Matsya Purana — Saubhagya-Śayana Vow: Lalitā/Gaurī–Śiva Worship
ततो जनानां संजाताः सप्त सौभाग्यदायिकाः इक्षवो रसराजाश्च निष्पावाजाजिधान्यकम् //
tato janānāṃ saṃjātāḥ sapta saubhāgyadāyikāḥ ikṣavo rasarājāśca niṣpāvājājidhānyakam //
Thereupon, for the benefit of humankind, seven fortune-bestowing food crops came into being—sugarcane, the king of juices (the finest sap), together with niṣpāva (a kind of bean), barley, and other grains.
It reflects the post-creation ordering of the world: after cosmic stabilization, life-supporting crops arise for human sustenance and prosperity (not a pralaya description, but a restoration/creation-phase detail).
It implies a dharmic duty to sustain society through agriculture, fair distribution of grains, and maintaining prosperity—key responsibilities for householders (food production) and kings (protection and provisioning).
The crops named are primary for offerings (naivedya) and yajña materials—especially sugarcane/juice and grains—supporting ritual economy that also underpins temple life and settlement planning.