Zobrazeno 1 - 4
of 4
pro vyhledávání: '"N. W. Hummel"'
Publikováno v:
Communications in Soil Science and Plant Analysis. 20:2149-2170
Nitrogen fertilization is of major importance in maintaining turfgrass stands. Although rates and sources of N may vary on different turfgrass areas, efficient utilization of N applications is always important. This research was conducted in the fiel
Autor:
N. W. Hummel
Publikováno v:
Agronomy Journal. 81:290-294
(...) The most rapid response to fertilization as measured by fresh weight yields and color ratings was produced by urea, followed in order by SCU, RCU-70, and RCU-100. The release rate of RCU-270 was too slow to produce acceptable color ratings thro
Autor:
D. V. Waddington, N. W. Hummel
Publikováno v:
Soil Science Society of America Journal. 48:191-195
Autor:
N. W. Hummel, D. V. Waddington
Publikováno v:
HortScience. 21:1155-1156
A field study was conducted to characterize dissolution of sulfur-coated ureas (SCU) of different particle sizes. Five fine and 4 coarse SCU sources from the Tennessee Valley Authority (TVA) were selected to represent a range of 7-day dissolution rat