János Lazányi

Preface High input agriculture is relatively new in Hungary. Crop rotation was introduced in the last century, extensive use of chemical fertilisers and pesticides became important only in the second half of the XX. century. Agricultural production has become efficient per unit of human labour...

Foreword In accordance to the Programme of Co-operation in Science and Technology between the Governments of the Republic of Hungary and Japan, seminars were held at the Kyushu National Agricultural Experimental Station, at the National Institute of Agrobiological Resources in Tsukuba, at...