Effect of long-term fertilization with farmyard manure and NPK on the content in soil of [humus and] nutrients soluble in 20% HCl
1987
Kepka, M. | Chojnicki, J. (Szkola Glowna Gospodarstwa Wiejskiego - Akademia Rolnicza, Warszawa (Poland). Katedra Gleboznawstwa)
Farmyard manure was found to have a greater effect on the humus content in the investigated soil than did fertilization with NPK. Generally, nutrient contents including micronutrients were affected1504 more strongly by farmyard manure than by mineral fertilization, the differences varying according to the nutrient in question and to the genetic horizon of the
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