主要的约束包括农业基础设施差，产品市场低效，信贷不足，土地贫瘠，劳动力市场不景气等。
Key constraints include poor physical infrastructure, inefficient product markets, lack of credit, and weak land and labor markets.
这是农业贷款的主要约束，因为农夫们无法抵押自己的土地以换取购置作物种籽的贷款。
That's a major constraint on farm borrowing as farmers cannot mortgage their land in exchange for loans, for instance to buy seeds to plant.
这一多边系统是具有法律约束力的《粮食和农业植物遗传资源国际条约》的组成部分，该条约于2004年生效并已得到115个国家的批准。
The Multilateral System is part of the legally-binding International Treaty on Plant Genetic Resources for Food and Agriculture that entered into force in 2004 and has been ratified by 115 countries.
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