What is the fine-grained topic of the following text: The company has a quality control of the highest level: a laboratory specialized in germination tests where each batch of seeds is tested several times during the year; a vast trial field where more than 500 batches of seeds are sown and harvested each year; accurate and repeated checks in the production fields; automated packaging procedures performed with state-of-the-art machinery and under the strict supervision of highly qualified technicians. Only return the topic.
Quality control procedures in a seed company