1、The split injection of water
Two-split injection of water-soluble fertilizers (IF) eliminated N surplus at the mid-season aeration stage. Two-split IF significantly reduced N 2 O, CH 4 and NH 3 emissions simultaneously. Two-split IF offered higher rice yield, harvest index and net economic benefit.
2、Frontiers
Key issues in the application of precision water–fertilizer technology include low fertilization precision, challenges in integrating water and fertilizer, and the variability of crop nutrient requirements.
3、Can the Integration of Water and Fertilizer Promote the Sustainable
Compared with FEM, AIM can effectively improve the utilization efficiency of water and fertilizer resources and reduce carbon emissions. This study presents a mechanized water and fertilizer management approach suitable for large-scale rice production systems in China.
4、Methods of Fertilizer Application in Rice Plants
Each method of fertilizer application has its advantages and limitations, making it crucial for farmers to select the appropriate technique based on their specific conditions, resources, and crop requirements.
5、Effects of water
The highest comprehensive evaluation and economic benefit of rice under intermittent irrigation was the application of silicon fertilizer at the tillering stage. It was concluded that the suitable time for applying water-soluble silicon fertilizer to rice under intermittent irrigation was the tillering stage.
Effects of different water management and fertilizer methods on soil
To maintain farmland soil tillage and the health of the growing environment, we determined the best regulation methods of humic acid fertilizer and irrigation for farmland growing environments...
Promotional Effect of Water Soluble Fertilizers on Growth and Yield of
The present study aimed to study the effect of foliar nutrition of water-soluble fertilizers for enhancing yield and quality of rice during Kharif-2019 in clay loam soils of wetland farms,...
Crop Guide: Rice Cultivation
Foliar application of Haifa Bonus water soluble fertilizer provides the exact composition of plant nutrients for optimal development of rice crop, when absorption of nutrients from the soil is disturbed.
Co
This study investigated urea assisted artificial humification of rice straw under room temperature, aiming at producing water-soluble humic acid fertilizer and crude cellulose from agricultural wastes with a single treatment.
Effects and potential of optimized fertilization practices for rice
Reducing fertilization, postponing N application, S/CRFs, straw incorporation, and green manuring are five eco-friendly practices with wide distribution, low inputs, and good effects.
Application Method of Water-soluble Fertilizer for Rice
As a crucial food crop, rice has significant nutrient demands during its growth. Water-soluble fertilizers play an essential role in rice fertilization due to their ease of dissolution and absorption. Below are detailed methods for applying water-soluble fertilizers to rice:
1. Select Appropriate Fertilizer Types
When choosing water-soluble fertilizers, select the appropriate type based on the rice growth stage, soil conditions, and target yield. Common water-soluble fertilizers include nitrogen fertilizers (e.g., urea, potassium nitrate), phosphorus fertilizers (e.g., superphosphate, potassium dihydrogen phosphate), and potassium fertilizers (e.g., potassium sulfate, potassium chloride). Micronutrient fertilizers (e.g., boron, zinc, iron, manganese) can also be added as needed.
2. Determine Fertilization Rates
Fertilization rates depend on factors such as the rice growth stage, soil fertility, and climatic conditions. Generally, higher rates are required during the tillering and booting stages, while amounts should be moderately controlled during the heading and grain-filling stages. Specific rates should follow local agricultural department guidelines or field trial results.
3. Application Methods
(1) Base Fertilization: Prior to rice planting, evenly spread water-soluble fertilizers over the field and incorporate them into the soil via plowing. Base fertilizers should account for 60%–70% of the total fertilization to meet nutritional needs throughout the entire growth period.
(2) Topdressing: Apply additional fertilizers during critical growth stages. Topdressing is typically divided into two applications: the first during the early tillering stage and the second during the booting stage. Dilute the fertilizer with water before flush application to ensure rapid absorption and utilization.
(3) Foliar Spraying: Supplement nutrients through foliar spraying of water-soluble fertilizers during the rice growth period. This method improves fertilizer use efficiency and reduces soil contamination. Apply on sunny, windless days to minimize nutrient loss.
4. Timing of Fertilization
Choose fertilization times considering temperature, sunlight, and soil moisture. Early morning or evening are optimal, as lower temperatures reduce volatilization losses. Avoid midday applications during hot seasons to prevent harming rice growth.
5. Precautions
(1) Avoid Over-fertilization: Excessive fertilization can stunt rice growth or induce diseases. Carefully control application rates.
(2) Prevent Mixing with Pesticides: Chemical reactions between water-soluble fertilizers and pesticides may reduce efficacy. Avoid combining them to prevent phytotoxicity.
(3) Soil pH Considerations: Different fertilizers suit varying soil pH levels. Choose fertilizer types based on soil acidity or alkalinity.
(4) Balanced Nutrient Ratios: Ensure proportional blends of nutrients in water-soluble fertilizers to meet rice’s comprehensive growth needs.
effective application of water-soluble fertilizers for rice requires careful consideration of fertilizer types, rates, timing, and precautions. Scientific fertilization ensures adequate nutrition, promotes healthy growth, and enhances yield and quality.
