Does rice planting need to be topdressed? Shandong comprehensively explored rice-free topdressing technology. On December 10, the reporter learned from the technical exchange and annual summary meeting of Shandong Rice Industry System Innovation Team (referred to as Shandong Rice Innovation Team) held in Taian, Shandong Province. Shandong is fully exploring rice-free topdressing. Technology, and accelerate the construction of rice industry innovation system around genetic breeding, cultivation, soil fertilizer, plant protection, agricultural machinery and other aspects.
At present, the area of ​​direct seed rice in Shandong is growing at a faster rate, but the supporting cultivation and fertilizer technologies are backward. In view of the main problems in rice production, such as low fertilizer utilization rate and serious non-point source pollution caused by nutrient loss, Shandong has demonstrated and promoted rice once-controlled nitrogen fertilizer application, comprehensive prevention and control technology of rice pests and diseases, and application of boron, zinc and silicon fertilizers in rice. , greatly improving rice production, saving time and labor, reducing non-point source pollution, direct economic and social benefits are very significant.
In view of the low content of soil organic matter and available phosphorus in coastal saline-alkali land, new biochar materials have been prepared from rice straw, and high-yield and high-efficiency cultivation techniques for rice in saline-alkali soil have been developed to improve the utilization efficiency of phosphorus in saline-alkali soil. It can also be combined with organic fertilizer and phosphate fertilizer, according to carbon and phosphorus. The proportion is appropriately invested in nutrients, thereby improving resource utilization efficiency and rice yield.
In the future, Shandong will increase its demonstration and promotion efforts, continue to improve the nutrient release characteristics of controlled-release nitrogen fertilizers and special fertilizer formulas, meet the needs of rice-cultivated varieties in different regions, and comprehensively explore rice-free topdressing and its light and simplified application techniques.
The conference was hosted by the Rice Research Institute of Shandong Province, the School of Resources and Environment of Shandong Agricultural University, and the National Engineering Laboratory for the Effective Utilization of Soil and Fertilizer Resources. The Shandong Rice Innovation Team signed a strategic cooperation agreement with Shandong Agricultural University Fertilizer Industry. All-round cooperation in plant protection and personnel training.
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