One Question per Day on the Basic Knowledge of Compound Fertilizers and Functional Fertilizers – 127

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This post was last edited by Chemical Gas Purification on 2012-1-14 09:30. Multiple-choice question: What issues should be taken into account when promoting the use of microbial fertilizers? Which of the following statements are correct? ( ) (1) Microbial fertilizers that have not obtained a **registration certificate cannot be promoted. (2) Microbial fertilizers whose effective viable cell count does not meet the standards must not be used under any circumstances. (3) Microbial fertilizers that have been stored for longer than their expiration date should not be used. (4) Storage conditions and usage methods must be strictly followed as specified. The compound fertilizer and functional fertilizer sections carry out a daily quiz on basic production knowledge. We hope that all sea friends will participate actively. The purpose of this activity is to review the knowledge we have already learned, and to improve and strengthen everyone’s fundamental theoretical knowledge through answering questions, thereby reinforcing what we already know and helping us recall what we have forgotten. The top 50 answerers will definitely receive a reward. Please reply with the answer hidden; otherwise it will be invalid. To view the hidden method, go to: http://bbs.hcbbs.com/thread-492556-1-1.html. Please do not edit after replying! The correct answer is 1.3.4; the recommendation in point 2 is that it should not be used, but this does not mean it cannot be used at all – it can be used, though it will not yield ideal results