Comparative Study of Maize Agronomics Performance under low Nitrogen Soil Availability, in Southern Savanna of DR Congo

Author Biographies

Jean Pierre Kabongo Tshiabukole

National Maize Program National Institute for Agricultural Research (INERA/DRC),

Democratic Republic of the Congo

Gertrude Pongi Khonde

National Maize Program National Institute for Agricultural Research (INERA/DRC),

Democratic Republic of the Congo

Amand Mbuya Kankolongo

National Maize Program National Institute for Agricultural Research (INERA/DRC),

Democratic Republic of the Congo

Carcy Tshimbombo Jadika

National Maize Program National Institute for Agricultural Research (INERA/DRC),

Democratic Republic of the Congo

Roger Kizungu Vumilia

Université de Kinshasa; Direction scientifique, Expérimentation(INERA/DG/RDC),

Democratic Republic of the Congo

Main Article Content

Jean Pierre Kabongo Tshiabukole

Gertrude Pongi Khonde

Amand Mbuya Kankolongo

Carcy Tshimbombo Jadika

Roger Kizungu Vumilia

Published Dec 19, 2019

Abstract




To determine the growing and yield performance of low nitrogen tolerant maize varieties under fertilized and unfertilized conditions, a study was conducted at the Mvuazi Research Center. Nine varieties were tested with and without fertilizer using the micro-dosing method, following the randomized complete block design with two factors. The results showed a difference among varieties in both crop conditions. The average yield with fertilizer was higher than the yield without fertilizer. The varieties LNTP-W C4 and LNTP-Y C7 registered 5.9 t/ha and 3.6 t/ha respectively under fertilized crop conditions and 7.14t/ha and 7.12t/ha under unfertilized crop conditions. Thus, using Low-N can minimize production costs by improving the productivity of soils low in Nitrogen typical of conditions of the southwestern savanna.


KEY WORDS: LOW NITROGEN SOIL, LNTP, MAIZE PRODUCTION, FERTILIZER, SAVANNA, INERA-DRC





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