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THESIS INFORMATION Thesis title A study on some technical solutions to increase the maize production effectiveness on sloping land in Northern Central region Specialization Crop Science Code 9 62 01 1[.]
THESIS INFORMATION Thesis title: A study on some technical solutions to increase the maize production effectiveness on sloping-land in Northern Central region Specialization: Crop Science Code: 9.62.01.10 PhD student: Trinh Duc Toan Training course: 2015 Scientific supervisors: l Dr Lucrng Van Vang; Asoc.Prof Dr Ho Quang Duc Training institution: Vietnam Academy of Agricultural Sciences SUMMARY OF THE CONTENTS OF THE THESIS 1.1 To survey and evaluate the current status of maize production in Nghe An and Thanh Hoa provinces; 1.2 Study on some technical solutions to improve the efficiency of maize production on sloping-land of Nghe An and Thanh Hoa provinces: 1.3 Building-up a demonstration model which applied the integrated cutivated practies solutions on sloping-land of Nghe An and Thanh Hoa provinces NEW RESULTS OF THE THESIS 2.i Assessing the natural and socio-economic conditions, favorable and difficulties factors in maize production in Northern Central region In the period of 2012-2017, the maize area of Northern Central region was relatively stable, averaging 127.8 thousand hectares, accounting fo.r ll%o of the whole country's maize area and 62)2% of the whole Central region's maize area The average maize yield in this region is 39.0 quintals,4ra, lower than the national average yield about 6.65 quintalslha and lower than the average yield of maize in the Central region about 4.4 quintalslha The main reasons for limiting the efficiency of maize production on the sloping-land in the Northern Central region are lacking of suitable maize varieties and the lacking of proper farming techniques; 2.2 Three maize varieties have been identified: CS71, P4199 and 30Y87 with good growth and development, and good tolerance to adverse conditions of the sloping-land of Nghe An and Thanh Hoa provinces They have a high yield of over 6.0 tons/ha; in which varieties CS71 and P4199 have stable yield; 2.3 Some appropriate farming techniques have been identified to improve production efficiency for the CS71 on sloping-land in Nghe An and Thanh Hoa: The planting season is January 20 to January 27 every year; Planting density 65 - thousand plants/ha, Fertilizer: 180 kg Nitrogen + 80 kg Phosphorus + 100 kg Potassium; Application of mechanization in the following stages: plowing, harrowing, slitting and separating grain kemels; Using chemical compounds with active ingredients: Acetochlor, Nicosulfuron to control weeds; Emamectin benzoate to control stem borers; Difenoconazole and Propiconazole to prevent diseases 2.4 A model of synchronous application of technical management has been built for maize production on sloping-land of Nghe An and Thanh Hoa provinces, the achieved yield of over 65 quintals lha, the economic efficiency increased by 22-30% compared to those of control Scientific supervisor PhD Student \ruf-Pta"rtg Dr Luong Van Vang Trinh Duc Toan ... Phosphorus + 100 kg Potassium; Application of mechanization in the following stages: plowing, harrowing, slitting and separating grain kemels; Using chemical compounds with active ingredients: Acetochlor,... the achieved yield of over 65 quintals lha, the economic efficiency increased by 22-30% compared to those of control Scientific supervisor PhD Student \ruf-Pta"rtg Dr Luong Van Vang Trinh Duc... Using chemical compounds with active ingredients: Acetochlor, Nicosulfuron to control weeds; Emamectin benzoate to control stem borers; Difenoconazole and Propiconazole to prevent diseases 2.4 A