摘要
为明确设施辣椒最适宜的氮肥用量,通过设置不同氮肥用量下的辣椒田间小区试验,分析不同用量氮肥N0(0 kg/hm^(2))、N1(120 kg/hm^(2))、N2(180 kg/hm^(2))、N3(240 kg/hm^(2))、N4(300 kg/hm^(2))、N5(360 kg/hm^(2))对辣椒产量、氮磷钾养分含量及品质(维生素C、硝酸盐和还原糖)的影响。结果表明,添加氮肥可显著提高辣椒产量,增产率达26.05%~122.81%,以N4处理产量最高。施氮显著提高辣椒全氮含量,以N2处理最高,氮肥过量与不足均不利于提高辣椒氮素含量。施氮量为N2处理时辣椒维生素C含量、可溶性糖含量最高,硝酸盐含量最低,氮肥过量与不足均不利于提高辣椒品质。综合辣椒产量、养分含量及品质结果,该试验条件下,氮肥适宜用量为180~300 kg/hm^(2)。
To study the suitable nitrogen fertilizer application levels for pepper,using field experiment,effects of N0(no nitrogen fertilizer),N1(120 kg N/hm^(2)),N2(180 kg N/hm^(2)),N3(240 kg N/hm^(2)),N4(300 kg N/hm^(2))and N5(360 kg N/hm^(2))on pepper yield,nutrient and quality were studied.The results indicated that nitrogen fertilizer could increase pepper yield.The yield was increased by 26.05%to 122.81%,and the N4 was the highest.There were obvious effects of nitrogen levels on pepper nitrogen content,and the N2 was the highest.Excessive and deficient nitrogen fertilizer was not conducive to increase nitrogen content in pepper.The vitamin C content and soluble sugar content of pepper were the highest and the nitrate content was the lowest under the N2 treatment.Based on the results of yield,nutrient content and quality of pepper,the suitable nitrogen application rate was 180-300 kg/hm^(2).
作者
郭标
GUO Biao(Funan Agricultural Technology Promotion Center,Funan,Anhui 236300)
出处
《安徽农业科学》
CAS
2022年第1期158-159,162,共3页
Journal of Anhui Agricultural Sciences
关键词
氮肥用量
辣椒
产量
养分
品质
Nitrogen levels
Pepper
Yield
Nutrient
Quality
