关键词: 小麦 优势蘖 超高产 技术

Abstract:

In this paper, it was proposed After long-term study：①The concept, indice and suitable model of the superior tiller group in super-high yield wheat.②Index of nitrogen cumulation and strategy of fertilizer efficiency in super-high yield wheat.③Popuiation structure and quality index of super-high yield wheat. ④Basic soil nutrition index required by super-high yield wheat cultivation and optimized fertilization techniques. ⑤The super-high yield cultivation technique with the superior tiller as the core part, which includes three optimum methods, two promotion methods, one control method and moderate management. The optimum methods mean using high quality and super-high yield varieties, properly using superior tiller group and optimizing population structure quality. The two promotion methods mean promoting the strengthening of seedling before winter and promoting more and bigger ears and heavier grains. The one control method means controlling irrigation and fertilization. The moderate man- agement means strengthening seedling and preventing immature decline in late phase.

Key words: wheat, superior tiller , super-high yield ;technique