【摘要】 通过最优回归设计试验得出,优质小麦产量品质同步增长优化施肥决策为:高产田在底施P₂O₅150kg/hm²的基础上,施纯氮204.5～259.5kg/hm²,K₂O117.41～127.6kg/hm²,其中70％作底肥,其余30％返青前后追施。中产田在底施P₂O₅120kg/hm²的基础上,施纯N177.85～192.92kg/hm²,K₂O110.84～131.95kg/hm²,其中70％底施,30％于返青至拔节期施入。更多还原

【Abstract】 From the optimum regressive experiments,the best solutions to realize the synchronous growth of yield and quality of high-grade wheat are drawn:for the high-yield fields, besides 150 kg/hm2 of P2O5 as base fertilizer, 204. 5~259. 5kg/hm2 of pure nitrogenous fertilizer, and 117. 41~127. 6kg/hm2 of K20 need to be applied, of which 70 percent as base fertilizer and 30 percent are applied shortly before or after the wheat turns green after winter; for the medium-yield fields, the corresponding numbers are 120 kg/hm2 of P2O5, 177. 85 - 192. 92kg/hm2 of pure nitrogenous fertilizer, and 110. 84~131. 95kg/hm2 of K2O .更多还原