条件筛选
-
How to collect soil testing samples? A detailed guide to the self-sampling method for farmers
Since the soil testing and formula fertilization subsidy project was launched in 2005, it has now entered the stage of promoting formula fertilizers based on regional grand formulas. To put soil testing and formula fertilization technology into practice in farmland and orchards, make good "small adjustments" according to local conditions, accurately collect soil samples, and accumulate the big