Research Status and Development Suggestions of Precision Variable-rate Fertilization Machine

As an important component of modern chemical fertilizer reduction and efficiency increase key technologies，precision variable-rate fertilization can fully balance fertilizer application amount according to local conditions.It has important significance to the development of grain production safety and high-efficiency agriculture.Considering requirements for application of precision variable-rate fertilization machine，the overview of precision variable-rate fertilization technology was illustrated.The technical features and application statuses of variable-rate fertilization machines were analyzed.Development suggestions of precision variable-rate fertilization technology were expected clearly based on requirement of sustainable agricultural development，which provided some references for related research.