不同施肥量和种植密度对桂青贮一号玉米生长的影响

【目的】摸清桂青贮一号玉米品种的适宜种植密度和施肥量,旨在为桂青贮一号玉米高产高效栽培技术提供科学依据。【方法】采用肥料为主区、种植密度为副区的裂区设计,进行不同施肥量和种植密度试验试验,分小区收获并考种。【结果】A4处理（375.0kg/ha复合肥＋尿素489.1kg/ha＋钙镁磷肥441.2kg/ha＋氯化钾375.0kg/ha）的平均产量最高,为26623.5kg/ha,极显著高于其他处理;B4处理（69000株/ha）的平均产量最高,为26058.5kg/ha;相同施肥水平下,种植密度在一定范围内,桂青贮一号玉米产量随种植密度的增加而增高,随后又呈下降趋势;相同种植密度条件下,施肥水平...

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Published in南方农业学报 Vol. 42; no. 6; pp. 642 - 644
Main Author 陈桂兰 阳康春 黄革文 蒙月群 张述宽 周颀 覃娇燕 刘大海 蒋业钊
Format Journal Article
LanguageChinese
Published 广西农业科学院桂中分院/柳州市农业科学研究所,广西柳州,545003%广西农业科学院,南宁,530007 2011
Subjects
产量
密度
施肥量
桂青贮一号
青贮玉米
施肥量
产量
密度
桂青贮一号
青贮玉米
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ISSN2095-1191
DOI10.3969/j.issn.2095-1191.2011.06.019

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Summary:【目的】摸清桂青贮一号玉米品种的适宜种植密度和施肥量,旨在为桂青贮一号玉米高产高效栽培技术提供科学依据。【方法】采用肥料为主区、种植密度为副区的裂区设计,进行不同施肥量和种植密度试验试验,分小区收获并考种。【结果】A4处理（375.0kg/ha复合肥＋尿素489.1kg/ha＋钙镁磷肥441.2kg/ha＋氯化钾375.0kg/ha）的平均产量最高,为26623.5kg/ha,极显著高于其他处理;B4处理（69000株/ha）的平均产量最高,为26058.5kg/ha;相同施肥水平下,种植密度在一定范围内,桂青贮一号玉米产量随种植密度的增加而增高,随后又呈下降趋势;相同种植密度条件下,施肥水平在一定范围内时,桂青贮一号玉米的产量随着肥料施用量的增加而增加,随后又呈下降趋势。【结论】桂青贮一号玉米种植密度度为69000株/ha,施肥量为每公顷施用375.0kg复合肥作底肥,追肥每公顷施尿素391.3~489.1kg＋钙镁磷肥352.9~441.2kg＋氯化钾300.0~375.0kg时能获得较高产量。
Bibliography:45-1381/S
[Objective]The objective of the present study was to find out the proper planting density and rate of fertilizer application for silage maize variety Guiqingzhu 1 in order to develop its highly-efficient cultivation technique. [Method]The experiment was conducted in split plot design with three replicates with fertilizer application treatments in plots and planting density treatments in subplots. Agronomic traits of Guiqingzhu 1 were investigated and yield per plot were determined after harvest. [Result]Amongst the fertilizer treatments, the plants treated with A4 （375.0 kg/ha compound fertilizer＋489.1 kg/ha urea＋441.2 kg/ha calcium magnesium phosphate＋375.0 kg/ha potassium chloride） showed the highest average yield （26623.5 kg/ha）, which was significantly higher than the other treatments. While amongst the planting density treatments, the highest average yield （26058.5 kg/ha） was found in B4 treatment （69000 plants/ha）. Same trends of an initial increase followed by a decrease in average yield were
ISSN:2095-1191
DOI:10.3969/j.issn.2095-1191.2011.06.019