黄河故道滨海中低产田耕作与增施有机肥对土壤性状及稻-麦周年产量的短期影响

顾克军,顾东祥,张斯梅,张传辉,张恒敢,吴晶晶,樊平声

Short-Term Effects of Tillage and Organic Fertilizer Application on Soil Characters and Annual Rice-Wheat Yield in Coastal Low- and Medium-Yield Farmland of the Old Yellow River

Kejun Gu,Dongxiang Gu,Simei Zhang,Chuanhui Zhang,Henggan Zhang,Jingjing Wu,Pingsheng Fan

表2 稻-麦轮作不同耕作方式下水稻季收获期土壤养分状况（2018年）

Table 2 Soil nutrient status of rice at harvest stage under different tillage patterns in rice-wheat rotation system (2018)

处理 Treatment 容重 Bulk density (g/cm3) 土壤质量含水率 Soil moisture content (%) 土壤空隙度 Soil porosity (%) 土壤三相比R值 Ratio of soil solid- liquid-gaseous 有机质含量 Organic matter content (g/kg) 碱解氮含量Alkali nitrogen content (mg/kg) 速效磷含量 Available phosphorus content (mg/kg) 速效钾含量 Available potassium content (mg/kg) RW1 - - - - - - - - RW2 1.21a 25.12a 54.45a 7.2b 6.37b 55.0ab 4.30a 82.8a RW3 1.27a 24.78a 52.18a 3.6a 4.96a 46.9ab 5.71c 83.1a RW4 1.33a 28.51ab 49.99a 4.4a 6.60b 45.0a 4.37a 108.0b RW5 1.20a 30.77b 54.72a 7.1b 7.64c 61.2b 5.00b 127.3c