叶面追肥对强筋小麦产量和品质的效应分析

摘要

为明确强筋小麦叶面不同追肥时期和次数的产量和品质效应,通过品种、喷洒时期的2因素随机区组试验,对叶面肥不同施用时期和施用次数的旗叶叶绿素含量、产量和品质进行分析.结果表明,冬前、拔节期喷洒较灌浆期喷洒利于叶绿素的提高,冬前+拔节期+灌浆期3次喷洒叶绿素含量最高.从产量来看,最佳喷施时期是小麦苗期和拔节期;冬前+拔节+灌浆3次喷洒,可显著提高产量.从品质来看,喷洒叶面肥对小麦品质提高具有一定作用,拔节期、抽穗期喷洒对品质的提高作用更强;拔节期、抽穗期、灌浆期多次喷洒虽然会提高产量,但对品质有负面效应.%To determine the yield and quality effects of applying period and times of foliar fertilizer of strong gluten wheat were studied. The chlorophyll content of flag leaves,yield and quality of grain were analyzed under different treatments by random experiment of two factors and spraying times. The results showed that the chlorophyll content of flag leave was in-creased when spraying foliar fertilizer before winter and at jointing stage. And the chlorophyll content of flag leaves reached a maximum when praying foliar fertilizer at three stages. From the yield perspective,the best time of spraying foliar fertilizer was seedling stage and jointing stage,and spraying three times before winter,at the jointing and filling stage could improve the yield of wheat significantly. From the quality perspective,the quality of spraying foliar fertilizer could improve the quality of wheat,especially at jointing stage and heading stage. Spraying foliar fertilizer at jointing,heading and filling stage could in-crease the yield, however,it could debase the quality.