| In order to determine the suitable cropping patterns of young tea plantation under the ecological environment in Shandong province,this paper investigated the effects of different treatments including intercropping soybean, peanut ,corn and covering with shading net in young tea seedling plantation on ecological environment, seed germination, tea plant growth and photosynthesis. The main results showed as follows:1. Intercropping high stalk crop (corn) or middle stalk crop (soybean) was better than short stalk crop (peanut) in young tea plantation in Shandong province.2. When rows of tea plant were east-west trend, the effect of intercropping soybean was the best. The effects of intercropping soybean were as follows: garden temperature reduced 3.1-3.6℃, light intensity reduced to 86.4-90.4%, daily mean air humidity increased by 10.6%, soil moisture increased by 13.0%, daily mean photosynthetic rate was 2.7 times as large as that of control group, survival rate, plant height, stem diameter, inter-node length, leaf area per plant increased by 32.3%, 60.5% , 33.1%, 218.9% respectively.3. When rows of tea plant were north-south trend, the effect of intercropping maize was the best. The effects of intercropping maize were as follows: garden temperature reduced 1.7-3.8℃, daily mean light intensity reduced to 47.6%, daily mean air humidity increased by 15.77%, soil moisture increased by 27.1%, daily mean photosynthetic rate was 7.1 times as large as that of control group, the growth indexes such as plant height, stem diameter, inter-node length and leaf area were all better than that of others during the period of determination .4. Intercropping could substantial increase air humidity than covering with shading net , while the latter was more effective than intercropping in both decreasing light intensity and air temperature in tea plantation when tea rows were north-south trend.
|
PDF Full Text Request