[The influence of stand population density on nitrogen, phosphorus and potassium content in spring oilseed rape at different growth stages, seed and straw, seed, protein and fat yield]
2000
Sidlauskas, G. (Lithuanian Inst. of Agriculture, Dotnuva (Lithuania))
Field trials were conducted at the Lithuanian Institute of Agriculture in Dotnuva on a light loamy soddy-gleyic soil in 1993-1997. Spring oilseed rape (Brassica napus ) cv. 'Star' was seeded with the aim to investigate the influence of stand population density on variation of nitrogen, phosphorus and potasssium content in the plants at 4-5 leaf stagr, at the beginning and end of flowering, at the seed development stage as well as in mature seed and straw. The multiple regression analysis revealrd that spring oilseed rape seed, protein and fat yield was in close relationship with applied nitrogen fertilizer rate, application time, stand population density as well as interdependent on these factors
Показать больше [+] Меньше [-]