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Check ec -ph. Sure! Cultivated vegetables. Got all the food?

For Thai vegetables (e.g. kale, morning glory, coriander):

Optimum EC values for Thai vegetables range from 1.2 - 2.0 mS / cm (milliohm / centimeter).

For kale vegetables: The appropriate EC value for kale vegetables ranges from 1.5 - 2.5 mS / cm.

Keeping EC values within a reasonable range will help vegetables get the nutrients they need for growth, without causing nutrient overload or deficiency symptoms.

2. PH

The pH indicates the acidity or alkalinity in the water. If the pH is not in the right range, it prevents vegetables from absorbing nutrients well.

For Thai vegetables (e.g. kale, morning glory, coriander):

The optimum pH is in the range of 5.5 - 6.5 (the value at which vegetables can absorb nutrients well).

For kale vegetables: The optimum pH ranges from 5.5 - 6.5, the same as for Thai vegetables.

EC and pH monitoring and adjustment:

1.EC validation:

Use the EC meter instrument (EC meter) to determine nutrient concentration in water.

If the EC value is too low, add nutrients to the water. Or if the EC value is too high, reduce nutrient content.

2.pH check:

Use the pH meter tool or pH test strips (pH test paper) to determine the acidity-alkalinity level of water.

If the pH is too high, use water with a low pH, or pH modifiers such as phosphoric acid (phosphoric acid) or citric acid (lemon acid).

If the pH is too low, use water with a high pH, or a pH fining agent such as potassium hydroxide (potassium hydroxide).

Introduction:

EC and pH values should be checked weekly to enable vegetables to obtain appropriate levels of nutrients.

If pH or EC is abnormal, it may result in vegetables not growing well; or different diseases.

Maintaining EC and pH will help vegetables grow well and produce quality!

# Vegetables without chemicals # Lemon 8 Howtoo # Kelhydro # Grow vegetables # Hydroponics

2025/9/8 Edited to

... Read moreการดูแลรักษาค่า EC และ pH เป็นขั้นตอนสำคัญสำหรับเกษตรกรและผู้ปลูกผักที่ต้องการผลผลิตที่ดีและผักที่มีคุณภาพสูง การวัดค่า EC (Electrical Conductivity) ช่วยให้เราทราบความเข้มข้นของสารอาหารที่ละลายในน้ำ ซึ่งมีผลโดยตรงต่อการดูดซึมสารอาหารของผัก หากค่า EC ต่ำเกินไป แสดงว่าปริมาณสารอาหารในน้ำไม่เพียงพอ ผักอาจขาดสารอาหารและโตช้า ในทางกลับกันหากค่า EC สูงเกินไป อาจส่งผลให้ผักได้รับสารอาหารมากเกินไปจนเกิดความเครียดหรือสารพิษสะสมในเนื้อเยื่อผักได้ เช่นเดียวกับค่า pH ที่มีผลต่อความสามารถของผักในการดูดซึมสารอาหาร ค่า pH ที่สมดุลในช่วง 5.5 - 6.5 จะทำให้สารอาหาร เช่น ไนโตรเจน โปแตสเซียม ฟอสฟอรัส และแร่ธาตุต่าง ๆ ถูกดูดซึมได้อย่างมีประสิทธิภาพ ในกรณีที่น้ำมีความเป็นกรดหรือด่างเกินไป อาจทำให้สารอาหารบางชนิดใช้ไม่ได้หรือกลายเป็นพิษต่อพืชได้ นอกจากนี้ยังควรเลือกใช้เครื่องมือวัดค่าที่มีความแม่นยำ เช่น EC meter และ pH meter เพื่อให้ได้ค่าที่ถูกต้อง และทดลองตรวจสอบน้ำบ่อย ๆ อย่างน้อยสัปดาห์ละครั้ง เพื่อปรับสมดุลของสารอาหารและความเป็นกรด-ด่างให้เหมาะสมกับชนิดผักที่ปลูก การปรับแก้ค่า pH สามารถทำได้โดยใช้สารปรับ pH ที่มีความปลอดภัย เช่น กรดฟอสฟอริก (phosphoric acid) หรือกรดมะนาว (citric acid) ในกรณีที่ค่า pH สูงเกินไป และใช้โพแทสเซียมไฮดรอกไซด์ (potassium hydroxide) เพื่อเพิ่มค่า pH เมื่อมีระดับต่ำเกินไป การดูแลค่า EC และ pH ที่เหมาะสมไม่เพียงแต่ช่วยให้ผักได้รับสารอาหารครบถ้วน แต่ยังช่วยป้องกันการเกิดโรคและปัญหาอื่นๆ ที่เกี่ยวข้องกับการปลูกผัก และยังส่งผลต่อรสชาติ สีสัน รวมถึงคุณภาพโดยรวมของผักที่เราปลูกอีกด้วย ดังนั้น การเรียนรู้และเข้าใจวิธีตรวจเช็คและปรับค่า EC และ pH ในระบบการปลูกผักจึงเป็นองค์ความรู้ที่ช่วยให้การปลูกผักมีประสิทธิภาพ พร้อมทั้งลดการใช้สารเคมีที่ไม่จำเป็น ทำให้ผักที่ได้มีความปลอดภัยและส่งเสริมสุขภาพผู้บริโภคอย่างแท้จริง หากสนใจเทคนิคเพิ่มเติมเกี่ยวกับการปลูกผักไร้สารเคมีและไฮโดรโปรนิกส์ สามารถเข้าร่วมชุมชนหรือกลุ่มสนทนาใน Lemon8 เพื่อแลกเปลี่ยนประสบการณ์และเคล็ดลับต่าง ๆ ในการปฏิบัติได้อีกด้วย

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