Number | Name | Date | Kind |
---|---|---|---|
2022672 | Kniskern | Dec 1935 | |
2549430 | Crittenden | Apr 1951 | |
2855286 | Harvey | Oct 1958 | |
3440034 | Fuller | Apr 1969 | |
3930832 | Sansing, Jr. et al. | Jan 1976 | |
4025330 | Storey | May 1977 | |
4033747 | Young | Jul 1977 |
Number | Date | Country |
---|---|---|
705844 | Mar 1965 | CAX |
2730919 | Jan 1978 | DEX |
Entry |
---|
Liquid Fertilizer Manual, National Fertilizer Association, 1967, Illinois, pp. 18i, 18-1, 18-7, 18-10, 18-8, 18-9. |
Fertilizer Technology and Usage, McVickar, Malcolm H., et al., Soil Science Society of America, Wisconsin, 1963, pp. 308-309. |