Agni Purana (Jyotisha Selections) · by Vyasa
Chapter 1 · Muhurta: Marriage, Home, Farming
ज्योतिःशास्त्रम्
पितृदैवे तथा सौम्ये धान्यच्छेदं मृगोदये ।हस्तचित्रादितिस्वातीरेवत्यां श्रवणत्रये ॥ ५० ॥
In the full Agni Purana this is chapter 121, verse 50.
Cut the grain in Magha and Mrigashira, with Capricorn rising. Also in Hasta, Chitra, Punarvasu, Svati, Revati and the three from Shravana.
Simple meaning: Cut the grain under these stars, with Capricorn rising.
स्थिरे लग्ने गुरोर्वारेऽथ वा भार्गवसौम्ययोः ।
Do the entry in a fixed rising sign, on these days and under these stars.
पत्रस्थं लिखितं धान्यराशिस्थं धान्यवर्धनम् ।
A figure written on a leaf and kept in the grain heap makes grain grow.
एतेषु षट्सु विज्ञेयं धान्यनिष्क्रमणं बुधैः ।
Taking out grain and setting up gods and stepwells have their stars and the Sun's northward turn.