摘要
[目的]为小麦种植筛选适宜的种植密度和肥料配比。[方法]设置3种种植密度与5个肥料配比施用水平,研究种植密度和肥料配比对小麦宁春52号的影响。[结果]分蘖期与拔节期,相对较高的播种密度A3(540万株/hm^2)叶面积系数最高,而在挑旗期,相对较低的播种密度A1(450万株/hm^2)叶面积系数整体较高,在各生育期相对较高的施肥水平(施尿素225 kg/hm^2、磷酸二铵255 kg/hm^2,钾肥135 kg/hm^2)叶面积系数整体较高;分蘖成穗率在A2(495万株/hm^2)下整体最高,在B3施肥水平(施尿素150 kg/hm^2、磷酸二铵300 kg/hm^2,钾肥135 kg/hm^2)处理下相对最高;较高播种密度A3(540万株/hm^2)、较低的施肥水平B1(施尿素150 kg/hm^2、磷酸二铵255 kg/hm^2,钾肥0 kg/hm^2)既适合该品种的高产要求,也符合高肥力土壤的低施肥需要。[结论]该研究可为小麦的播种与施肥提供指导。
[ Objective ] The aim is to screen situable density and fertilizer ratio for wheat plantin/. [ Method ] three kinds of plantin/ density and five kinds of fertilizer ratio were set, effects of density and fertilizer ratio on wheat Nin/chun 52 was studied. [ Result] Leaf area index of the hiiher plantin/ density （540 × 104 plants per hectare） was the hi/hest between jointin/ sta/e and tillerin/ sta/e ,but in ilag/in/ s ta /e ,the hi/hestla index was in the lower plantin/ density （450 × 10 4 plants per hectare） and a hi/her feeilizer ratio（B4 N225 k / h m 2 ,P 2O5 2 5 k/Z hm2 ,K2O135 k/hm2） can produce a hi/her leaf area index in ever /rowth sta/e; The hi/hest tiller formation rate was occurred in A2 （495 × 1per hectare） or B3 （N150 k/hm 2 ,P 2O5 300 k /h m2 , K2O 1 5 k /h m2） ; A hi/her plan / in / density A3 （540 × 104 plants per hectarlower ferilizer ratio Bj （N 150 k/hm 2 ,P 2O5 2 5 k / h m2, K2O 0 k / h m 2） would be suitable for a hi/heferilization for high ferility soild. [ Conclusion] The research can provide /uide for sowin/ and feriliz
出处
《安徽农业科学》
CAS
2017年第36期9-10,13,共3页
Journal of Anhui Agricultural Sciences
基金
宁夏农业育种专项(2013NYYZ02)
关键词
种植密度
施肥量
小麦
宁春52号
Plan/tin/ density Ferilization
Wheat
Ningchun 52
