氮素用量对叶用枸杞氮磷钾养分积累及产量的影响  

Effect of Nitrogen Fertilizer Application on the Accumulation of NPK and Yield for Leaf Wolfberry

作　　者：王蓉[1] 王伟[1] 王娅丽[1] 王金涛[1] 司光义 

机构地区：[1]国家林业局枸杞工程技术研究中心,宁夏银川750004 [2]贺兰林业局,宁夏银川750200

出　　处：《北方园艺》2016年第11期160-163,共4页Northern Horticulture

基　　金：国家林业局枸杞工程技术研究中心实验室研究专项资助项目(2015-GQZX-3)

摘　　要：以枸杞"叶用1号"为试材,采用田间试验与测试分析方法,在宁夏银川金凤区森淼现代林业科技园进行了叶用枸杞肥料试验,研究了春季氮素用量对叶用枸杞植株氮磷钾养分积累和产量的影响。结果表明:适量的增施氮肥能够促进叶用枸杞对氮磷钾素的积累;100kg叶芽所需氮(N)0.35~0.58kg、所需磷(P_2O_5)0.08~0.13kg、所需钾(K_2O)0.15~0.24kg,其三要素(N∶P_2O_5∶K_2O)平均比例为1∶0.24∶0.44;当每667m^2施氮量为2.18kg时,叶用枸杞每667m^2生物产量最高值为313.89kg;当每667m^2施氮量为2.45kg时,每667m^2叶芽产量最高值为88.41kg;当最佳经济效应每667m^2施氮量为2.40kg时,每667m^2最佳经济产量为88.40kg。Taking ＇Leaf No.1＇ wolfberry as test material,the effect of nitrogen fertilizer application on the accumulation of NPK and yield was studied,and the field experiment was conducted at Senmiao Modern Forestry Science and Technology Park of Jinfeng District in Yinchuan of Ningxia.The results showed that increasing the amount of nitrogen fertilizer had a role in promoting absorption of NPK.Under all experimental condition,producing every 100 kg leaf wolfberry sprout need N 0.35-0.58 kg,P2O5 0.08-0.13 kg and K2O 0.15-0.24 kg,and the proportion of N,P2O5,K2O was 1∶0.24∶0.44.When nitrogen application rate reached 2.18 kg per 667m2,the maximum biological production per 667m2 could be313.89 kg,and nitrogen per 667m2 reached 2.45 kg,the maximum production per 667m2 could be 88.41 kg.The best economic yield per 667m2 was 88.40 kg when nitrogen fertilization per 667m2 was 2.40 kg.

关 键 词：叶用枸杞 氮磷钾 产量 

分 类 号：S143.1[农业科学—肥料学] S565.5[农业科学—农业基础科学]