共 35 条
- [23] NEVENS WB, 1942, B ILL AGRIC EXP STN, P494
- [24] NORDEN A. J., 1964, AGHON J, V56, P269
- [26] ROSSMAN EC, 1966, ADVANCES CORN PRODUC
- [29] EFFECT OF POPULATION AND ROW WIDTH ON CORN SILAGE YIELDS [J]. AGRONOMY JOURNAL, 1967, 59 (05) : 475 - &
- [30] SCHUSTER W., 1961, Zeitschrift fur Acker- und Pflanzenbau, V113, P243