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Direct Seeding Methods in Tropics
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Water seeding
Seeds are sown in water-logged fields, primarily for rice. This method ensures rapid germination and initial growth.
Bed planting
Seeds are planted on raised beds, which allows for better water management. This method is suitable for tomatoes, peppers, and strawberries.
Check row planting
Seeds are planted at the intersections of a grid pattern, which allows for cultivation in two directions. Works well for maize, cotton, and sorghum.
Zero tillage sowing
Seeds are directly sown into the soil without any prior land preparation, which conserves soil moisture and structure. Suitable for wheat and soybeans.
Strip tillage
Tillage and seeding occur simultaneously in narrow strips with the rest of the field left undisturbed. This method is effective for soil moisture conservation in sorghum and millet.
Ridge planting
Seeds are sown on top of ridges formed in the soil. Suitable for potato, sweet potato, and yam in the tropics.
Drill seeding
Seeds are placed at a uniform depth in rows using a seed drill. Suitable for maize, soybeans, and wheat in areas with sufficient rainfall.
Mat nursery sowing
Seeds are sown in a pre-prepared mat nursery bed and later transplanted to the field. Ideal for rice cultivation under tropical conditions.
Furrow planting
Seeds are sown in the bottom of furrows created in the field, which is good for irrigation management. Works well for sugar cane and some cereal crops.
Broadcasting
Seeds are scattered evenly across the prepared soil surface, then lightly incorporated. Suitable for rice, millets, and some forage crops in the tropics.
Hill dropping
Seeds are dropped in clusters at regular intervals along the furrow. Commonly used for crops like beans, squash, and okra in the tropics.
Jab planter seeding
A jab planter is used to plant seeds at a consistent depth one by one. Commonly used for maize and beans in the tropics.
Solarization
Soil is covered with a transparent plastic sheet to increase temperature and kill soil pathogens before direct seeding. It's not a seeding method but a preparatory step. Can benefit nursery beds for most crops.
Precision seeding
Seeds are sown at precise depth and spacing using specialized planters. Ideal for vegetable crops and some root crops like beets in the tropics.
Dibbling
Seeds are dropped into holes or furrows made by a dibbler or stick. This method is effective for pigeon peas, cowpeas, and cassava.
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