Algebra Agriculture Differential equations, Partial English Literature, Short Stories,Russian Literature Erosion of the soil Evolution and genetics Food conservation Food security-Congresses Food supply Genomics--Data mining--Génomique Hilbert space India NITROGENOUS FERTILIZER MATERIALS Nitrogen Nitrogenous fertilizers, phosphaitc fertilizers, Potash Fertilizers Factory mixed fertilizers, Home mixing fertilzers organic matter Numerical range ORIGIN AND PLACEMENT OF SOIL METERIAL PHYSICAL PROPERTIES OF SOIL Particles (Nuclear physics) Plant breeding Plant propagation REQUIRMENTS FOR PLANT GROWTH Russia-petroleum industry and trade SOIL ORGANISMS Software engineering Soil Soil Acidity Soil biology Soil organisms TILLAGE OF THE SOIL