不同播期播量对盐麦1号生长和产量的影响  

Effects of Sowing Date and Sowing Density on the Growth and Yield of the Wheat Variety Yanmai No.1

作　　者：赵呈明 马骏[1] 李进永[1] 费新茹 郭红[1] 许业[1] 李玲 ZHAO Cheng-ming;MA Jun;LI Jin-yong;FEI Xin-ru;GUO Hong;XU Ye;LI Ling(Yandu Institute of Agricultural Sciences of Yancheng City,Yancheng 224011,China)

机构地区：[1]盐城市盐都区农业科学研究所,江苏盐城224011

出　　处：《大麦与谷类科学》2022年第3期40-43,共4页Barley and Cereal Sciences

基　　金：江苏(盐都)现代农业(稻麦)科技综合示范基地[JATS(2021)235]。

摘　　要：本文研究了不同播期和播量对盐麦1号生长和产量的影响。结果表明:盐麦1号在不同播期下均能够正常抽穗成熟。随着播期的延迟,出苗期、抽穗期、成熟期均有不同程度延迟,全生育期减少。在一定播期内,播期延迟可通过提高盐麦1号的播量增加基本苗。但在迟播和过迟播条件下,增加播种量并不能有效增加基本苗,适期略迟播种增加产量效果不显著。迟播和过迟播易受低温影响而出苗不好,导致小麦群体数量不足,引起减产。在盐城地区实际生产中,盐麦1号应在11月2日左右适期播种,基本苗控制在17万~19万株/667 m^(2),条件允许的情况下可以适当延迟播期,减轻低温冻害影响,保证后期产量。The current research investigated the effects of different sowing dates and sowing densities on the growth and yield of the wheat variety Yanmai No.1. The results showed that Yanmai No.1 plants headed and matured normally under different sowing dates.With the delay of sowing date, the plants showed retardation of emergence, heading and maturity to varying degrees, and the whole growth period was shortened. Under the conditions of slightly delayed sowing dates within a certain period of time, the basic seedling density of Yanmai No.1 rose with increasing sowing density;however, under the conditions of late or too late sowing dates, elevating the seeding density did not effectively increase the basic seedling density. Slightly late sowing at a right time improved yield, but at an insignificant level. Under the conditions of late sowing and too late sowing, wheat growth was susceptible to low temperature, which inhibited seedling emergence, resulting in reductions in wheat population size and yield. Hence, in the actual wheat production in Yancheng area, Yanmai No.1 should be sown at a suitable time around November 2, and the basic seedling density should be controlled at 170 000 to 190 000 seedlings/667 m^(2). If possible, the sowing date can be slightly delayed to alleviate the damages caused by low temperature and frost, thus securing a high yield at harvest.

关 键 词：播期 盐麦1号 生长 产量 

分 类 号：S512.1[农业科学—作物学]