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栽培模式、施氮量对旱作春玉米农田 矿质氮和产量的影响
张 悦1; 岳善超2; 李 婷1; 李世清1,2
2016
Source Publication干 旱 地 区 农 业 研 究
Volume34Issue:1Pages:99-107
Abstract

 研究了旱地不同栽培模式(全膜双垄沟和传统种植模式)和施氮量(0、170、200、230 kg·hm
-2 )对春玉
米生长期间矿质氮和产量的影响。结果表明:不同处理条件下,硝态氮主要分布在 0 ~40 cm 土层,施氮量越高土壤
中硝态氮的含量也就越高,随土层深度增加硝态氮含量降低;不同栽培模式对土壤中硝态氮的分布有明显影响,全膜
双垄沟模式有助于玉米植株高效吸收利用土壤中的氮素,施氮量为 0、170、200、230 kg·hm
-2 处理的吸氮量分别提高
了 89. 3%、51. 1%、66. 6%和 102. 8%,所有处理的吸氮量平均提高 77. 4%,从而减少土壤硝态氮的残留,而传统种植
模式的玉米植株利用土壤氮素效率低,易造成硝态氮残留在土壤中,当遇到强降雨时硝态氮的淋洗现象严重,将硝态
氮迁至作物无法吸收利用的土壤深度,造成资源浪费;而铵态氮在土壤中不易迁移,施氮量、栽培模式及玉米不同生
育时期对铵态氮在土壤剖面中的分布几乎没有影响;玉米的植株吸氮量与玉米产量成正比,施氮处理植株吸氮量与
产量显著高于不施氮处理,但是不同施氮处理间的差异不显著。全膜双垄沟模式下春玉米的最佳施氮量为 200 kg·
hm
-2 ,而传统种植模式下的最佳施氮量为 170 kg·hm -2 ,且在干旱地区宜采用全膜双垄沟栽培模式种植春玉米。

Other Abstract

 A field experiment was carried out to study the effects of different cultivation patterns (the whole film
double furrow mode and traditional planting pattern) and nitrogen application rate (0,170,200,230 kg·hm
-2 ) on
the soilmineral nitrogen and grain yield of spring maize. The results showed that in the 0 ~200 cm soil profile,soil
nitrate content was decreased as the depth of soil layers increased and the soil nitrate was mainly distributed in the 0
~40 cm soil profile. With the increase of nitrogen application,soil nitrate content became increased. Different culti-
vation patterns had significant influences on the distribution of nitrate in soil. Compared to the traditional planting
pattern,the whole film double furrow planting pattern reduced the soil nitrate due to the ability improvement of the
plant N uptake from the soil. The N uptake of treatment N0,N170,N200,N230 were increased by 89. 3%,51.
1%,66. 6% and 102. 8%,with an average of 77. 4%. In contrast to the soil nitrate,the ammonium in the soil was
changed very slightly and was not affected by the amount of nitrogen application,cultivation patterns or different
growth stages of spring maize. Compared to the traditional planting pattern,the whole film double furrow planting pat-
tern could significantly improve grain yield and plant N uptake. In summary,the optimum nitrogen application rate of  the whole film double furrow mode was 200 kg·hm
-2 ,while the traditional planting pattern was 170 kg·hm -2 . In
conclusion,the whole film double furrow mode was more suitable for spring maize in dryland regions.

Keyword栽培模式 施氮量 硝态氮 产量 氮肥表观损失 氮肥利用率
Indexed By中文核心期刊要目总览
Language中文
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8676
Collection水保所知识产出(1956---)
Affiliation1.西北农林科技大学资源环境学院,陕西 杨凌 712100
2.西北农林科技大学,黄土高原土壤侵蚀与旱地农业国家重点实验室,陕西 杨凌 712100
Recommended Citation
GB/T 7714
张 悦,岳善超,李 婷,等. 栽培模式、施氮量对旱作春玉米农田 矿质氮和产量的影响[J]. 干 旱 地 区 农 业 研 究,2016,34(1):99-107.
APA 张 悦,岳善超,李 婷,&李世清.(2016).栽培模式、施氮量对旱作春玉米农田 矿质氮和产量的影响.干 旱 地 区 农 业 研 究,34(1),99-107.
MLA 张 悦,et al."栽培模式、施氮量对旱作春玉米农田 矿质氮和产量的影响".干 旱 地 区 农 业 研 究 34.1(2016):99-107.
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