共 15 条
- [1] CHAPMAN H.E., 1966, DIAGNOSTIC CRITERIA
- [4] JOHAM HE, 1966, AGR CHEM, V21, P18
- [5] JONES JB, 1967, SOIL TESTING PLANT 2
- [6] KENWORTHY AL, 1967, SOIL TESTING PLANT 2
- [10] BORON NUTRITION OF SUGAR BEET COTTON AND SOYBEAN [J]. AGRONOMY JOURNAL, 1969, 61 (02) : 191 - &