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- W2588343126 abstract "Long-term potassium (K) fertilization effects on rice and soil were studied under rice-rice system at Bangladesh Rice Research Institute farm, Gazipur during 2003 to 2010. Potassium rates (0, 40 and 80 kg ha-1) were assigned in a randomized complete block design with three replications. Native K maintained grain yield of 3.25 and 3.07 t ha-1 in dry and wet season, respectively. Potassium application @ 40 and 80 kg K ha-1 significantly increased grain yield in both season. In dry season, recovery efficiency (RE), agronomic efficiency (AUE) and partial factor productivity (PFP) was decreased when K rate was increased from 40 to 80 kg ha-1. The RE in wet season was increased while AUE and PFP were decreased with increased K rate. In the top 80 cm of the soil, K application significantly increased all fractions of soil K and leaching of K to sub-surface. Potassium omission plot experienced the highest loss in soil available K and non-exchangeable K while application of 80 kg K ha-1 considerably decreased the loss of those K pools. Rice crops removed K in excess of 31.98 and 8.83 kg ha-1 per year from 40 and 80 kg K ha-1, respectively treated plots." @default.
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- W2588343126 date "2016-11-04" @default.
- W2588343126 modified "2023-09-27" @default.
- W2588343126 title "Potassium fertilization in intensive wetland rice system: Yield, potassium use efficiency and soil potassium status" @default.
- W2588343126 hasPublicationYear "2016" @default.
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