to the growth needs of the rice plant.

– Convenient to use, no need for mixing calculations like when using single fertilizers.

– Suitable for modern drone-based fertilizer application technology, making rice cultivation more convenient and easier for farmers.

With the above advantages, specialized fertilizers for rice are favored by many farmers for use in their fields.

2. Apply specialized fertilizer for summer-autumn rice crops during prolonged periods of hot weather.

To ensure healthy rice growth and development, farmers should apply fertilizer according to the four correct rules: the right type, the right amount, the right method, and the right time.

Rice plants require different nutrients at different stages of growth and development. Therefore, a proper understanding of each stage of rice development will help farmers save time and costs in care and increase productivity.

With its specialized rice fertilizer solutions, Viet Nga Fertilizer provides the appropriate levels of N, P, and K for each stage of rice growth and development. In addition, the fertilizer supplements micronutrients to help plants become strong and resistant to pests and diseases.

Using this product set will save farmers the effort of mixing fertilizers, making it suitable for air-spreading fertilizer technology, thus saving costs and delivering superior yields. The nutritional requirements of rice are shown in the following table:

Tillering stage:

When rice plants are 8-12 days old (8 days after sowing), it’s time to apply the first round of fertilizer. Use 10-15 kg/1000m2 of NPK 22-15-8 +TE fertilizer specifically designed for rice tillering.

Rice plants at 18-22 days after sowing:
– The next stage is the second topdressing application to help the plants tiller better. The most important thing at this time is using the correct amount and type of fertilizer.
– During this stage, rice needs a lot of nitrogen and phosphorus, so use 12-17 kg/1000m2 of NPK 22-15-8 +TE fertilizer. Farmers should pay attention to the appropriate dosage based on the total area being fertilized.

NPK 22-15-8 +TE (tillering – bushing) is specifically used for rice plants as the first and second fertilizer applications to promote root growth, tillering, increase the number of effective tillers, and stimulate bushing.

At the same time, it helps plants stay healthy, maintain nutrient balance in the soil, increase resistance to pests, diseases, and saline soil conditions, thereby increasing rice yield and quality.

Heading stage:

Fertilizing at the heading stage is extremely important and determines the overall yield of the rice crop. Careful care is needed during this time to achieve a high yield for the season.

– There are 3 criteria for deciding when to apply fertilizer to promote panicle initiation in rice plants:
1. Based on the number of days after sowing, depending on the variety.
2. Based on the panicle stage; the best time to apply fertilizer is when the panicle (head) is 1-3 mm long.
3. The condition of the rice plant, when the leaves turn a yellowish-green color.

During the heading stage, supplementing with NPK fertilizer high in potassium helps to produce long panicles, bright and firm grains, and reduce lodging. Approximately 15-20 kg/1000 m² of NPK 19-7-25 + TE fertilizer will meet the high demand for nitrogen, potassium, and essential micronutrients for rice during this stage.

NPK 19-7-25 + TE (for heading and grain development) provides micronutrients in the soil, helping plants grow healthy, flower, bear fruit, and produce firm grains.

At the same time, it prevents lodging and resists pests and diseases, so the rice plants always grow and develop strongly, with large, evenly flowering panicles, large ears, firm grains, and increased yield.

3. Practical application of specialized fertilizers for summer-autumn rice cultivation.

Demonstration models for specialized rice fertilizers are a practical method for assessing the nutritional needs of rice plants and applying fertilizers appropriately.

In practice, the demonstration model of specialized fertilizer for rice cultivation on the rice field of Mr. Phuong Vu (Thap Muoi, Dong Thap) showed that after the first and second applications of NPK 22-15-8 + TE fertilizer, the rice plants developed exceptionally well: they were large and healthy, produced many tillers, had long roots, and had very vigorous stems.

During the Summer-Autumn 2022 crop season, the demonstration model of specialized rice fertilizers from Viet Nga Fertilizer on Mr. Hung’s field (Tan Hong, Dong Thap) resulted in higher harvest yields compared to the previous season. Simultaneously, investment costs were significantly reduced.

The rice plants are growing very well: They are developing evenly, are green and healthy, with strong and sturdy stems; the root system is growing well, is strong, numerous and longer, and the tillers are developing vigorously and evenly.

In addition, Viet Nga Fertilizer has applied the above solution through demonstration models of specialized fertilizers on farmers’ fields during the winter-spring and summer-autumn seasons.

The improved product quality is clearly demonstrated in the bountiful harvests and high yields achieved by the participating farmers.

We invite you to see the practical effectiveness of this specialized solution through the following models:
– Demonstration model by Mr. Kim Hoang (winter-spring crop).
– Demonstration model by Mr. Bao (autumn-winter crop).

4. Some things to note

– Giữ mực nước ruộng hợp lý khi bón phân tránh để ruộng bị khô hạn vì đạm bị bốc hơi rất nhiều theo các kẻ đất nứt, rễ cây phát triển kém do thiếu nước và lượng đạm vào cây ít.

– Do not apply fertilizer when the rice leaves are still wet, as this can cause leaf burn if the fertilizer sticks to the grains, or the dissolved fertilizer will evaporate.

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

– Balanced N-P-K fertilization is necessary; avoid applying too much nitrogen and lacking phosphorus and potassium, as this can lead to weak, lodging rice plants and increased susceptibility to pests and diseases.

– Keep the rice fields free of weeds because weeds compete with the rice for fertilizer, creating conditions for pests and diseases to develop.

Conclusion

With the somewhat harsh and unpredictable weather conditions, cultivating rice during the summer-autumn season amidst intense heat poses many difficulties for farmers.

Viet Nga Fertilizer’s specialized rice fertilizer has proven its quality through practical demonstration models, helping to overcome some of the difficulties farmers are facing.

Hopefully, this article from Viet Nga Fertilizer has provided you with information about specialized fertilizers for rice cultivation during the summer-autumn season. For any questions about the product or cultivation techniques, please contact our hotline at 02778 55 66 77 for assistance from our specialists!

Wishing you all a successful and bountiful harvest!