Four separate agronomic trials in different years and areas of Capitanata （Southern Italy） were carried out in order to evaluate the application of natural fertilizers （biostimulants） to processing tomato crops （...Four separate agronomic trials in different years and areas of Capitanata （Southern Italy） were carried out in order to evaluate the application of natural fertilizers （biostimulants） to processing tomato crops （cv Docet and Messapico on organic crop system and cv Docet on conventional crop system）, durum wheat （cv Quadrato in the year） and lettuce （cv Canastra OR/ROS）. The applied formulations were suspension-solutions containing humic and fulvic acids, amino acids and macro elements or amino acids and peptides obtained by chemical hydrolysis of animal epithelium. The following parameters of the quantitative-qualitative of crops were determined： marketable yield, mean weight, dry matter, pH, soluble solids, and color for tomato; grain yield, protein content, gluten content, yellow index and hectoliter weight, for durum wheat; marketable weight, number and surface, dry matter, nitrate content, thickness of leaves for lettuce. The results obtained were generally quite variable.展开更多
文摘Four separate agronomic trials in different years and areas of Capitanata （Southern Italy） were carried out in order to evaluate the application of natural fertilizers （biostimulants） to processing tomato crops （cv Docet and Messapico on organic crop system and cv Docet on conventional crop system）, durum wheat （cv Quadrato in the year） and lettuce （cv Canastra OR/ROS）. The applied formulations were suspension-solutions containing humic and fulvic acids, amino acids and macro elements or amino acids and peptides obtained by chemical hydrolysis of animal epithelium. The following parameters of the quantitative-qualitative of crops were determined： marketable yield, mean weight, dry matter, pH, soluble solids, and color for tomato; grain yield, protein content, gluten content, yellow index and hectoliter weight, for durum wheat; marketable weight, number and surface, dry matter, nitrate content, thickness of leaves for lettuce. The results obtained were generally quite variable.
