Report on The Main Technology of Precision Agriculture Variable Fertilization and Experiment
Zhuang Wei-dong · Heilongjiang Bayi Nongken Daxue xuebao · 2004
In the fall of the year 2002, the soil samples were done in the precision agriculture test region of Youyi Farm in Heilongjiang with the index of soil fertility being analyzed. And it was therefore decided on how to prescribe for the variable fertilization of spring seeding soybeans in 2003. At R5 stage of soybeans, we had positioned the sites of different fertilization combination at random by GPS and investigated the growth for soybeans. The results showed that there were no significant differences between plant height andleafareaofsoybeans.