This procedure specifies production area environment, production technology, prevention and control of plant diseases and insect pests, and production files of pollution-free foods by taking tomato as an example. This procedure is applicable for greenhouse production of pollution-free food in...

In the theory and practice of training and competition activities, an important role in the effectiveness of the attack phase is played by the passingprocedures. Knowing, from previous records the significant negative involvement of the number of passes sent outside the field in the result of...