Effects of Applying Humic Fertilizers on Tea's Yield , Nutritional Quality and Soil Fertility in a Tea Garden

DOI

10.2991/icmemtc-16.2016.207How to use a DOI?

Keywords

Humic acid fertilizers; Tea; Yield; Nutritional quality; Soil fertility

Abstract

A field trial with 2 kinds of humic acid fertilizers (i.e., humic acid and weathered coal) being added to the balance use of nitrogenous, phosphorus and potassium fertilizers for 3 years was carried out to test effects of tea's yield, nutritional quality and soil fertility in a tea garden. And 4 treatments were designed, i.e., (1) Chemical fertilizers (N 103 kg-hm-2-a-1, P2O5 34 kg-hm-2-a-1 and K2O 34 kg-hm-2-a-1, following was the same); (2) Chemical fertilizers (same as (1))+Humic acid(2000 kg-hm-2-a-1), (3) Chemical fertilizers (same as (1))+weathered coal(1500 kg-hm-2-a-1), (4) Chemical fertilizers (same as (1))+Humic acid(1000 kg-hm-2-a-1)+weathered coal(750 kg-hm-2-a-1). Results show that, under the condition of humic acid fertilizers being used in tea garden, tea's yield and tea polyphenols were increased by 3.19%~14.24% and 5.21%~10.73%, respectively; Soil pH, organic matter, total nitrogen, total phosphorus, total potassium, alkali-hydrolyzable nitrogen, available phosphorus and potassium were increased by 2.97%~18.61%, 8.86%~27.22%, 9.80%~45.10%, 6.12%~40.82%, 4.52%~40.16%, 8.81%~45.75%, 0.62%~67.55% and 5.56%~36.09%, respectively. Whereas, effects of increasing tea's yield, tea polyphenols and soil alkali-hydrolyzable nitrogen by treatment of "chemical fertilizer + humic acid + weathered coal" were better than other treatments; Effects of increasing soil organic matter, total nitrogen, total phosphorus, total potassium, available phosphorus and potassium by treatment of "chemical fertilizer + humic acid" were better than other treatments; And the effect of enhancing soil pH by treatment of "chemical fertilizer + weathered coal" was better than other treatments.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Dongfeng Huang
AU  - Limin Wang
AU  - Tao Luo
PY  - 2016/04
DA  - 2016/04
TI  - Effects of Applying Humic Fertilizers on Tea's Yield , Nutritional Quality and Soil Fertility in a Tea Garden
BT  - Proceedings of the 2016 3rd International Conference on Materials Engineering, Manufacturing Technology and Control
PB  - Atlantis Press
SP  - 1046
EP  - 1051
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmemtc-16.2016.207
DO  - 10.2991/icmemtc-16.2016.207
ID  - Huang2016/04
ER  -