Modifiers matching nitrogen:

• elemental,
• inorganic,
• atmospheric,
• volatile,
• dry,
• fixed,

Simple categories matching dry:

• process,
• food,
• material,
• soil,
• sample,
• situation,
• flower,
• fertilizer,
• surface,
• bulk,
• debris,
• ingredient,
• area,
• ground,
• mixture,
• sound,
• grain,
• herb,
• biome,
• matter,
• skin,
• precipitation,
• onion,
• medium,
• filler,
• condition,
• zone,
• fruit,
• climate,
• system,
• mulch,
• cracker,
• product,
• flavour,
• times,
• duster,
• oil,
• legume,
• provisions,
• line,
• alcohol,
• color,
• structure,
• season,
• wall,
• sport,
• valley,
• dielectric,
• cargo,
• trash,
• scavenger,
• commodity,
• composition,
• aggregate,
• utensil,
• grape,
• noodle,
• fiber,
• garment,
• article,
• dish,
• metal,
• region,
• particulate,
• footwear,
• spring,
• nut,
• solid,
• concentrate,
• source,
• liquid,
• staple,
• spot,
• meat,
• pasta,
• country,
• rubbish,
• rock,
• forest,
• medication,
• compound,
• tree,
• bean,
• object,
• sorbent,
• location,
• measure,
• vegetable,
• forage,
• yeast,
• clothing,
• grass,
• part,
• gas,
• nitrogen,
• hardwood,
• heat,
• boot,
• carrier,
• contact,
• paper,
• constituent,
• particle,
• roughage,
• thing,
• slope,
• seed,
• burgundy,
• tissue,
• habitat,
• community,
• seasoning,
• land,
• bedding,
• plant,
• site,
• concept,
• deposit,
• treatment,
• woodland,
• pesticide,
• fuel,
• substance,
• cake,
• illness,
• cloth,
• bait,
• beverage,
• information,
• ballast,
• air,
• spice,
• cell,
• waste,
• coupling,
• residue,
• packing,
• straw,
• leaf,
• beer,
• chemical,
• sherry,
• handwear,
• cable,
• contaminant,
• soup,
• powder,
• stout,
• item,
• stuff,
• container,
• stain,
• component,
• pea,
• flour,
• sausage,
• wood,
• game,
• operations,
• softwood,
• room,
• dirt,
• base,
• feature,
• curd,
• fabric,
• brown,
• bread,
• medicine,
• solvent,
• layer,
• garbage,
• gear,
• feed,
• partition,
• ore,
• environment,
• beach,
• month,
• scent,
• wine,
• cheese,
• event,
• place,
• foodstuff,
• lubricant,
• period,
• cereal,
• pharmaceutical,
• mammal,
• appliance,
• mortar,
• fodder,
• time,
• form,
• clay,
• atmosphere,
• substrate,