摘要
以8a生鸭梨树为试材,研究比较了不同尿素施用量对鸭梨产量、品质和耕作层氮素含量的影响。结果表明:尿素施用量为86.9kg/667m2的高施氮区增产效果明显高于施用尿素43.4kg/667m2的中施氮区和施用尿素21.7kg/667m2低施氮区;梨果品质测定显示果实硬度、可溶性固形物含量、粗蛋白含量、维生素C含量均为中施氮区高于高施氮区;土壤耕作层水解性氮含量果实采收后残存量较低。综合鸭梨产量和果实品质均以中施尿素区效果最佳。
Taking the 8-year-old pear tree as materials,the effect of different levels of urea use on pears yield,and fruit quality and nitrogen content in soil plough layer were studied.The results showed that high nitrogen area（86.9 kg/667m^2） increased yield significantly higher than middle（43.4 kg/667m^2） and low nitrogen area（21.7 kg/667m^2）;fruit hardness,soluble solid content,protein content,vitamin C content of middle nitrogen were higher than in the area of high nitrogen area;soil plough layer hydrolytic nitrogen content was low after the fruit picking residual stock.Comprehensive consideration,pears yield and fruit quality were the best in middle nitrogen area.
出处
《北方园艺》
CAS
北大核心
2013年第11期165-167,共3页
Northern Horticulture
基金
河北省科技厅自选资助项目(20123336)
关键词
鸭梨
尿素
施氮量
品质
Pyrus bretschneideri Rehd.cv.Yali
urea
nitrogen fertilizer rate
quality
