Effects of fertilization regimes on tea yields, soil fertility, and soil microbial diversity
作者： Shan-Lian Qiu , Li-Min Wang , Dong-Feng Huang , Xin-Jian Lin
DOI: 10.4067/S0718-58392014000300012
关键词:
摘要: Fertilization is an important agricultural practice for increasing crop yields and influencing soil properties. A field experiment was conducted in the period of 2006-2011 southeastern China, to investigate effects fertilization regimes on tea (Camellia sinensis [L.] Kuntze) yields, chemical properties, bacterial fungal communities. The included six treatments: (1) unfertilized control (CON); (2) fertilizers (NPK); (3) half-chemical plus half-organic manure (1/2NPKOM); (4) organic (OM); (5) legume stover returned (1/2NPKOM+L), (6) (NPKL). Results showed that, compared control, NPK treatment no significant effect matter (SOM), total N (TN), P (TP), K (TK), available (AN), (AK) but lowest Shannon index 1.714 value 2.002 index. Organic had richest diversity community with 2.542, highest levels essential nutrients, including SOM (30.03%), TN (2.90 g kg-1), TP (1.35 AN (245.30 mg AP (57.00 AK (271.80 followed by 1/2NPKOM+L, which appeared maximal 6772 kg ha-1. amendment a key factor determining properties productivity. Base quality both OM 1/2NPKOM+L treatments were recommended as better choices practices soils China. These findings provided understanding importance fertilizations promoting fertility, altering microbial diversity, leading selection scientific sustainable development agroecosystems.
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