nitrogen
Evaluation of integrated nitrogen and phosphorous management using the TT biplot method in soybean
Moghan College of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran (1,2,3)
Response of maize (Zea mays L.) to rates of nitrogen and zinc application in Minna, Southern Guinea Savanna of Nigeria
Department of Soil Science and Land Management, School of Agriculture and Agricultural Technology, Federal University of Technology, Minna, Nigeria (1)
The effect of crop density and applied nitrogen on the interaction between Lolium italicum and Galium aparine
University of Belgrade, Faculty of Agriculture, Belgrade-Zemun (1,2,3,4,5)
The effect of different densities of Italian ryegrass (Lolium italicum L.: G1- 5 kg/ha seeds, 60 cm row spacing; G2- 5 kg/ha seeds, 20 cm row spacing; G3- 20 kg/ha seeds, 60 cm row spacing, and G4- 20 kg/ha seeds, 20 cm row spacing) and different rates of applied nitrogen fertilizer (N1- 0 kg N/ha; N2 - 50 kg N/ha; N3- 100 kg N/ha and N4-150 kg N/ha) on SPAD values under interaction between the crop and cleavers (Galium aparine L) was investigated.