摘要
采用大田试验,以秦烟96为材料,设置了5个供磷水平,研究了不同磷肥水平对烤烟烟叶光合特性、养分吸收(氮、磷、钾)以及农艺性状和经济性状的影响。结果表明,施磷水平在0~135.00 kg·hm^(-2)范围内,随磷肥用量增加,各生育时期烟叶中氮、磷、钾含量和光合性能逐渐增强,产质量提高,影响程度因生育时期而异;135.0~168.75 kg·hm^(-2)范围内,所有测定指标无显著变化或降低。综合分析,在宝鸡市陇县特定气候和土壤生态、栽培等条件下,磷用量以135.0 kg·hm^(-2)为宜。在该施磷水平下,可改善烟叶营养,提高光合性能和烟叶产质量,增加经济效益。
With Qinyan 96 as materials field experiments were carried to study the effect of different phosphorus levels on photosynthetic characteristics nutrition absorption,and agronomic and economic traits. The results show with increasing of P rates from 0 to 135 kg·hm^-2,contents of N,P,K in tobacco leaves were increased,and photosynthetic characteristics enhanced,and the agronomic and economic characters were improved. These effects varied with the growth stage. However, with increase of P rate from 135 to 168. 75 kg·hm^-2,the decreased effects or non-significant change were obtained for the above parameters. All factors considered,effect of 135 kg·hm^-2 treatment was the best under special condition with climate and soil ecology and cultivation. This P rate could improve leaf nutrition,photosynthetic characteristics,yield,and quality of flue-cured tobacco leaves,and thus enhance economic benefit.
出处
《河南农业大学学报》
CAS
CSCD
北大核心
2016年第2期171-175,共5页
Journal of Henan Agricultural University
基金
广东中烟工业有限责任公司技术中心科技项目(粤烟工05XM-QK〔2014〕015)
关键词
烤烟
磷肥水平
光合特性
产量
品质
flue-cured tobacco
phousphorus rate
photosynthetic characteristics
yield
quality
