|Table of Contents|

Study on the Distribution of Dry Matter and Nutrient Absorption of Bitter Gourd

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2021年01
Page:
7-14
Research Field:
Publishing date:

Info

Title:
Study on the Distribution of Dry Matter and Nutrient Absorption of Bitter Gourd
Author(s):
ZHANG Jinming1; 2; YANG Yan2; QI Zhiqiang2; DU Gongfu2; NIU Yu2; HAN Xu2
(1.College of Horticulture,Hainan University,Haikou,Hainan 570228；2.Tropical Crops Genetic Resources Institute,Chinese Academy of Tropical Agricultural Sciences,Haikou,Hainan 571011)
Keywords:
bitter gourd; distribution of dry matter; nutrient absorption; major element; medium element; micro element; correlation analysis
PACS:
-
DOI:
10.11937/bfyy.20201997
Abstract:
The bitter gourd variety ‘Reke 1’ was used as the test material,with the method of potted,the dry matter distribution and the absorption of major element (N,P and K)，medium element (Ca and Mg) and micro element (Zn and B) of bitter gourd，as well as the correlation between dry matter accumulation and nutrient accumulation was studied，in order to provide theoretical basis for the application of fertilizers in practical production and realize the reasonable distribution and utilization of nutrients.The results showed that the ratio of total dry matter accumulation was root∶stem∶leaf∶fruit=1.00∶31.24∶27.80∶31.49.The absorption ratio of each element was N∶P∶K=1.00∶0.15∶1.33；Ca∶Mg=1.00∶0.19；Zn∶B=1.00∶1.60.According to the average production of 1 000 kg bitter gourd,the content of N,P,K,Ca,Mg,Zn,B required were 5.48 kg,0.84 kg,6.21 kg,2.44 kg,0.47 kg,0.02 kg and 0.04 kg respectively.The correlation between dry matter accumulation and nutrient accumulation of bitter gourd was significantly positive.The amount of nutrient absorption of bitter gourd was K>N>P>Ca>Mg>B>Zn.In the practical production,it should be noted the reasonable application of various nutrients.In the fruit stage of bitter gourd,the proportion of B fertilizer input was increased appropriately to improve the nutrient accumulation of fruit and yield.

References:

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Last Update: 2021-04-01