1、Thirsty for solutions: How potassium drives sugarcane's varietal

However, high potassium (HK) fertilization resulted in notable improvements in some varieties grown under DS conditions, compared to medium potassium (MK) fertilization.

2、Effects of fertilization depth on sugarcane quality and soil fertility

Optimizing the fertilization ratio to N:P 2 O 5:K 2 O at 5:1:5 (comprising 0.134 kg/m 2 of urea, 0.104 kg/m 2 of potassium chloride, and 0.093 kg/m 2 of calcium superphosphate) and setting the...

3、Optimal potassium fertilization mitigates drought stress effects on

Here, we revealed that drought significantly affected sugarcanes' growth and physiological characteristics as it decreased plant height, stem diameter, chlorophyll content, photosynthetic...

Sugarcane Fertilizer Schedule: Explore Dosage, NPK Ratio, and Nutrient

NPK ratios, indicating the proportion of nitrogen, phosphorus, and potassium in fertilizers, are crucial for optimal crop nutrition. Common ratios include 4:2:1, 2:1:1, and 1:1:1, catering to different crop needs.

Effects of Potassium Fertilization Application on Microbial Community

To explore the impact of potassium application on sugarcane root microbial characteristics and the transcriptome changes, this study collected sugarcane root samples at the tillering stage under four potassium fertilization gradients.

The Effects of Potassium on Growth, Development, Yield and Quality of

As an excessive uptake of K by the sugarcane depresses the recovery of sucrose during milling, K fertilization of sugarcane must be kept just adequate to produce an optimum yield and to help regulate maturity so that maximum sugar is recovered from the millable canes.

Optimal Fertilizer for Growing Sugarcane: What You Need to Know

Sugarcane needs ample amounts of nitrogen, phosphorus, and potassium for robust development. The best time to begin fertilizing Sugarcane is in the spring. Consistently check soil pH to maintain a range of 5.5 to 6.5 for optimal health. Get expert plant care tips, identify diseases, and optimize your plant's health with our AI-powered app.

Optimal potassium fertilization mitigates drought stress effects on

This study conducted a two-factor experiment following a completely randomized design in a greenhouse to evaluate the effects of potassium application (in soil) on the growth and physiology of a sugarcane cultivar named ROC27 (ROC27 cv.) under a drought condition.

Influence of foliar and soil potassium fertilizer on ratoon sugarcane

In conclusion, foliar K supplementation, particularly with KNO₃ and K₂SiO₃, is an effective strategy for maintaining sugarcane productivity, and improving nutrient use efficiency, especially when K fertilizer is unavailable or costly.

Sugarcane Soil Fertility Recommendations for 2026

When considering a sugarcane soil fertility program, follow these guidelines. The number one priority should be the soil pH. Soil pH that is outside the optimum ranges will adversely affect the availability of all other applied nutrients.

Sugarcane, widely cultivated in tropical and subtropical regions, undergoes growth stages including germination, tillering, jointing, tasseling, and maturation. The application of potassium fertilizer is critical to enhancing yield and quality throughout its growth cycle. Below is a detailed analysis of the optimal timing for potassium fertilization:

1. Germination Stage (Germination to Early Tillering)

During the germination stage, nutrient requirements are relatively low, focusing on root system development and soil structure establishment. Applying potassium fertilizer during this phase promotes robust root growth, enhances water and nutrient uptake, and supports healthy plant establishment.

• Timing: Typically in spring, after soil thaw and rising temperatures. Adjust timing based on local climate conditions.

2. Jointing Stage (Late Tillering to Pre-Jointing)

This is a critical period for rapid growth, with increased demand for nutrients, particularly potassium. Potassium aids sugar synthesis, transport, and overall quality improvement.

• Timing: Late spring to early summer, during warmer temperatures and higher rainfall. Fertilizing during this period boosts photosynthesis and sugar accumulation.

3. Tasseling Stage (Jointing to Pre-Tasseling)

As sugarcane enters tasseling, nutrient demands peak. Potassium ensures normal pollen development, effective pollination, and higher seed setting rates.

• Timing: Summer, especially during hot and rainy seasons. Fertilization enhances photosynthesis, respiration, and sugar accumulation.

4. Maturation Stage (Post-Tasseling to Harvest)

In the final growth phase, nutrient needs decline, but moderate potassium application remains beneficial. It promotes sugar conversion and storage, improving quality.

• Timing: From autumn to winter. Even with reduced demands, timely application extends storage life and maintains quality.

5. Comprehensive Recommendations

• Climate-Adapted Planning: Adjust fertilization schedules based on regional weather. For example, apply potassium before rainy seasons to maximize photosynthetic efficiency, while reducing doses during heavy rain to prevent root diseases.
• Soil Analysis: Consider soil fertility, texture, and pH. Increase potassium in deficient soils; reduce or substitute fertilizers in nutrient-rich soils.
• Scientific Application Methods: Combine potassium with other fertilizers to improve efficiency. Use drip or fertigation to deliver nutrients directly to roots, minimizing loss and enhancing uptake.

the optimal timing for potassium fertilization in sugarcane varies by region and climate. Flexible planning and scientific practices ensure higher yields, improved quality, and greater economic returns.