Impacts of Interspecific Interactions on Crop Growth and Yield in Wheat (Triticum aestivum L.)/Maize (Zea mays L.) Strip Intercropping under Different Water and Nitrogen Levels

Interspecific interactions and recovery growth play an important role in crop growth, development ultimately yield intercropping systems. However, the impact of different water nitrogen levels on production, interspecific between intercrops, late-maturing crops is still unclear. A two-year field experiment was conducted Yangling, Shaanxi province, to investigate dynamics interactions, effects yield. The consisted three factors, including cropping systems (wheat/maize intercropping, sole wheat, maize), (N) two applications (supplementary irrigation rainfed). results demonstrated that, during co-growth period, intercropped wheat more competitive than maize; so, showed a advantage. Intercropping increased maize under irrigated conditions, this attributed full after harvest. rainfed nil aggravated competition, deficit rows, turn, limited maize, leading reduction. compared with decreased, indicating deficiency maize. Among all treatments, medium fertilizer had best improvement land use advantages, total 14.8% higher that cropping, efficiency 16%. These confirmed supplementary optimal application alleviated promoted improved wheat/maize system.