适合江淮丘陵地区种植的粳稻品种的筛选及高产栽培研究

Screening of Japonica Rice Varieties and Research on High-yield Cultivation in Jianghuai Hilly Area

[目的]筛选和研究适合江淮丘陵地区种植的粳稻品种和高产栽培技术。[方法]选取生产上应用较多的粳稻品种在江淮丘陵地区种植,通过2年的试验调查各品种的生育特性和产量特性,从而筛选适合该地区种植的粳稻品种。利用重点品种设计不同的氮肥运筹试验,调查氮肥应用对粳稻品种的影响,并进行高产栽培试验。[结果]宁粳7号表现了较好的稳产性,适合该地区种植,优质米南粳9108表现也较好。施用氮肥的粳稻产量显著比未施氮肥的高,但减少氮肥使用量,产量并没有下降,同时氮肥前促有利于产量性状的形成。[结论]该研究对推动当地农业产业结构优化调整,提高当地农民收入具有现实意义。

[Objective] To screen Japonica rice varieties suitable to be planted in Jianghuai hilly region,and to study the high-yield cultivation techniques.[Method] Japonica rice varieties which were widely used in production were selected and planted in the Jianghuai hilly area for two years.The fertility and yield characteristics of each variety were investigated to screen the varieties suitable to be planted in in this area.At the same time,different nitrogen fertilizer operation experiments were designed to investigate the Effects of nitrogen fertilizer application on Japonica rice varieties.High yield cultivation experimenTSwere carried out using the selected varieties and cultivation methods.[Result] Ningjing 7 had good stable yield characteristics and was suitable to be planted in this area.The high-quality Nanjing 9108 also showed good performance.The yield of Japonica rice with nitrogen fertilizer was significantly higher than that without nitrogen fertilizer,but the yield did not decrease with the reduction of nitrogen fertilizer application.[Conclusion] This research has practical significance to promote the agricultural industrial structure adjustment and optimization,and to enhance the income of local farmers.