1、Using slow

Furthermore, compared to conventional chemical fertilizer treatment, the treatment of lignin-based slow-release fertilizer application with a 15 % fertilizer reduction significantly reduced the concentration of alkaline nitrogen by 19.9 % and available phosphorus by 22.0 % at the 20–40 cm soil layer during the maturity period of litchi growth.

2、What is the law of fertilizer requirement of litchi? How to apply

Litchi fertilization can be referred to the following methods: (1) Fertilizer requirement characteristics of litchi according to the determination, for every 1000 kg mature fruit in an orchard with a yield of 1000 kg per mu, 9.8kg of nitrogen, 1.1kg of phosphorus and 6.6kg of potassium were needed, and the proportion of fertilizer needed was 10 ...

3、Guidance for scientific fertilization of litchi planting in autumn and

(2) Young trees with no fruit or less results: 5-10 kg of organic fertilizer per plant, 0.4-0.6 kg of nitrogen fertilizer (N), 0.1-0.15 kg of phosphate fertilizer (P2O5), and 0.3-0.5 kg of potassium fertilizer (K2O).

Litchi

In India litchi is grown mostly in the fertile belt and hence very little or no fertilizer is given. However, soil analysis should be done to determine the exact doses of fertilizer.

Fertilizer application rate and nutrient use efficiency in Chinese

We reviewed 476 papers from 1990 to 2021 to investigate the changes in the conventional application rate (CAR) and nutrient use efficiency (NUE) of fertilizers. The results indicated a decrease in the CAR of nitrogen (N) and phosphorus (P) fertilizers from 1993 to 2020.

Effect of application ratio of potassium and nitrogen on litchi fruit

The K contents in the epicarp and endocarp are significantly and positively correlated with the relative leakage rate of the peel, whilethe Ca content in the epicarp is significantly and negatively correlated with the relative leakage rate of peel.

Analysis on Technical Efficiency and Influencing Factors of Chemical

The average technical efficiency of chemical fertilizer application for litchi growers was 0.419 in the survey areas. Compared with the optimal 100%, the chemical fertilizer utilization rate in litchi production was low.

4 Tips for Fertilizing Your Litchi

For young trees, aim for 1-2 pounds of fertilizer per year. This supports their early growth without overwhelming them. Mature trees, on the other hand, may require up to 5-10 pounds, depending on their size and overall health. Adjust the amount based on how well your tree responds to fertilization.

Management of Litchi Tree after Harvest

Fertilisers should be applied immediately after harvest and tree pruning. The rate of fertilizer to be applied may vary depending on the tree age and canopy size. The table below provides an indication of the amount of fertiliser to be applied based on tree age.

(PDF) Dynamic changes of nutrition in litchi foliar and effects of

(2) Under the same N application conditions, the yield and planting benefits of litchi initially increased and then subsequently decreased with increasing K2 O/N ratio. litchi had the highest...

Determining the appropriate amount of nitrogen fertilizer for litchi per mu (a traditional Chinese unit of area, approximately 0.067 hectares) is a question involving litchi cultivation techniques. Litchi, as a tropical fruit, has specific requirements for soil and climatic conditions. Reasonable application of nitrogen fertilizer is crucial in its cultivation. Below, I will explain how to apply nitrogen fertilizer to litchi properly from several aspects.

I. Soil Conditions and Nitrogen Requirements

1. Soil Type: Different soil types have varying nitrogen demands. Sandy soils drain well but retain water poorly, making them suitable for high-nitrogen fertilizers. Clay soils retain water well but drain poorly, requiring moderate-nitrogen fertilizers. Before fertilization, it is essential to understand the soil type to select the appropriate nitrogen source.

2. Soil Fertility: Soil fertility significantly impacts nitrogen application rates. Higher-fertility soils, rich in nutrients, require less nitrogen. Conversely, low-fertility soils need increased nitrogen to meet litchi’s growth demands.

3. Litchi Growth Stages: Nitrogen requirements vary across litchi’s life cycle. During the young fruit stage, litchi demands more nitrogen to support fruit development. In the maturation stage, nitrogen needs decrease, as excessive nitrogen can harm fruit quality and taste. Follow the principle of "small amounts, multiple applications" to avoid over-fertilization.

II. Fertilization Methods and Techniques

1. Basal Application: Spread nitrogen fertilizer evenly on the soil surface, then incorporate it into the soil through tillage. Suitable for large-scale litchi planting, this method ensures uniform distribution and improves fertilizer efficiency.

2. Ditch Application: Apply nitrogen fertilizer in ditches between or around litchi rows, then cover with soil. This prevents direct root contact with fertilizer, reducing root burn. Ditch application also enhances soil structure, aeration, and water retention.

3. Hole Application: Apply nitrogen directly into small holes around litchi roots, then cover with soil. Ideal for small orchards or potted litchi, this method maximizes fertilizer use and simplifies management.

4. Foliar Spraying: Dilute nitrogen fertilizer and spray it onto litchi leaves. This rapidly replenishes nitrogen, boosting yield and quality. use appropriate concentrations and timing to avoid leaf damage.

III. Key Considerations and Recommendations

1. Fertilizer Type: Choose nitrogen sources based on soil conditions and litchi needs. Common options include urea (cost-effective, water-soluble, suitable for topdressing), ammonium nitrate, and ammonium sulfate (better for basal or seed application).

2. Application Rate: Adjust nitrogen amounts according to growth stages and soil fertility. Higher rates are needed during young fruit and maturation stages, but avoid over-fertilization to prevent damage.

3. Timing: Fertilize during cool periods (e.g., morning or evening) to reduce evaporation. Avoid applying during rain to prevent nutrient loss.

4. Application Method: Tailor methods to soil type and litchi needs. Use ditch or hole application for sandy soils; basal or foliar spraying for clay soils. Never allow fertilizer to touch roots directly to avoid burns.

Reasonable nitrogen application is critical for improving litchi yield and quality. Consider soil conditions, growth stages, and application methods to optimize results. Pay attention to fertilizer type, rate, timing, and method to ensure healthy litchi growth and economic benefits.