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Position: Home > Articles > A Study on Mineral Nutrition for Solution Culture of the Seedlings of Calamus tetradact ylus Forest Research 1992 (4) 387-393

白藤苗期矿质营养的研究

作  者:
陈青度
单  位:
中国林业科学研究院热带林业研究所
关键词:
白藤;营养液;N、P、K配比;生长;缺素症
摘  要:
本文报道了白藤苗期无土栽培营养配方的选择,N、P、K元素的最佳营养配比,营养元素缺乏的症状及对生长影响的研究结果。结果表明,1/2Machlis营养液,pH 5.0时较适合藤苗培养,其中N、P、K以90×10~(-6)(ppm):40×10~(-6)(ppm):160×10~(-6)(ppm)配比时更有利于藤苗生长。藤苗对缺素反应迟缓,但经6个月培养仍呈现缺素症。培养期间,缺素对植株地上部分生长影响较大,而对根系生长影响较小,从而显著降低了地上部分与根的鲜重比值。
译  名:
A Study on Mineral Nutrition for Solution Culture of the Seedlings of Calamus tetradact ylus
作  者:
Chen Qingdu(The Research Institute of Tropical Forestry CAF)
关键词:
Calamus tetradactylus nutrient solution ratio of N P K growth deficiency symptoms
摘  要:
This paper deals with the choice of nutrient solutions for the solution culture of the seedlings of Calamus tetradactylus, the best ratio of N P K in nutrient solution for the growth of the seedlings, the symptoms of nutrition deficiency and the effects of nutrition deficiency on the growth of the seedling. The results showed that 1/2 Machlis nutrient solution at pH 5.0 was quite suitable for the solution culture of the seedling; the ratio of 90×10-6(ppm) N:40×10-6(ppm)P:160×10-6(ppm)K was the best;the symptoms of nutrition deficiency appeared on the seedling very slowly, but after 6 months of solution culture some symptoms could be seen. During the solution culture, nutrition deficiency affected the growth of the above-ground more seriously than that of under-ground,therefore the rate of fresh weight of the above-ground to under-ground decreased.

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