分期播种对豫北不同小麦品种产量因素结构的影响分析

为了确定小麦适宜播种期，为豫北大力发展优质小麦生产提供科技支撑和理论依据。通过采用EXCEL等软件和其他数理统计方法，对豫北不同优质小麦品种不同播期的产量结构进行分析研究。结果表明：‘河北-8901’品种的不同的播期处理对它最后产量的影响度相对较小，而‘郑麦-9405’和‘郑麦-9023’不同的播期则表现出了较大的波动。通过试验研究得出：以小麦-玉米轮作方式的地段最好在适时播种的条件下多采用半冬性品种，而对于部分以小麦-旱稻轮作方式的地段播种春性品种为宜，且应在10月15—25日内完成播种。

Analysis of Yield Formation of High Quality Wheat in Different Seeding Time in Northern Henan

In order to determine the suitable sowing of wheat, and technology to support and theoretical basis for the Yubei vigorously the development of high quality wheat production. Analysis using EXCEL software and other mathematical statistical methods, the Yubei different quality wheat varieties yield structure of the different sowing dates. The results indicated that, the variety rule of ‘Hebei-8901’ was the steadiest, which was to say that the variable sowing-time had no much effect on its yield in the last. But the breeds of ‘Zhengmai-9405’ and ‘Zhengmai-9023’ had showed remarkable differences. Experimental study was drawn: sowed earlier and wheat had more time growing stronger, and more quantify of heat accumulated, before the time of winter coming they had the much reasonable colony. From the result of the trial, we had known that, the most suitable sowing-time of wheat with semi-winter feature was in Oct. 5th to 15th like ‘Zhengmai-9023’ with feebleness-spring feature should be postponed 5-7 days accordingly.