caa a22 4500 386326630 CHVBK 20180307111655.0 cr unu---uuuuu 161130e198907 xx s 000 0 eng 10.1017/S0014479700014915 doi S0014479700014915 pii (NATIONALLICENCE)cambridge-10.1017/S0014479700014915 Effects of Spacing and Lopping on a Mesquite (Prosopis juliflora)-Karnal Grass (Leptochloa fusca) Agroforestry System on an Alkaline Soil [Elektronische Daten] The effects of spacing and lopping on a mesquite (Prosopis juliflora) and Karnal grass (Leptochloa fusca) agroforestry system on an alkaline soil at Karnal in India was examined over a three year period from planting. There were no significant differences in the height and diameter of the mesquite or in the number of branches at different spacings, but growth was significantly improved by lopping. The oven dried biomass obtained from lopped branches over a 40 month period was greatest at a 2 × 2 m spacing. The green forage yield of Karnal grass was greatest under mesquite spaced 4 × 4 m apart and was markedly improved under lopped mesquite. The inorganic composition of the Karnal grass, including trace elements, made it a valuable fodder in an area with an adverse alkaline soil environment. The calcium and potassium content of the grass increased and the sodium content decreased in successive cuttings. Mesquite and Karnal grass grown together reduced soil pH and EC and improved the organic carbon and available nitrogen content of the soil. Copyright © Cambridge University Press 1989 Singh Gurbachan Central Soil Salinity Research Institute, Karnal - 132 001, India Abrol I. P. Central Soil Salinity Research Institute, Karnal - 132 001, India Cheema S. S. Central Soil Salinity Research Institute, Karnal - 132 001, India Experimental Agriculture Cambridge University Press 25/3(1989-07), 401-408 0014-4797 25:3<401 1989 25 EAG https://doi.org/10.1017/S0014479700014915 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0014479700014915 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Singh Gurbachan Central Soil Salinity Research Institute, Karnal - 132 001, India NATIONALLICENCE 700 1- Abrol I. P. Central Soil Salinity Research Institute, Karnal - 132 001, India NATIONALLICENCE 700 1- Cheema S. S. Central Soil Salinity Research Institute, Karnal - 132 001, India NATIONALLICENCE 773 0- Experimental Agriculture Cambridge University Press 25/3(1989-07), 401-408 0014-4797 25:3<401 1989 25 EAG CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge