摘要:

The improvement of hill land is important to the national economy of the United Kingdom. An increase in the amount of enclosed productive land results in a greater stock‐carrying capacity of a hill farm. Improvement is not always possible by conventional implements, and herbicides are being used to kill the old sward. The bipyridyl herbicides offer a means of destroying or modifying the indigenous vegetation. The application of low doses of paraquat or diquat to an association containingMolinia caerulea, Nardus sfrictaandFestuca avinaresulted in a change in equilibrium in favour of the fescues. The application of 2 lb paraquat per acre practically eliminates all grass species in a sward and it is then possible to establish desirable pasture species after lightly cultivating the dead surface litte

ISSN:0142-5242    

DOI:10.1111/j.1365-2494.1965.tb00398.x

出版商:Blackwell Publishing Ltd    

年代:1965

数据来源: WILEY

摘要:

The yields ofChloris gayana, pure and in mixture withStylosanthes gracilis, were compared under nitrogen, phosphorus and sulphur fertilizer treatments applied in factorial combination. The unfertilized grass/legume mixture gave twice the yield of pure grass. When fertilized with P and S, the mixed pasture produced over 3 times as much as the pure grass. The legume component of the mixture depressed the grass component as a result of competition. N increased grass growth but its net effect on total production in the grass/legume mixture was nil. The biggest single fertilizer effect was that of S on the legume.

ISSN:0142-5242    

DOI:10.1111/j.1365-2494.1965.tb00399.x

出版商:Blackwell Publishing Ltd    

年代:1965

数据来源: WILEY