Effect of the integrated application of lime and fertilizers on the agrochemical parameters of grey forest soil and the yielding capacity of crop rotation
2010
Mal'tsev, V.T. | Moshkarev, V.N. | Ostanin, V.A. | Lozovaya, N.G., Irkutsk Research and Development Inst. of Agriculture (Russian Federation)
A positive effect of lime on the acidity and agrochemical parameters of gray forest soil was established in two cycles of crop rotation. Use of lime at the dose of 0.5 Hm in 2 crop rotations improved the agrochemical properties of grey forest acid soil. A double use of the ameliorant the soil from highly acid came into low acid soils and close to neural. Mineral fertilizer had no influence on soil acidity. In the two rotations liming really increased the yields of the first rotation crops: corn – by 16-21% in the first rotation and by 7.9-16% - in the second rotation, barley – by 11-18 and 20-63% clover – by 12-132 and 12-19%, respectively. The affect of mineral fertilizer really increased the yield of corn and barley and their post-effect – only clover in the 1 rotation. The total gross yield of the limed products increased by 11-16% in the first rotation and by 10-14 – in the second one, when using mineral fertilizer – by 8.2-17 and 2.5-13%, respectively. The most increase in productivity of crop rotation was provided by JNFK and NK. The highest economic values of liming in the first rotation were obtained for NPK and NK without lime. In the second rotation higher economic parameters were obtained. The yielding capacity of crops and the crop rotation productivity increased and the economic efficiency parameters improved at the application of ameliorant and mineral fertilizers
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