Asian Science Citation Index is committed to provide an authoritative, trusted and significant information by the coverage of the most important and influential journals to meet the needs of the global scientific community.  
ASCI Database
308-Lasani Town,
Sargodha Road,
Faisalabad, Pakistan
Fax: +92-41-8815544
Contact Via Web
Suggest a Journal
 
Articles by V.B. Muthukumar
Total Records ( 3 ) for V.B. Muthukumar
  L. Gurusamy , K. Omar Hattab , P.S. Vijayakumar , S. Suganya and V.B. Muthukumar
  A field experiment was conducted in loamy sand soils of Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal, Union Territory of Pondicherry, India to find out the rice performance under two different soil conditions by raising sesame in previous season and without it, during the year 2004-05 in two consecutive seasons in a Factorial Randomized Block Design (FRBD). The field was divided into 60 plots and in the summer season sesame was raised in 30 plots and the other 30 plots were kept fallow. In the next season (Kharif), rice was raised in all the 60 plots of two different situations viz., with sesame as previous crop (Situation I) and without sesame as pervious crop (Situation II) with two rice cultivars viz., ADT 38 and KR 99001 and five levels of nitrogen viz., 0, 50, 100, 150 and 200 kg N ha-1. The uptake of Nitrogen (N), phosphorus (P) and potassium (K) by sesame was 30.4, 10.2 and 26.3 kg ha-1, respectively, resulted in soil available N, P and K loss of 37.0, 19.8 and 29.0 kg ha-1, respectively. The N and K uptake was equal under both situations at Active Tillering (AT) and Panicle Initiation (PI) but P was accumulated more in situation II in the stage AT but comparable at PI. This might be due to initial low requirement of nutrients met by inorganic sources and later situation I managed the nutrient lost in previous season with mineralization process, whereas the P, though applied as basal, might not be fully available in the initial stages itself and might have been fixed. The nutrient uptake by straw was higher in situation II owing to higher dry matter production and grain uptake was comparable because grain nutrient content is genetic character, not much influenced by management practices. The efficiency parameters (agronomic efficiency, physiological efficiency, harvest index and apparent N recovery) were found to be higher in situation I over situation II and they were more pronounced at lower levels of N.
  N. Thavaprakaash , K. Velayudham and V.B. Muthukumar
  Field experiments were conducted during late rabi 2002 and 2003 seasons at Eastern Block farm of Tamil Nadu Agricultural University, Coimbatore, India. The texture of the experimental fields is sandy clay loam. The experiments were laid out in split plot design. Two factors viz., crop geometry (45x25 cm (S1) and 60x19 cm (S2)) and intercropping systems (Baby corn alone (C1), Baby corn + radish (C2), Baby corn + coriander (C3)) were taken in main plots and four INM practices (100% recommended NPK alone (N1); 50% NPK + FYM + Azospirillum + phosphobacteria (N2); 50% NPK + poultry manure + Azospirillum + phosphobacteria (N3) and 50% NPK + goat manure + Azospirillum + phosphobacteria (N4)) were assigned to sub plots. The experimental results revealed that baby corn and fodder yields were higher at 60x19 cm spacing level as compared with S1. Intercropping systems did not influence on baby corn and fodder yields. The treatments N3 and N4 registered higher baby corn and fodder yields than N1 and N2. Neither crop geometry nor intercropping systems did influence on fodder quality of baby corn. All the three INM practices (N2, N3 and N4) recorded higher values of quality parameters than N1. However, N3 and N4 values were significantly higher than N2.
  L. Gurusamy , K. Omar Hattab , N. Gunasekhar , P.S. Vijayakumar and V.B. Muthukumar
  A field experiment was conducted in loamy sand soils to study the impact of sesame crop on the dry matter production, nutrient uptake and yield of succeeding rice crop during the year 2004-05 in two consecutive seasons in a Factorial Randomized Block Design (FRBD). The field was divided into 60 plots and in the Summer season, sesame crop was raised in 30 plots and the other 30 plots were kept fallow. In the next season (Kharif), the rice crop was raised in all the 60 plots of two different situations viz., with sesame as previous crop (Situation I) and without sesame as pervious crop (Situation II) with two rice cultivars viz., ADT 38 and KR 99001 and five levels of nitrogen (N) viz., 0, 50, 100, 150 and 200 kg N ha-1. The Dry Matter Production (DMP) at Active Tillering (AT) stage was high in situation II over situation I and not so at Panicle Initiation (PI) stage, might be due to low nutrient status at AT caused by previous season sesame crop’s removal, might be overcomed at PI by the nutrient addition from mineralizing sesame stubbles. The variation in the situations did not bring any significant variation in grain yield, but slightly higher yield was noticed in situation II over situation I. Both ADT 38 and KR 99001 manifested higher yields at 150 kg N ha-1 in both the situations revealed the fact that this level of N is sufficient for better growth and development of rice crop. The straw yield was comparable in both the situations. The nitrogen and potassium (K) uptake was equal under both the situations at AT and PI but phosphorous (P) was accumulated more in situation II at AT but comparable at PI. This might be due to initial low requirement of nutrients met by inorganic sources and later the situation I managed the nutrients lost in previous season with mineralization process, whereas the phosphorous, though applied as basal might not fully available in the initial stages itself, might be fixed. The nutrient uptake by straw was higher in situation II owing to higher DMP but grain uptake was comparable because of genetic nature.
 
 
 
Copyright   |   Desclaimer   |    Privacy Policy   |   Browsers   |   Accessibility