Примеры nitrogen

• These algal mats are said to be rich in phosphates, nitrogen, organic matter, and cation-exchange capacity.

• The high nutritional quality of the detrital organic matter in our study stream may result from grazing by tadpoles which enhances nitrogen fluxes.

• Is the productivity of organic farms restricted by supply of available nitrogen?

• Utilizing the nitrogen content of organic manures on farms-problems and practical solutions.

• Decline in soil organic carbon and total nitrogen in relation to tillage, stubble management and rotation.

• In addition, we recovered other embryos after storage of up to 18 months in liquid nitrogen to provide information on mutation during storage.

• Optimizing time distribution of water supply and fertilizer nitrogen rates in relation to targeted wheat yield.

• Real-time measures of canopy size as a basis for spatially varying nitrogen applications to winter wheat sown at different seed rates.