栽培因素对弱筋小麦绵阳30号品质的影响

Effect of Cultivation Factors on Quality of the Weak-gluten Wheat Variety Mianyang 30

为充分发挥弱筋小麦绵阳30号的高产、优质潜力,为大面积推广应用提供参考,特进行了两年的栽培技术研究。研究结果表明:①影响绵阳30号品质的主要因素为:施氮量>施钾量>密度,施磷量与追肥时期对品质影响较小。②绵阳30号的优质高效配套栽培技术模式为:播种期为10月20日至11月1日,密度为195.6～205.8万/hm2基本苗,纯氮用量81.9～88.2kg/hm2,P2O5用量61.5～67.5kg/hm2,K2O用量151.5～164.25kg/hm2,氮肥追肥时期以拔节期为宜(氮肥基追比为7:3)。

In order to provide theoretical reference for the farm production, the effect of cultivation factors on the quality of the weak-gluten and high-yield wheat variety Mianyang 30 were studied in the period of 2002～2004.The results showed that, ①the main factors that determined the quality were :nitrogen fertilizer>potash fertilizer>density,phosphate fertilizer and the stage of topdressing nitrogen had little effect on the quality. ②The suitable cultivation model were: the suitable sowing dates were from 20th Oct. to 1st Nov. ,the proper ranges of N,P2O5 and K2O applied and basic seedling should be 81.9～88.2 N kg/hm2,61.5～67.5 P2O5 kg/hm2,151.5～164.25K2O kg/hm2 and 195.6×104～205.8×104 plants/hm2 in Mianyang ,and the suitable stage of topdressing nitrogen were jointing stage when the basic application to topdressing of nitrogen was 7:3.