| At present,china flower industry booming,demand for high-quality peat was growing,and the import of the peat also increased year by year.At the same time,because of weak treatment process and poor quality,even if the low price is also from the majority of farmers still favor.This paper studied on the difference of nutrients between domestic peat and foreign peat,regulating nutrients of domestic peat to approach or achieve the good quality of foreign products.The experiment analyzed the chemical properties of domestic and foreign peat in the laboratory.Then,the domestic and foreign peat was treated with various temperatures and time.At certain temperature,simulate watering flower pots in the ideal matrix.Finally,this experiment took Anthurium andraeanum Lind.as test material.The results showed that comparing with the foreign peat,the domestic peat has higher nutrient content.The N and P contents of the domestic peat are 2-3 and 3-5 times higher than the foreign peat,and the Na,Ca,Fe and Mn contents of the domestic were much higher than the foreign peat.The pH value is higher and the organic matter content is lower than foreign peat.By comparing nutrients of domestic and foreign peat,provide theoretical support for improving the horticulture utilization efficiency of domestic peat.By analyzing nutrients of saturation lixivium,research trend of peat nutrient exudation. The results showed that substrate temperature and the nutrient leaching rate were positively correlated.The nutrient leaching rate and leaching quantity of domestic peat were higher than foreign peat.Leaching of nutrients directly affected the follow-up measures of the cultivation.By the matrix formula and additives,improve the quality of domestic peat.The results showed that the optimum dosage of nutrition was 2000g/m~3.The effects of substrate formula(peat:perlite=3:1,peat:vermiculite=3:1,peat:perlite:vermiculite=3:1:1,peat:perlite:ve rmiculite=2:1:1) were very poor on the growth of Anthurium.Because the conditioner has no high volatility,precise application rate can not be quantified.Through analyzing nutrient of domestic peat and pot experiment,this research searched for feasibility recipes and additives to provide reference for the future development of domestic peat. |
