Evaluation of the effectiveness of intercropping some agricultural crops with Hawthorn Docynia indica at stage 2
INTRODUCTION Son La is a province in the Northwest mountainous region of Vietnam, with an average altitude of 600 - 700m above sea level. The natural area of the province is 1,417,444 ha, of which agricultural land is 247,684 ha, accounting for 30.09%; Son Las climate is characterized by a ...