Organic standards require management practices that prevent pests, such as removal of pest habitat, food sources, breeding areas, and prevention of access to processing facilities.
有机标准要求采取措管理性施防治虫害，如清除害虫栖息地、切断食物来源和破坏繁殖地区，或阻止害虫进入处理设施。
It was suggested to the aims, standards of selection the base and later periods material, methods of the super-maize breeding.
总结提出了超级玉米育种的各种具体目标、选择基础材料与杂交后代的标准及提高育种效率的超级玉米育种方法。
Article15any animal farm should exterminate animal epidemics in time. stud stock and breeding poultry shall be kept healthy up to the standards set by the state.
第十五条动物饲养场应当及时扑灭动物疫病。种畜、禽应当达到国家规定的健康合格标准。
Article 15 any animal farm should exterminate animal epidemics in time. Stud stock and breeding poultry shall be kept healthy up to the standards set by the state.
第十五条动物饲养场应当及时扑灭动物疫病。种畜、种禽应当达到国家规定的健康合格标准。
Stud stock and breeding poultry shall be kept healthy up to the standards set by the state.
种畜、种禽应当达到国家规定的健康合格标准。
The selection and application of the cross-breeding original materials for cut-flower chrysanthemum and standards for good characters of cut-flower chrysanthemum are also discussed.
还对切花菊育种原始材料的选择和应用、切花菊优良性状标准等问题进行了探讨。
The selection and application of the cross-breeding original materials for cut-flower chrysanthemum and standards for good characters of cut-flower chrysanthemum are also discussed.
还对切花菊育种原始材料的选择和应用、切花菊优良性状标准等问题进行了探讨。
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