Regulation effects of water and nitrogen on potato dry matter and nitrogen accumulation and partitioning
Journal Title: Journal of Agricultural and Crop Research - Year 2018, Vol 6, Issue 6
Abstract
In order to maximize potato tuber yield and nitrogen uptake, it is important to optimize the management practices related to dry matter (DM) and nitrogen (N) accumulation and partitioning. To evaluate the effects of water and N level on DM and N accumulation and partitioning during the tuber bulking stage in the potato, a pot experiment was conducted with three water levels (90%, 70%, and 50% of field capacity) and three N levels (0, 85.5 and 171 kg N ha-1). The results showed that potato tuber yield and tuber N uptake were significantly affected by the water levels, N levels, and the interaction between water and N. Under the watered and moderate N conditions (90% of field capacity and 85.5 kg N ha-1), the tuber yield and N uptake were the highest. Watered conditions, moderate N conditions, and the watered combined with moderate N condition increased the tuber yield and tuber N uptake by increasing the accumulation of total DM and N in the plant, while not by increasing the partitioning of DM and N to tubers. Therefore, these results suggest that optimizing water and N management to improve DM and N accumulation is the key to ensuring high tuber yield and N uptake in the potato.
Authors and Affiliations
Li Wen-ting, Wang Shi-wen, Deng Xi-ping, Yin Li-na
The effects of dietary supplementation levels of valine on performance and immune System of broiler chickens
The aim of this work was to evaluate the effects of adding different levels of valine in broiler diets on broiler performance, weights of immune system organs, that is, thymus, bursa of Fabricius and spleen. Also, measur...
Evaluating the CERES-Rice model under dry season irrigated rice in Bangladesh: Calibration and validation
Crop Environment Resource Synthesis-Rice (CERES-Rice) model was calibrated and validated for major rice varieties suitable for growing in the dry season. Yield performances for BRRI dhan28, BRRI dhan29 and BRRI dhan58 we...
Effect of fruit ripeness status and netting on the germination and early growth of Dennettia tripetala G. Baker seedlings
Dennettia tripetala, an important medicinal and socio-cultural fruit crop in Nigeria has germination and early growth problems. This study set out to investigate fruit ripeness status and appropriate growing environment...
Identification of the best management options for the rice quality processing centers: Case of Cameroon
A study was conducted in 2011 immediately after the installment of quality processing centers in Cameroon, Chad and Central African Republic where the CFC implemented a pilot project on rice productivity and quality enha...
Regulation effects of water and nitrogen on potato dry matter and nitrogen accumulation and partitioning
In order to maximize potato tuber yield and nitrogen uptake, it is important to optimize the management practices related to dry matter (DM) and nitrogen (N) accumulation and partitioning. To evaluate the effects of wate...