Nutrients enhance genotype and water responses in rainfed lowland rice in Lao PDR

Published: 14 March 2022| Version 1 | DOI: 10.17632/3v2ztchthg.1
Len Wade


This data set relates to the manuscript by Sengxua et al (2022) to be published in the new Elsevier journal Crop and Environment on 31 March 2022. The manuscript explores nutrient responses in rainfed lowland rice, and the need to improve the soils to facilitate a more reliable fertilizer response. The experimental design comprised 20 on-farm Environments x 12 Treatments x 3 Replicates = 720. Environments comprised 2 Years x 2 Provinces x 5 Districts per Province = 20. Treatments comprised 2 Water x 2 Fertilizer x 3 Genotype = 12. There were 3 Replicates, with 3 Farms per District used as Replicates = 3. Years (Year): 1 = 2009, 2 = 2010. (Districts 1-10 are 2009, and Districts 11-20 are 2010). Provinces (Prov): 1 = Champassak (CPK), 2 = Savannakhet (SVK). (Districts 1-5 and 11-15 are CPK, and 6-10 and 16-20 are SVK). Districts 1-10 in 2009 were Nalak, Nakeo, Songnoy, Oupalard, Phonesavanh, Phintay, Nachan, Nadeua, Nongdeuan, Phorntarn; (The same in 2010, except Songnoy was replaced by Houayyang, and Phonesavanh was replaced by Nasomvang). Water (Water): 1 = Nil, 2 = supplementary watered Fertilizer (Fert): 1 = Nil, 2 = NPK Genotype (Geno): 1 = TDK, 2 = TSN, 3 = PNG Replicate (Rep): 1, 2, 3 Tillers (m-2): Number of tillers per square metre Panicles (m-2): Number of panicles per square metre Fertiles (%): Percentage of panicles which had grain Sterility (%): Percentage of spikelets which had no grain Harvest index: Ratio of grain yield to dry matter Dry matter (kg ha-1): Total dry matter at maturity in kilograms per hectare Grain yield (kg ha-1): Grain yield at maturity in kilograms per hectare at 14% moisture M = Missing data See Sengxua et al. (2022). Nutrients enhance genotype and water responses in rainfed lowland rice in southern Lao PDR. Crop and Environment (in press).


Steps to reproduce

Full methodology is provided in Sengxua et al (2022) Crop and Environment (in press).


University of Queensland


Fertilizer, Rice, Genotype, Water, Southeast Asia, Food Security, Laos, Farming Systems, Ordination, Agroecosystem Risk, Chemical Fertilizer, Organic Fertilizer, Cluster Analysis, Soil Organic Carbon, Soil Nutrients