Page 4 - ศึกษาอัตราส่วนผสมระหว่างปูนมาร์ล กรดซิลิคอนและถ่านชีวภาพเพื่อปั้นเม็ดเพื่อใช้ปรับปรุงบำรุงดินในพื้นที่ดินเปรี้ยวจัด Study the mixture ratio between marl, silicon and biochar to form pellets for increasing plant growth in acid sulfate soils

ห้องสมุดกรมพัฒนาที่ดิน

Study the mixture ratio between marl, silicon and biochar to form pellets for
increasing plant growth in acid sulfate soils

Bunjirtluk Jintaridth Sakol Panmoeng Sarannop Intasaen

Nisuda Thongkumpan and Supranee Tonjan

Abstract

The mixture ratio between marl, silicon and biochar to form pellets for

increasing plant growth in acid sulfate soils was studied. The objectives were soil

improvement, and increasing yield of sweet corn. The location was conducted in Rangsit

series (soil group 11), Patumthanee province between 2019-2020. Randomized Complete

Block Design (RCB) was applied for 4 replications and 7 treatments. (T ) Treatments were
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control plots, (T ) 1872 kilograms per rai of marl application, (T )100 kilograms per rai of
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silicon application, (T ) 2 tons per rai of biochar application, (T ) the mixture ratio
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between marl, silicon and biochar to form pellets 1 : 1 : 1, (T ) the mixture ratio between
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marl, silicon and biochar to form pellets 1: 2: 1, (T ) the mixture ratio between marl,
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silicon and biochar to form pellets 1 : 1 : 2. After experiment, results showed that soil

properties had changed. With applying marl, silicon and biochar, the soil had the pH

value, %OM, avail. P, extr. K, extr. Ca, and extr. Mg in the soil increased, respectively. Also

at different the mixture ratio between marl, silicon and biochar to form pellets 1: 2: 1 (T )
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had a tendency to increase productivity of sweet corn yield, length and width of leaf, the

height of sweet corn. The mixture ratio between marl, silicon and biochar to form pellets
1: 1: 2 (T ) gave the highest weight of ears of corn (grams). However, it was not statistical
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different to the mixture ratio between marl, silicon and biochar to form pellets 1 : 2 : 1.
Control treatment (T1) had the lowest of sweet corn yield, length and width of leaf, the

height of sweet corn and the weight of ears of corn (grams).

Key words: marl, silicon, biochar, acid sulfate soils, sweet corn

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