Fertilization Practices: Optimization in Greenhouse Vegetable Cultivation with Different Planting Years

Cucumber plant growth and the fate of N in plant-soil system are influenced by fertilization practices, strengths which may vary among soils. Three soils with different years greenhouse vegetable cultivation (0, 2, 18 years) were fertilized differently (CK, no fertilizer applied; CF, chemical NPK fertilizers RCF, reduced applied, N, P, K 46.5%, 68.6%, 54.7%; RCF+CM, 75% total derived from rest chicken manure case fertilization) a pot experiment to study changes cucumber (Cucumis sativus L.) growth, uptake, residue, losses. The original soil was insufficient maintain leaf chlorophyll synthesis at later stages, even cultivation, where content highest (total 1.73 g kg−1). However, CF treatment excessive inhibited early growing stage accelerated senescence later, especially longer cultivation. Therefore, application (RCF RCF+CM) is appropriate improve productivity planting years. Although same amount RCF+CM performed better than RCF terms increasing uptake (by 30.5%) pool storage 25.0%) while decreasing losses 16.6%) 0 In 2 itself functions much exogenous retention supply, not significantly between treatments. We conclude that co-application optimal for promotion, output-input ratio increase, fertility improvement, environmental risk mitigation.