【摘要】 为在推广过程中,更好的发挥春小麦‘津强7号’的优质、强筋、高产特性,为优质、强筋小麦生产提供技术支撑,通过对拔节期和抽穗期不同的氮肥配比,对小麦‘津强7号’的株高、穗长、小穗数、穗粒数、千粒重、穗数、产量进行测定,从而明确小麦‘津强7号’的最佳栽培模式。研究结果表明,‘津强7号’的产量、穗长、小穗数均比较稳定,在不同密度和氮肥施用方式上未出现显著变化;其株高、穗数受到了种植密度的影响,而千粒重、穗粒数受到了种植密度和氮肥使用方式的影响。低密度下千粒重和穗粒数显著增加,拔节期施用氮肥75 kg/hm~2,抽穗期施用150 kg/hm~2,植株较矮。450万苗/hm~2的种植密度、拔节期一次性施氮肥150 kg/hm~2,是‘津强7号’最佳栽培模式。更多还原

【Abstract】 The aims are to popularizing the spring wheat variety‘Jinqiang 7’with high quality, strong gluten and high yield, and to provide technical support for the production of high-quality and strong-gluten wheat.The height, spike length, spikelet number, grain number per spike, 1000-seed weight, spike number and yield were detected under different N fertilizer proportions at jointing stage and heading stage. And then the optimum planting model of‘Jinqiang 7’was obtained. The results showed that the yield, the spike length and the spikelet number of‘Jinqiang 7’were relatively stable, and there was no significant change with different densities and N fertilizer applications. The plant height and spike number of‘Jinqiang 7’was affected by planting densities, while 1000-grain weight and grain number per spike were affected by both planting densities and N fertilizer application mode. 1000-grain weight and grain number per spike increased significantly under low planting density. Under N fertilizer of 75 kg/hm~2 at jointing stage, and 150 kg/hm~2 at heading stage, the height of‘Jinqiang 7’was lower than that in other treatments. The planting density of 4.5 million seedlings/hm~2 and N fertilizer of 150 kg/hm~2 applied once at the jointing stage is the best cultivation model of‘Jinqiang 7’.更多还原