Nitrogen Uptake and Plant Growth II. An Empirical Model of Vegetative Growth and Partitioning

1986 ◽  
Vol 58 (4) ◽  
pp. 487-496 ◽  
Author(s):  
T. Hirose
Keyword(s):  
Plant Growth ◽  
Nitrogen Uptake ◽  
Empirical Model ◽  
Vegetative Growth

Remote estimation of above ground nitrogen uptake during vegetative growth in winter wheat using hyperspectral red-edge ratio data

2015 ◽  
Vol 180 ◽  
pp. 197-206 ◽  
Author(s):  
Wei Feng ◽  
Bin-Bin Guo ◽  
Hai-Yan Zhang ◽  
Li He ◽  
Yuan-Shuai Zhang ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Nitrogen Uptake ◽  
Vegetative Growth ◽  
Red Edge ◽  
Ratio Data ◽  
Remote Estimation

scholarly journals Yield and vegetative growth of cactus pear at different spacings and under chemical fertilizations

2016 ◽  
Vol 20 (6) ◽  
pp. 564-569 ◽  
Author(s):  
João A. da Silva ◽  
Sérgio L. R. Donato ◽  
Paulo E. R. Donato ◽  
Evilasio dos S. Souza ◽  
Milton C. Padilha Júnior ◽  
...  
Keyword(s):  
Plant Growth ◽  
Plant Height ◽  
Vegetative Growth ◽  
Dry Matter ◽  
Block Design ◽  
Plant Age ◽  
Cactus Pear ◽  
Area Index ◽  
Randomized Block Design

ABSTRACT The objective was to evaluate the effect of different spacings and mineral fertilizations on cactus pear growth and production in a randomized block design, with three replicates, in a 3 x 4 factorial scheme: three spacings, 1.00 x 0.50 m, 2.00 x 0.25 m and 3.00 x 1.00 x 0.25 m, and four fertilizations, 000-000-000, 000-150-000, 200-150-000 and 200-150-100 kg ha-1 of N, P2O5 and K2O, respectively. Plant growth was evaluated between 90 and 390 days and production and growth were evaluated at 620 days after planting. There were significant interactions between spacing and fertilization for plant height, number of cladodes and cladode area index from 90 to 390 days and for production of fresh and dry matter at 620 days after planting. Spacing influenced cladode area index, while fertilization influenced plant height, number of cladodes and cladode area index at 620 days after planting. Plant height showed cubic effect for the days after planting. Number of cladodes and cladode area index were dependent on spacing, fertilization and plant age, and fitted to cubic models. The best results of growth and production of fresh and dry matter are associated with NPK and NP fertilizations and the spacing of 1.00 x 0.50 m.

Response of Centipedegrass (Eremochloa ophiuroides) to Plant Growth Regulators

1992 ◽  
Vol 6 (1) ◽  
pp. 113-118 ◽  
Author(s):  
B. Jack Johnson
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Vegetative Growth ◽  
Initial Treatment ◽  
Growth Suppression ◽  
Severe Injury ◽  
Eremochloa Ophiuroides

CGA 163935, paclobutrazol, and paclobutrazol plus mefluidide were evaluated for their growth regulating effect on centipedegrass over 3 yr. Paclobutrazol did not effectively suppress seedhead production or vegetative growth. Paclobutrazol plus mefluidide at 1.1 + 0.3 kg ai ha–1in each of two applications at a 2-wk interval suppressed seedhead development 77% (average of 3 yr) at 10 wk after the initial treatment without severe injury or loss of stand, but duration of vegetative growth suppression was variable (0 to 6 wk). CGA 163935 applied at 0.4 kg ai ha–1and followed by 0.2 kg ai ha–12 wk later suppressed vegetative growth of mowed and nonmowed centipedegrass for 10 wk, while suppressing seedhead production for 3 to 5 wk. CGA 163935 caused severe injury and stand loss of centipedegrass.

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