Publication Date

1985

Location

Kyoto Japan

Description

Investigations on the effect of anhydrous ammonia and nitrifying inhibitor on qualitative and quantitative indices of stand formation have been carried out during 4 years in the irrigated pasture with grass stand established on the drylands with sod-podzolic soils. The positive effect of anhydrous ammonia on pasture productivity had been determined: on an average for 4 years dry matter yield increased compared to PK by 1.6 times and protein - by 2.2 times. When applying anhydrous ammonia together with nitrifying inhibitor dry matter yield increased by 1.9 times compared to PK by 16 % relative to NH3PK, protein - by 2.7 times and by 24%, respectively. Under the influence of nitrifying inhibitor payback of ammonia by yield gain rose from 15.4 to 21.7 kg of dry matter and from 3.9 to 5.6 kg of protein per 1 kg of nitrogen. Systematical applying of anhydrous ammonia in combination with complete mineral fertilizers enriched the pasture forage with protein and prolonged the duration of the production period of sown grasses.

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Effect of Anhydrous Ammonia (NH3) and Nitrifying Inhibitor on Productivity of Grass Pastures

Kyoto Japan

Investigations on the effect of anhydrous ammonia and nitrifying inhibitor on qualitative and quantitative indices of stand formation have been carried out during 4 years in the irrigated pasture with grass stand established on the drylands with sod-podzolic soils. The positive effect of anhydrous ammonia on pasture productivity had been determined: on an average for 4 years dry matter yield increased compared to PK by 1.6 times and protein - by 2.2 times. When applying anhydrous ammonia together with nitrifying inhibitor dry matter yield increased by 1.9 times compared to PK by 16 % relative to NH3PK, protein - by 2.7 times and by 24%, respectively. Under the influence of nitrifying inhibitor payback of ammonia by yield gain rose from 15.4 to 21.7 kg of dry matter and from 3.9 to 5.6 kg of protein per 1 kg of nitrogen. Systematical applying of anhydrous ammonia in combination with complete mineral fertilizers enriched the pasture forage with protein and prolonged the duration of the production period of sown grasses.