Effects of planting date and fertilizer dose on plant growth attributes and nutrient uptake of potato (Solanum tuberosum L.)

A. S. Sandhu ； S. P. Sharma ； R. D. Bhutani ； S. C. Khurana

《International Journal of Agricultural Sciences》 4卷5期 (2014/05) Pp. ii+196-202

並列摘要

Potato is a high input intensive and a shallow rooted crop which requires an efficient cropping management to ensure adequate nutrient uptake to attain optimum crop growth. The experiment was conducted with four planting dates (22^(nd)October, 1^(st), 11^(th) and 21^(st)November) and four fertilizer rates viz. 75, 100, 125and 150% of recommended fertilizer dose (RFD; 150:50:100 kg ha^(-1) of NPK) in the region for optimum productivity in a randomized complete block design with three replications. Data was recorded on plant height, leaf, and stem weight, and leaf area index and NPK uptake. Planting date had significant effect on all vegetative characteristics and recorded the highest values at 1^(st) November planting date and lowest in 21^(st) November planting date. Maximum uptake of nitrogen, phosphorus and potassium by leaves, stems and tubers was also observed at 1^(st) November planting date. Plant height, leaf area index, leaf and stem weight increased with increase in fertilizer dose. Thus, the results of this study suggested that optimum planting time (1^(st) November) is very critical for maximum nutrient uptake of the applied fertilizer dose to the potato crop under semi-arid conditions.

並列關鍵字

Nitrogen ； nutrient uptake ； phosphorous ； planting date ； potato ； potassium