密度与肥料配比对小麦宁春52号产量及其构成因子的影响
Effects of Density and Fertilizer Ratio on Yield and Its Component Factors of Wheat Ningchun 52
陶媛 1李前荣 1陈小龙 1陈荣2
作者信息
- 1. 永宁县农作物种子育繁所,宁夏永宁750100
- 2. 银川市工业信息局,宁夏银川750000
- 折叠
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/hm2)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/hm2)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/hm2、磷酸二铵255 kg/hm2,钾肥135 kg/hm2)叶面积系数整体较高;分蘖成穗率在A2(495万株/hm2)下整体最高,在B3施肥水平(施尿素150 kg/hm2、磷酸二铵300 kg/hm2,钾肥135 kg/hm2)处理下相对最高;较高播种密度A3(540万株/hm2)、较低的施肥水平B1(施尿素150 kg/hm2、磷酸二铵255 kg/hm2,钾肥0 kg/hm2)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.
Abstract
[Objective]The aim is to screen situable density and fertilizer ratio for wheat planting.[Method]three kinds of planting density and five kinds of fertilizer ratio were set, effects of density and fertilizer ratio on wheat Ningchun 52 was studied.[ Result] Leaf area index of the higher planting density (540 ×104 plants per hectare) was the highest between jointing stage and tillering stage , but in flagging stage, the highest leaf index was in the lower planting density (450 ×104 plants per hectare) and a higher fertilizer ratio(B4:N225 kg/hm2,P2O5225 kg/hm2,K2O 135 kg/hm2) can produce a higher leaf area index in every growth stage;The highest tiller formation rate was occurred in A2(495 ×104 plants per hectare) or B3(N 150 kg/hm2,P2O5300 kg/hm2, K2O 135 kg/hm2) ;A higher plangting density A3(540 ×104 plants per hectare) and a lower fertilizer ratio B1(N 150 kg/hm2,P2O5255 kg/hm2, K2O 0 kg/hm2) would be suitable for a higher yield demand for the wheat and a lower fertilization for high fertility soild.[Conclusion]The research can provide guide for sowing and fertilizing of wheat.
关键词
种植密度/施肥量/小麦/宁春52号Key words
Plangting density/Fertilization/Wheat/Ningchun 52引用本文复制引用
出版年
2017
国家科技期刊平台
NSTL
维普
万方数据