# Interrelationships between performance of direct drilled seeds, soil micro-environment and drilling equipment

> 1979 doctoral thesis by Mohammed Ashraf Choudhary at Massey University

**Wikidata**: [Q112837753](https://www.wikidata.org/wiki/Q112837753)  
**Source**: https://4ort.xyz/entity/interrelationships-between-performance-of-direct-drilled-seeds-soil-micro-environment-and-drilling-equipment


## References

1. [Source](http://hdl.handle.net/10179/3612)