The present investigations were carried out to study the effects of different tillage systems on yield and yield contributing traits, using Randomized Complete Block Design. Two tillage systems i.e. conservation tillage and conventional tillage were used. Three principal components were sufficient to ...
A fast and convenient soil analytical technique is needed for soil quality assessment and precision soil management. The main objective of this study was to evaluate the ability of near-infrared reflectance spectroscopy (NIRS) to predict diverse soil properties. Near-infrared reflectance spectra, ...
Nine environmental covariates, related to the relief factor of soil formation, were derived from a digital elevation model and named the original variables, which were submitted to PCA and transformed into principal components (PC). The MLR were developed using the terrain attributes and the PC as...
SOIL chemistryPRINCIPAL components analysisBIOGEOCHEMICAL cyclesSTATISTICAL correlationION exchange resinsThe number of studies on the importance of Cerrado soil to biogeochemical cycles is growing, with this being the focus of most research in the Cerrado biome. The o...
Based on the investigation of grassland environment in the western Jilin Province,the physical and chemical characteristics and nutrient components in the soil were tested. The organic matter,Total N,Total P,Total K,Available N,Available P,Available K,ESP and pH value were chosen as main indexes...
Analysis of Heavy Metal Sources in Soil Using Kriging Interpolation on Principal Components. HOEHUN HA, JAMES R.OLSON, LING BIAN’et al.Analysis ofHeavy Metal Sources in Soil Using Kriging Interpolation on PrincipalComponents[J]. Environmental ... Hoehun,Ha,Olson,... - 《Environmental Science ...
1933-Analysis of a complex of statistical variables into principal components 热度: Subfield management class delineation using cluster analysis from spatial principal components of soil variables 热度: subfield management class delineation using cluster analysis from spatial principal components of soil...
Principal components analysis has been applied to the total microbial population numbers and to taxonomic groups and the physiological groups involved in t... MJ Acea,T Carballas - 《Soil Biology & Biochemistry》 被引量: 141发表: 1990年 Factor Analysis of the Impact of the Environment on Microb...
Principal components analysis of 16 soil organic matters' evaluation indexes was done by SAS software. The result showed that indexes could be classified i... JI Ming-Guang,XS Kong,SS Zheng - 《Journal of Heilongjiang August First Land Reclamation University》 被引量: 0发表: 2006年 Education ...
Comprehensive evaluation on peanut main quality traits can provide the basis for peanut quality breeding and production.Principal component and cluster on peanut quality traits were analyzed by using DPSS software.The results showed that the 10 traits were consolidated into 4 principal components which ...