Rapport annuel de la Caroline du poste de l'expérience agricole . •Spqsne SJBg JO OX -OJDV J9d i u ?gJQ jo ?l'OLP A N W N à 00 OS co eo eo OS 00 <M <M 00 CO 8 2 2 Z O H 2 CO CO CO CO CO oo eo t^^ t* - 50 lO lO lO lO CO CO CO <M CO CO CO CO CO CO •S T3 T) g Q S £ j " tf pg 14 N. C. Agricultural Experiment Station. cent, et pour les cinq variétés du Nord, 49,1  %. Le averageyield avec du maïs, du nord étant moins 0,7 boisseaux par acre, haveproduced ils 8.2  % de plus l'oreille à l'usine total que les variétés de pays du Sud. Facteurs affectant la période de maturité. Avec cor

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Annual report of the North Carolina Agricultural Experiment Station . OX JO SJBg •spqsne —OJDV J9d I u?gJQ jo Plo?A N W N to 00 OS eo co eo OS 00 <M <M 00 CO 8 2 2 Z O H 2 CO CO CO CO CO oo eo t^ t^ -* lO 50 lO lO lO co CO CO <M CO CO CO CO CO CO •S T3 T) g Q S £ j « tf pg 14 N. C. AGRICULTURAL EXPERIMENT STATION. cent, and for the five Northern varieties, 49.1 per cent. With the averageyield of the Northern corns, being 0.7 bushels less per acre, they haveproduced 8.2 per cent more ear to total plant than did the varieties fromthe South. FACTORS AFFECTING PERIOD OF MATURITY. With corn as with other plants, the number of days required for thegrowth of the plants from the sprouting of the seed to full maturity isgoverned, within narrow limits, by variety, soil, season, elevation, fertili-zation, date of planting and source of seed. Of the varieties grown indifferent portions of North Carolina, it usually requires from one hun-. (29) (30) (31) (32) Fig. 8.—Type Ears of Varieties: (29) Learning Yellow; (30) Kansas Sunflower; (31) Jones Yellow Dent; and (32) Hildreths Yellow Dent. dred to one hundred and forty days to make a completed growth fromplanting. Effect of Variety.—In the study of varieties of corn during the pastfew years many instances of differences in earliness in maturity ofvarieties, originated under the same conditions and sometimes by thesame grower, have come under the observation of the writer. To someextent the originator or improver of a variety may select seed in such amanner as to have the variety within a few years mature at either anearly, medium or late date. Jarvis Improved, which was originated SOME FACTORS IN SUCCESSFUL CORN GROWING. 15 5C0MtM10C-i0t-Mei5C-t-Ot-MOOt-lft I d fc- 06 o> co os c- oi c-^ © ?>* © oi ^ oj 3 gg ?># lo 06 | =><NO<N©NO.-l©.-< 1-1 oc-c-0000 co locoooeooc- . e-©« •I8SSBX * CO ?<* C--^ US CO o££ eg cm 00 cs ^h

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