Combined application of nitrogen and phosphorus

quantity of nitrogen and phosphorus application

Rate of nitrogen fertilizer application

Application of Nitrogen fertilizer

combined application of nitrogen and potassium

irrigation and nitrogen fertilizer application

Keeping constant application rate of phosphorus by monitering soil available-P

methods of nitrogen fertilizer application

Nitrogen fertilizer application rate

optimal application rate of fertilizer N

Rate of application of results

Rate of fertilizer application

Reducing application of nitrogen fertilizer

regional load rate of fertilizer application

split application of nitrogen fertilizer

The stage of nitrogen fertilizer application

variable rate application of fertilizer

vertical stratified application of fertilizer and

recommended rate of fertillizer application