7.By potting under greenhouse conditions, compared with prometryn and atrazine, the security of terbuthylazine to cotton, maize and peanut was studied.
9.The effects of undecomposable organic materials mixed with biopreparate on the physical and chemical properties of continuous cropping greenhouse soil were studied.
10.Thermokarst failures occur when permafrost—a layer of frozen soil in Earth's polar regions—thaws and becomes unstable, possibly releasing greenhouse gases into the atmosphere.