Side deep fertilization of rice is an innovative development of machine transplanting technology. It can achieve accurate and efficient fertilization while transplanting, and improve fertilizer utilization efficiency. It is one of the main promotion technologies for fertilizer reduction and efficiency increase. The Guidance is formulated to accelerate the popularization and application of lateral deep fertilization technology for rice.
1¡¢ Technical overview
Side deep fertilization of rice is realized by installing side deep fertilization device on the rice transplanter. At the same time of transplanting, fertilizer is evenly and quantitatively applied to the position of 3-5cm and 4-6cm deep at the root side of the seedling, and covered in mud to avoid fertilizer drift and promote the nutrient absorption of the seedling root. The side deep fertilization of rice can give full play to the advantages of agricultural machinery and agronomy integration, and the simultaneous fertilization of transplanting seedlings can effectively improve the fertilizer utilization rate. While shortening the slow seedling stage, promoting root growth, and increasing rice yield, it can reduce the number of times of fertilization and fertilizer use, reduce the manual input and nutrient loss, and promote the reduction of fertilizer and efficiency and green high-quality agricultural development.
2¡¢ Technical points
Cultivate strong seedlings
According to the requirements of machine transplanting, standardized carpet soil bearing seedlings shall be selected. Generally, the leaf age of seedlings is 2-3.5 leaves. The seedling age is 20-40 days in the north and 15-25 days in the south. The seedling height is 10-20 cm. The seedlings should be solid, stable, elastic, green but not thick leaves, not drooping leaves, flat stem base, many fibrous roots, high degree of fullness, and free from pests and diseases. Prevent the seedlings from withering and lift, transport and transplant at the same time.
|
