摘要
以耕型砂岩红壤开辟的新稻田为供试土壤，以杂交水稻——华联二号为供试作物，研究了新辟红壤性稻田不同施钾水平对早、晚稻的生育和营养特性、产量及土壤供钾能力的影响，并由此提出了新辟红壤性稻田早、晚稻的适宜施钾量。
Two plot experiments were performed to examine the effects of varying K-fer-tilization rates on the growth,nutrient uptake and rice yield of rice plant,and soil K-supply-ing ability of the new- cultivated paddy field reclaimed from sandstone in Jiangyong County,Southern Hunan Province. According to the results obtained,the reasonable K fertilizationrates are recommanded for early rice and later rice in new-cultivated paddy field, respective- ly.
关键词
水稻土
红壤
耕作土壤
改良
钾肥
paddy soil, krasnozem, cultivational amelloration, potassium fertiliaer
