Figure 2. Effects of different chicken mature Cu and Zn contents in the upper ground/underground part of corn field at the second crop stage

From

Responses of Maize (Zea mays L.) Protein Starch Content, Municipal sludge and Different Chicken Manure on Calcareous Brown Soil Seedling in Shanxi Province China

Haixia Zheng, Yu Feng, Qingrong Zheng, Zhengming Luo, Yanjun Hou, Yushan Bu, Hafeez Noor

Journal of Food and Nutrition Research. 2022, 10(10), 630-641 doi:10.12691/jfnr-10-10-1