|Table of Contents|

Study on Nutrient Leaching Loss in Two Growth Substrates(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2016年17
Page:
179-183
Research Field:
Publishing date:

Info

Title:
Study on Nutrient Leaching Loss in Two Growth Substrates
Author(s):
SHEN Xiaoran1LI Shaocai1SUN Hailong2
(1.College of Life Science,Sichuan University,Chengdu,Sichuan 610064;2.State Key Laboratory of Water Resource and Hydropower,Sichuan University,Chengdu,Sichuan 610064)
Keywords:
leachingsubstratenutrient lossNPK
PACS:
-
DOI:
10.11937/bfyy.201617044
Abstract:
The soil column leaching method indoor,by the purple soil,peat,water retention agents,disinfectants,microbial fertilizer,urea,calcium superphosphate,potassium sulfate,prepared according to the different ratio of two kinds of matrix of N,P and K leaching test were studied by simulated rainfall.The results showed that in the same leaching experiment in each month,nutrient concentration of N,P,K in leaching solution significantly decreased as power function with the increase of leaching time.With the increase of leaching times,the nutrient concentration in the leaching solution the first increased to the peak value and then decreased gradually,it tended to be stable in the late stage.The nutrient loss in the leaching solution increased with the exponential increase of leaching time.According to the synthetic analyses of various factors above,substrate A was better to maintain soil nutrients,which provided the necessary theoretical basis of the development of the artificial soil.

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Last Update: 2016-10-17