Plough Frog

Animal Drawn Plough Frog

In a plough, the term “frog” refers to the triangular area located near the bottom of the ploughshare where the plough turns into the soil. The frog helps to guide the plough into the soil and ensure that it cuts and turns the soil in a consistent and controlled manner. The shape and angle of the frog can be adjusted to control the depth and width of the furrow created by the plough.

Features of Plough Frog

The features of the frog in a plough can vary based on regional practices, plough designs, and the specific requirements of the soil and cropping system. Here are some common features associated with the frog:


The frog is typically triangular or wedge-shaped, tapering to a point at the tip. The specific shape can vary, with some frogs having a more elongated or pointed design, while others have a broader and more rounded form. The shape is designed to facilitate efficient cutting and turning of the soil.

Cutting Edge

The leading edge of the frog is sharp and robust to effectively cut through the soil. It should be designed to minimize resistance and allow smooth penetration into the ground.

Thickness and Width

The frog has a specific thickness and width that determine its strength and ability to withstand the forces encountered during ploughing. The dimensions of the frog can vary depending on factors such as soil conditions and the desired depth and width of the furrow.


Frogs are typically made of strong and durable materials, such as hardened steel or iron, to withstand the wear and impact of ploughing. The choice of material depends on factors like soil hardness, abrasiveness, and availability of resources.

Mounting Mechanism

The frog is securely attached to the ploughshare, either through welding, bolting, or other suitable fastening methods. The mounting mechanism ensures that the frog remains in place during ploughing and maintains its alignment and stability.

Surface Treatment

To enhance the durability and performance of the frog, it may undergo surface treatments such as hardening, tempering, or coating. These treatments improve the resistance to wear, corrosion, and other forms of deterioration.


The frog needs to be compatible with the overall design and dimensions of the ploughshare. It should fit snugly and align properly with the rest of the plough components for efficient and effective ploughing.

Size of Plough Frog

The size of the frog in a plough can vary depending on several factors, including regional practices, soil conditions, and the specific requirements of the ploughing system. The dimensions of the frog are typically determined by the desired depth and width of the furrow, as well as the type of soil being worked.

Generally, the size of the frog in a plough can range from a few centimeters to several inches in length. The width and thickness of the frog also vary, typically correlating with the intended depth and width of the furrow. It’s important to ensure that the size of the frog is appropriate for the ploughing system and the specific soil conditions in order to achieve efficient and effective ploughing.

The dimensions of the frog can be influenced by factors such as the size and strength of the oxen or draft animals, the type of crops being cultivated, and the prevailing soil conditions in the region. It’s common for local plough manufacturers or experienced farmers to determine the appropriate size of the frog based on their knowledge and experience with the local ploughing practices.

Use of Plough Frog

In the context of a plough, the term “frog” is commonly used to refer to a specific part of the ploughshare or blade. The frog is the triangular or wedge-shaped portion of the ploughshare that is responsible for cutting and turning the soil during ploughing.

The primary use of the frog in a plough is to penetrate the soil and create a furrow. As the plough is pulled through the field, the frog cuts into the soil and lifts and turns it over, allowing for the burial of weeds, incorporation of organic matter, and preparation of the soil for planting.

The design and shape of the frog can vary depending on regional practices, soil conditions, and ploughing techniques. It is typically crafted to effectively cut through the soil with minimal resistance, ensuring efficient ploughing and furrow formation.

The proper functioning and sharpness of the frog are essential for achieving optimal ploughing results. Regular maintenance, such as sharpening or replacing the frog as needed, helps ensure its effectiveness and longevity.

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