Field experiments were carried out

Field experiments were carried out at Central Tuber Crops Research Institute, Kerala, India, during three seasons (2009-2012) to investigate the response of cassava to precision approaches in irrigation and fertigation. The experiments were laid out in split plot design with three replications. The main plots included three levels of drip irrigation viz., (I
1
- irrigation at 100% pan evaporation (PE); I
- 80% PE and I
- 60% PE). The sub plots comprised three fertigation schedules viz., three ratios of recommended N and K fertiliser doses (100:100 kg ha
3
) applied at growth stages of 1-40 days, 4080 days and 80-120 days (F
1
- 50,30,20; F
2
-1
- 30,50,20 and F
- 50,40,10). Minisetts of cassava variety Sree Vijaya were planted at a distance of 60 x 45 cm during the dry spell (December-May) in all the years. Results indicated that irrigation at 100% PE yielded maximum tuber yield in all the seasons (43.9 t ha
-1
3
). There was no significant difference in yield among the fertigation schedules. However, interaction effects showed that I
1
F
resulted in better growth characters, yield attributes and yield followed by I
and I
3
Journal of Root Crops, 2013, Vol. 39 No. 2, pp. 100-104 Indian Society for Root Crops ISSN 0378-2409
1
F
3
1
. On an average, 280 mm, 224 mm and 168 mm of water were applied in I
irrigation levels respectively during the growing season. Water use efficiency was also higher for irrigation at I
1
level of irrigation.
Key words: Cassava, drip irrigation, fertigat

ผลลัพธ์ (แอฟริกา) 1:

Veldeksperimente uitgevoer is by Central knolgewasse Navorsingsinstituut, Kerala, Indië uitgevoer, tydens drie seisoene (2009-2012) om die reaksie van cassava presisie benaderings in besproeiing en bemesting ondersoek. Die eksperimente is uitgevoer in split plot ontwerp gelê met drie herhalings. Drie vlakke van die Main erwe ingesluit BESPROEIING Drip naamlik, (I.
1
- Besproeiing teen 100% Pan verdamping (PE), ek
- 80% PE en ek
- 60% PE). Sub erwe bestaan ​​die Drie Sproeibemestingmetode skedules naamlik, Drie Aanbevole verhoudings van N en K Kunsmis dosisse. (100: 100 kg ha
3) Toegepaste stadiums van groei op 1-40 dae, 4080 dae en 80-120 dae (F 1 - 50 ,. 30,20; F 2 -1 - 30,50,20 en F - 50,40,10). Minisetts van cassava verskeidenheid Sree Vijaya geplant op 'n afstand van 60 x 45 cm tydens die droë spel (Desember-Mei) in al die jare. BESPROEIING resultate dui daarop dat 100% PE Tuber opgelewer maksimum opbrengs in al die seisoene (43,9 T ha -1 3). Daar was geen beduidende verskil in opbrengs tussen die sproeibemesting skedules. Maar interaksie effekte wat Ek laat 1 F tot beter groei karakters, opbrengs en ​​opbrengs eienskappe gevolg deur I en ek 3 Journal of wortel gewasse, 2013th, Vol. 39 No. 2, pp. 100-104 Indiese Vereniging vir Wortelgewasse 0378-2409 ISSN 1 F 3 1. Op 'n gemiddelde, 280 mm, 224 mm en 168 mm Toegepaste Water was in I BESPROEIING vlakke onderskeidelik gedurende die seisoen. Watergebruik doeltreffendheid was ook hoër vir besproeiing ek by 1 vlak van besproeiing. Sleutelwoorde: Cassava, besproeiing drup, Fertigat.