摘要
将2年生藤稔葡萄栽植于填充有20L河沙的PVC塑料袋中,设置施用含N 30、60和120mg/L的复合液肥3个施肥水平,并以定植于80cm宽、30cm厚沙层的上述幼树为对照,探讨根域限制下施肥水平对葡萄幼树生长和主要营养元素吸收的影响。结果表明,根域限制抑制营养生长,也抑制了N和Fe的吸收,增加施肥量后可以部分地抵消这些抑制作用,但根域限制和施肥水平对树体各部位P和Zn等矿质元素的含量没有显著影响。
year-old ‘Fujiminori’ grapevines were planted in plastic bags filled with 20L sand and irrigated with threecompound liquid fertilizer containing 30,60 and 120mg/L nitrogen respectively. The control trees were planted in the sand layer(80cm wide, 30cm height) with root system uncontrolled. Effect of fertilization levels on young vine growth and absorption ofmineral nutrition under root system control were investigated. The results show that both the vine growth and absorption of N andFe were inhibited under root system control, and the increase in amount of fertilizer applied could counteract the inhibition in asense. But root system control and fertilization levels had no significant effect on absorption of Zn and P.
出处
《中外葡萄与葡萄酒》
2004年第3期13-16,共4页
Sino-Overseas Grapevine & Wine
关键词
根域限制
施肥水平
营养元素
Root system control
Fertilization levels
Mineral nutrition
