Phalaenopsis occupies a large share in the Lunar New Year flower market, and large-scale factory cultivation is one of the key factors for its industrial success. After the Phalaenopsis is out of the bottle, the entire cultivation process is carried out around the substrate. The type of substrate is one of the main factors affecting the growth and blooming number of the Phalaenopsis.

Nowadays, moss and peat moss are mainly used as the cultivation substrate in commercial cultivation of Phalaenopsis. However, peat is a non-renewable resource and there is a danger of exhaustion due to over-exploitation. Therefore, based on local resources, seeking and discovering a new type of cultivation substrate that is easy to obtain, cheap, and can replace peat has become one of the research hotspots of Phalaenopsis researchers. Therefore, the author uses coconut bran and peat as the substrate to study the nutrient content changes of Phalaenopsis plants under different substrate conditions and the nutrient absorption in different growth stages, aiming to provide data support for the replacement of peat to cultivate Phalaenopsis, and to reduce the Phalaenopsis The cost of large-scale production provides a reference.

Materials and Methods

The materials tested were Phalaenopsis cultivars ‘Neishan 71’ and ‘9#’, provided by Jinan Qilin Flower Co., Ltd. Coconut chaff was purchased from Xiamen Shengfang Ecological Technology Co., Ltd., soaked in clear water; the peat was Danish Pinshi peat soil.

The method experiment was carried out in the intelligent greenhouse of the Institute of Vegetables and Flowers, Shandong Academy of Agricultural Sciences from 2012 to 2014. Two phalaenopsis varieties with the same seedling age were selected and planted in new coconut peat and peat substrates. There are 4 treatments in the experiment, namely T1:'Neishan 71' + Coco Peat, T2:'Neishan 71' + Peat, T3: '9#' + Coconut Chaff, T4: '9#' + Peat, each treatment is repeated Three times, each planting 100 Phalaenopsis was repeated.

The environmental shading degree inside the test greenhouse is 50% to 70% (varies with seasons), and the humidity is maintained between 65% and 85%. Use artificial watering and fertilization, irrigate the Shanghai Yongtong "Hua Wuqian" 20-20-20 balanced fertilizer 4000 times liquid in the 1.5-inch nursery bowl, water 3000 times the balanced fertilizer in the 2.5-inch nursery bowl, water the "flowers" until the 3.5 inch cup No shortage" 10-30-20 fertilizer 2000 times liquid. Fertilizer and water alternately irrigate.