Nutrient spatial status of three soils in Shandong Province were studied with GPS locating system.Results showed that organic matter contents were widely low in most plough-land of Shandong Province and N nutritients of most lands were deficient after wheat harvest.Although there were some media and high-P plough-lands,but the available P levels were absolutely low; K nutrients were supplied adequately in plough-land of Shandong Province and there was no deficiency of potassium.The main nutritient factors which affected quality of plough-land in Shandong Province were available phosphorus and available potassium,then organic matter and alkali-hydrolyzable nitrogen.pH value had the lowest effect on quality of plough-land but soil acidification should be paid more attention.Thus,the production of main plough-lands of Shandong Province can be kept to improve the fertilizer manners and modify the fertilizer ratio adjusting measures to local conditions.
Nutritent contentSpatial variabilityThree soilsQuality of plough-landShandong province
国家科技期刊平台
NSTL
万方数据
