黄土高原不同地点小麦籽粒矿质元素的含量差异

王丽,王朝辉,郭子糠,陶振魁,郑洺钧,黄宁,高志源,张欣欣,黄婷苗

Differences of Main Nutrient Concentration in Wheat Grain Between Typical Locations of the Loess Plateau

WANG Li,WANG ZhaoHui,GUO ZiKang,TAO ZhenKui,ZHENG MingJun,HUANG Ning,GAO ZhiYuan,ZHANG XinXin,HUANG TingMiao

表3 播前表层（0—40 cm）土壤的中、微量营养元素含量

Table 3 The test soil physical and chemical properties of medium and micronutrients in 0-40 cm soil layer at the beginning of the experiment

土层 Soil layer (cm)	地点 Site	中量元素Medium element			微量元素Microelement
土层 Soil layer (cm)	地点 Site	有效硫 Available S (mg·kg^-1)	交换性钙 Exch.-Ca (g·kg^-1)	交换性镁 Exch.-Mg (g·kg^-1)	有效铁 DTPA-Fe (mg·kg^-1)	有效锰 DTPA-Mn (mg·kg^-1)	有效铜 DTPA-Cu (mg·kg^-1)	有效锌 DTPA-Zn (mg·kg^-1)
0-20	永寿Yongshou	9.14a	36.9a	1.00b	5.48a	10.53a	1.13b	0.33b
0-20	杨凌Yangling	5.69a	36.6a	2.19a	5.26a	11.64a	1.25a	0.47a
20-40	永寿Yongshou	9.13a	37.1a	1.02b	5.99a	9.13a	1.23a	0.29a
20-40	杨凌Yangling	5.46a	37.6a	2.42a	5.63a	8.75a	1.44a	0.24a