हमारा समूह 1000 से अधिक वैज्ञानिक सोसायटी के सहयोग से हर साल संयुक्त राज्य अमेरिका, यूरोप और एशिया में 3000+ वैश्विक सम्मेलन श्रृंखला कार्यक्रम आयोजित करता है और 700+ ओपन एक्सेस जर्नल प्रकाशित करता है जिसमें 50000 से अधिक प्रतिष्ठित व्यक्तित्व, प्रतिष्ठित वैज्ञानिक संपादकीय बोर्ड के सदस्यों के रूप में शामिल होते हैं।
ओपन एक्सेस जर्नल्स को अधिक पाठक और उद्धरण मिल रहे हैं
700 जर्नल और 15,000,000 पाठक प्रत्येक जर्नल को 25,000+ पाठक मिल रहे हैं
Umeri C, Moseri H and Onyemekonwu RC
The study was carried out in Delta State, Nigeria. Soil samples were collected from nine locations within Delta State namely Agbor, Asaba and Ubulu-uku (Delta North), Abraka, Oghara-Eki, Sapele (Delta Central), Oleh, Ozoro, Patani (Delta South). Surface soils (0-15 cm) and sub-surface soils (15-30 cm) depth. These were analyzed for their physical and chemical properties. In one of the locations (Agbor) found to be deficient in nitrogen (N) and phosphorus (P) field trials on the effects of these nutrients on the performance of maize (Zea mays) were carried out. The variety ACR-89DMRESR-W was used. The design was a 4 × 4 factorial scheme fitted into a randomized complete block design given sixteen treatments combinations with three replicates. The following treatments combinations were applied N0P20kg/ha, N0P40kg/ha, N0P6okg/ha, N20P0kg/ha, N20P20kg/ha, N20P40kg/ha, N20P60kg/ha, N40P0kg/ha, N40P20kg/ ha, N40P40kg/ha, N40P60kg/ha, N60P0kg/ha, N60P20kg/ha, N60P40kg/ha, and N60P60kg/ha. The parameter measured were plant height and leaf number at 3, 6 and 9 weeks after planting (WAP), respectively. Combined application of 40 kgN/ha+40 kgP/ha significantly increased maize plant height and leaf number among all the treatments. Therefore combined application of 40 kgN/ha+40 kgP/ha is recommended for optimum growth of maize in the study area.