5.By potting under greenhouse conditions, compared with prometryn and atrazine, the security of terbuthylazine to cotton, maize and peanut was studied.
6.The results showed that NO could completely reverse the inter-veinal chlorosis induced by iron deficiency and increase chlorophyll content in the leaves of maize seedlings.
7.The paper analyzes the soil water dynamics and water requirement law of alfalfa,feed maize and ensile maize under 3 kinds of water-saving irrigation conditions through experimental study on the crops.