Agronomic traits and productivity of sweet corn affected by nitrogen and intercropping
1999
Akhtar, M. (National Agricultural Research Centre, Islamabad (Pakistan). Sugar Crops Programme) | Silva, J.A.
An experiment was conducted at the Waimanalo Research Station of the University of Hawaii, Honolulu, to study the effect of nitrogen and inter-cropping on agronomic ends and productivity of sweet corn, during 1993-94. Sweet corn was planted as a sole crop and as an inter-crop in between sugarcane rows at N levels of 0, 75, 150 and 300 kg ha-1. The results of the study indicated that cropping system did not affect number of ears plant-1, fresh weight ear-1, and number of grains ear-1. Total fresh weight of ears ha- 1, was higher in inter-cropped corn. Ears plant-1, in both cropping systems were the maximum at 300 kg N ha-1. Fresh weight ear-1 increased significantly up to 150 kg N ha-1 in sole sweet corn and up to 300 kg N ha-1 in inter-cropped sweet corn. Grains ear-1 were similar at various applied N levels in sole corn, whereas, in inter-cropped sweet corn it increased with increasing N levels. Total fresh weight of ears ha-1 was the maximum at 300 kg N ha-1 (16.41 t ha-1 in sole crop and 21.11 t ha-1 in inter-cropped sweet corn).
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