【摘要】 提出了通过交换树脂和数码相机来获取土壤肥力及作物长势、长相参数的方法。结果表明,树脂袋解吸出的速效N与土壤中的速效N间有较好的相关性;数码技术采集的作物生长发育信息(叶色指数)与土壤速效氮含量之间也有良好的相关性;结果还表明,水稻产量在一定范围内和生长发育信息成正相关。更多还原

【Abstract】 Parameters of rice N-nutrition and ricegrowing status were obtained with exchangeable resin and digital camera.Results indicated that the available-N from resin sack correlated with that from soil and crops growth information collected from digital camera(indices of leaf color) correlated with the content of available-N in soil.Rice yield correlated with its growth information positively in certain range.更多还原