Title: Rhizosphere Management:the Key to Get High Nutrient Use Efficiency for Fruit Vegetable
Abstract: The input of water and fertilizer are far more than the crop demand in intensive greenhouse vegetable production.To meet sufficient supply of water and fertilizer in the root zone,the high input always lead to high N loss,obvious P and K accumulation in the soil,and physiological deficiency in crops are getting more serious.The keys to maintain high quality and efficiency in vegetable production is to maintain optimal water and fertilizer supply and keep healthy and good rhizosphere environment and to reduce unnecessary nutrient loss based on the crop growth.A summary of the keys to control high quality and efficiency vegetable production is presented:i.e.considering the nutrient balance concentration,form and nutrient ions in the root zone soil solution;reducing water leakage and maintaining water and nutrient spatially consistent.Combining with soil warming,applying the high C/N ratio manure or straw to regulate the soil can promote the root growing,improve crops resistance and nutrient absorption efficiency.The principle of applying the manure and chemical fertilizer in greenhouse production is controlling the total and regulation on stage;more times and less quality,application in rhizosphere and fertigation technology should be considered in N management;The constant monitoring rule of crop demand and maintain the soil fertility should be combined in P and K management;The principle of adjustment based on deficiency also should be adopt in secondary and micro-nutrients management.To achieve water and fertilizer high efficiency use and sustainable development of greenhouse vegetable,these principles and root zone management should be combined together.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
Access and Citation
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot