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Summer corn paste planting technical points
Corn stalk planting refers to the practice of sowing summer corn directly onto the remaining wheat stalks after harvest, without the need for traditional land preparation or tilling. This technique, known as "corn sticking seeding," allows farmers to save time and labor while promoting more efficient and mechanized agricultural practices. The method primarily involves several key steps:
First, early sowing is crucial. Since summer corn has a relatively short growing season, it's essential to plant as early as possible. Farmers should use early or mid-season hybrid varieties that can mature quickly and adapt well to local conditions.
Second, variety selection plays a vital role in ensuring high yields. It is recommended to choose high-yield hybrid seeds with strong resistance to diseases and environmental stress. Varieties like Zhengdan 958 and Qidan 20 are commonly used due to their wide adaptability and good performance under various growing conditions.
Third, proper planting density is important for maximizing yield. The number of plants per mu (approximately 667 square meters) should be adjusted based on the specific variety, soil quality, and farming methods. Generally, compact-type corn varieties perform better in terms of light exposure and growth efficiency. In fertile soils with good management, it is advisable to plant no fewer than 4,500 to 5,000 plants per mu.
Fourth, returning straw to the field helps improve soil fertility and structure. Before planting corn, the wheat straw should be collected and spread evenly across the field. Where available, large combine harvesters equipped with straw chopping and spreading devices can be used to ensure effective straw incorporation into the soil.
Fifth, direct sowing using specialized corn seeders is an efficient way to plant corn directly into the field after wheat harvesting and straw coverage. The seeding rate is typically between 2 to 2.5 kg per mu, with the sowing depth controlled at 3 to 5 cm. Fertilization is usually applied at a depth of 8 to 10 cm to ensure optimal nutrient uptake by the plants.
This innovative approach not only reduces the workload for farmers but also promotes sustainable agricultural practices by making better use of existing crop residues and reducing the need for intensive land preparation. As more farmers adopt this technique, it could significantly contribute to improving productivity and resource efficiency in summer corn cultivation.