水稻长期栽培于养分浓度低的水田环境，能适应低浓度营养，具有喜铵（NH₄⁺-N）、吸一磷酸能力强、吸 Fe 能力弱特点。因此，水稻营养液中磷酸盐浓度不宜高，20mg/L 磷酸即可，Fe 浓度应适当增加。目前常用的水稻营养液有木村 B 营养液 (Kimura B)、春日井营养液和国际水稻所常规营养液 (Yoshida）。
Yoshida 水稻营养液又称国际水稻研究所营养液或吉田昌一水稻营养液，由 88.6mg/L 钙盐、91.4mg/L 铵盐、71.4mg/L 钾盐、40.3mg/L 磷酸盐、324mg/L 硫酸镁等组成，总含盐量约为 640mg/L，不含硅酸钠，pH 为 5.0。该试剂仅用于科研领域，不宜用于临床诊断或其他用途。
操作步骤(仅供参考)：
1、按实验具体要求操作。一般直接使用。如有需要，可自行添加硅酸钠至 200(mg/L)。
注意事项：
1、硅酸钠对于水稻生长起重要作用。硅酸钠呈碱性，如需添加硅元素，工作液 pH 值会降低，可用 NaOH 调至生长所需 pH 值。
2、本产品仅供科研使用。请勿用于医药、临床诊断或治疗，食品及化妆品等用途。
3、试剂开封后请尽快使用，以防影响后续实验效果。
4、为了您的安全和健康，请穿实验服并戴一次性手套操作。
5、本产品仅供科研使用，严禁它用。
Rice has long been cultivated in paddy fields with low nutrient concentrations and is adapted to low-nutrient conditions. It prefers ammonium nitrogen (NH₄⁺-N), possesses strong capacity for monophosphate uptake, yet has weak iron (Fe) absorption ability. Accordingly, the phosphate concentration in rice nutrient solution should not be high; 20 mg/L phosphoric acid is sufficient, while the Fe concentration needs to be elevated appropriately. Commonly adopted rice nutrient solutions include Kimura B Solution, Kasugai Solution and the standard Yoshida Solution developed by the International Rice Research Institute (IRRI).
Yoshida Rice Nutrient Solution, also named IRRI Nutrient Solution or Masahiko Yoshida Rice Nutrient Solution, consists of 88.6 mg/L calcium salts, 91.4 mg/L ammonium salts, 71.4 mg/L potassium salts, 40.3 mg/L phosphate and 324 mg/L magnesium sulfate. Its total salt content is approximately 640 mg/L without sodium silicate, and the pH value is 5.0. This reagent is exclusively for scientific research and shall not be applied to clinical diagnosis or other purposes.
Operating Procedures (For Reference Only):
1. Operate in accordance with specific experimental requirements. The solution can generally be used directly. Sodium silicate may be supplemented up to 200 mg/L if necessary.
Precautions:
1. Sodium silicate plays a vital role in rice growth. Since sodium silicate is alkaline, the pH of the working solution will drop after silicon supplementation. Adjust the pH to the optimal level for rice growth with NaOH.
2. This product is limited to laboratory research. Do not use it for medicine, clinical diagnosis and treatment, food, cosmetics or other commercial applications.
3. Use the reagent promptly after opening to avoid adverse effects on subsequent experiments.
4. For your personal safety and health, wear a lab coat and disposable gloves during operation.
5. This product is for research use only; any unauthorized application is strictly prohibited.
ZJ26F0939249
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