Declension table of ?kṛṣṇabhūma

Masculine	Singular	Dual	Plural
Nominative	kṛṣṇabhūmaḥ	kṛṣṇabhūmau	kṛṣṇabhūmāḥ
Vocative	kṛṣṇabhūma	kṛṣṇabhūmau	kṛṣṇabhūmāḥ
Accusative	kṛṣṇabhūmam	kṛṣṇabhūmau	kṛṣṇabhūmān
Instrumental	kṛṣṇabhūmena	kṛṣṇabhūmābhyām	kṛṣṇabhūmaiḥ kṛṣṇabhūmebhiḥ
Dative	kṛṣṇabhūmāya	kṛṣṇabhūmābhyām	kṛṣṇabhūmebhyaḥ
Ablative	kṛṣṇabhūmāt	kṛṣṇabhūmābhyām	kṛṣṇabhūmebhyaḥ
Genitive	kṛṣṇabhūmasya	kṛṣṇabhūmayoḥ	kṛṣṇabhūmānām
Locative	kṛṣṇabhūme	kṛṣṇabhūmayoḥ	kṛṣṇabhūmeṣu

Compound kṛṣṇabhūma -

Adverb -kṛṣṇabhūmam -kṛṣṇabhūmāt