| Titre de série : |
Agricultural Meteorology, 12 |
| Titre : |
Water use, energy balance and Growth of maize at Samaru, northein Nigeria |
| Type de document : |
texte imprimé |
| Auteurs : |
Kowal, J. M. ; Kassam, A. H. |
| Année de publication : |
1973 |
| ISBN/ISSN/EAN : |
CI-04502 |
| Note générale : |
Energy and water budget of maize crop grown in a dry sub-humid climate of northen Nigeria were assessed and related to crop performance. The pattein ofcrop water availability. The period of maximum water requierements by the crop occured when the leaf area index was greater than 2.1 and coincided with the period when the amount and frequency of rainfall was greatest. However, undr the prevailing climatic conditins, with potential evapotranspiration rates of 4-6 mm per day, the crop may experience water stress, if there is no rain for a period of 5 days or more. The rate of crop growth was drastically reduced when siol water potential decreased below - 0.5 bar. The total water used by the crop during 117 days from sowing to harvest was 486 mm, of wich 345 mm transpired ttrough the plants. Crop water use eficiency was 353g of water per gram of dry matter. |
| Langues : |
Anglais (eng) |
| Mots-clés : |
Utilisation de l'eau Equilibre énergétique Croissance du maïs Observation météorologique |
| Index. décimale : |
630 Agriculture et techniques connexes |
| Résumé : |
Energy and water budget of maize crop grown in a dry sub-humid climate of northen Nigeria were assessed and related to crop performance. The pattein ofcrop water availability. The period of maximum water requierements by the crop occured when the leaf area index was greater than 2.1 and coincided with the period when the amount and frequency of rainfall was greatest. However, undr the prevailing climatic conditins, with potential evapotranspiration rates of 4-6 mm per day, the crop may experience water stress, if there is no rain for a period of 5 days or more. The rate of crop growth was drastically reduced when siol water potential decreased below - 0.5 bar. The total water used by the crop during 117 days from sowing to harvest was 486 mm, of wich 345 mm transpired ttrough the plants. Crop water use eficiency was 353g of water per gram of dry matter. |
| Note de contenu : |
Energy and water budget of maize crop grown in a dry sub-humid climate of northen Nigeria were assessed and related to crop performance. The pattein ofcrop water availability. The period of maximum water requierements by the crop occured when the leaf area index was greater than 2.1 and coincided with the period when the amount and frequency of rainfall was greatest. However, undr the prevailing climatic conditins, with potential evapotranspiration rates of 4-6 mm per day, the crop may experience water stress, if there is no rain for a period of 5 days or more. The rate of crop growth was drastically reduced when siol water potential decreased below - 0.5 bar. The total water used by the crop during 117 days from sowing to harvest was 486 mm, of wich 345 mm transpired ttrough the plants. Crop water use eficiency was 353g of water per gram of dry matter. |
Agricultural Meteorology, 12. Water use, energy balance and Growth of maize at Samaru, northein Nigeria [texte imprimé] / Kowal, J. M. ; Kassam, A. H. . - 1973. ISSN : CI-04502 Energy and water budget of maize crop grown in a dry sub-humid climate of northen Nigeria were assessed and related to crop performance. The pattein ofcrop water availability. The period of maximum water requierements by the crop occured when the leaf area index was greater than 2.1 and coincided with the period when the amount and frequency of rainfall was greatest. However, undr the prevailing climatic conditins, with potential evapotranspiration rates of 4-6 mm per day, the crop may experience water stress, if there is no rain for a period of 5 days or more. The rate of crop growth was drastically reduced when siol water potential decreased below - 0.5 bar. The total water used by the crop during 117 days from sowing to harvest was 486 mm, of wich 345 mm transpired ttrough the plants. Crop water use eficiency was 353g of water per gram of dry matter. Langues : Anglais ( eng)
| Mots-clés : |
Utilisation de l'eau Equilibre énergétique Croissance du maïs Observation météorologique |
| Index. décimale : |
630 Agriculture et techniques connexes |
| Résumé : |
Energy and water budget of maize crop grown in a dry sub-humid climate of northen Nigeria were assessed and related to crop performance. The pattein ofcrop water availability. The period of maximum water requierements by the crop occured when the leaf area index was greater than 2.1 and coincided with the period when the amount and frequency of rainfall was greatest. However, undr the prevailing climatic conditins, with potential evapotranspiration rates of 4-6 mm per day, the crop may experience water stress, if there is no rain for a period of 5 days or more. The rate of crop growth was drastically reduced when siol water potential decreased below - 0.5 bar. The total water used by the crop during 117 days from sowing to harvest was 486 mm, of wich 345 mm transpired ttrough the plants. Crop water use eficiency was 353g of water per gram of dry matter. |
| Note de contenu : |
Energy and water budget of maize crop grown in a dry sub-humid climate of northen Nigeria were assessed and related to crop performance. The pattein ofcrop water availability. The period of maximum water requierements by the crop occured when the leaf area index was greater than 2.1 and coincided with the period when the amount and frequency of rainfall was greatest. However, undr the prevailing climatic conditins, with potential evapotranspiration rates of 4-6 mm per day, the crop may experience water stress, if there is no rain for a period of 5 days or more. The rate of crop growth was drastically reduced when siol water potential decreased below - 0.5 bar. The total water used by the crop during 117 days from sowing to harvest was 486 mm, of wich 345 mm transpired ttrough the plants. Crop water use eficiency was 353g of water per gram of dry matter. |
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