In Shandong, Jilin and Hebei, alfalfa yield improved after applying calcium phosphate or single superphosphate at 100–200 kg·ha−1 where soil pH is 7–8.

Claim · model-written summary

In Shandong, Jilin and Hebei, alfalfa yield improved after applying calcium phosphate or single superphosphate at 100–200 kg·ha−1 where soil pH is 7–8.

Taxon

alfalfaMedicago sativae1

Treatment

calcium phosphate or single superphosphate with a P2O5 content of 0–20% at a rate of 100–200 kg·ha−1e1

Outcome

alfalfa yielde1

Direction

improvede1

Qualifier

where the soil pH is 7–8e1

Setting

Shandong, Jilin, and Hebeie1

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorValue

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim

e1

“In Shandong, Jilin, and Hebei, where the soil pH is 7–8, annual precipitation is 200–400 mm, annual mean temperature is above 4 °C, and altitude is 500–1000 m, alfalfa yield improved after applying calcium phosphate or single superphosphate with a P2O5 content of 0–20% at a rate of 100–200 kg·ha−1, along with nitrogen > 100 kg·ha−1, and when both the test and establishment periods were 2 years”