Structure and sowing principles of rice rope direct seeding machine are introduced. In order to test the machine＇ s working performance, such as compacting effect, sowing depth, influence of sowing device to rice rop...Structure and sowing principles of rice rope direct seeding machine are introduced. In order to test the machine＇ s working performance, such as compacting effect, sowing depth, influence of sowing device to rice rope, etc., field experiments were conducted. It is concluded that mean slip ratio of compacting wheel 1 is 4.44%, wheel 2 is 5.58%, wheel 3 is 7.81%, and wheel 4 is 6.96%; mean depth of planting is 29.72 mm, and mean variability coefficient of planting depth is 6.39%. Maximum variability coefficient of planting depth is 8.40%. Rice rope＇s snapping is closely related with the machine＇s speed and guide thread wheel by sowing device orthogonal experiments. Test results show that the machine has a rational design, safe work and meets to the requirements of planting. This study has laid the foundation for further studying the project.展开更多
Garlic is a traditional vegetable and an important horticultural crop in China,with its cultivated area and production ranking first among all countries in the world.In recent years,with social and economic developmen...Garlic is a traditional vegetable and an important horticultural crop in China,with its cultivated area and production ranking first among all countries in the world.In recent years,with social and economic development,labor costs have generally risen,which has directly led to the cost of garlic planting rising year after year,the decline in profits from garlic planting,and the continued reduction in garlic planting area.In this review,the development of mechanized planting in the main garlic-producing countries in the world is discussed in detail,and the present situation and characteristics of mechanized planting in China are analyzed.The advanced garlic seeding machinery and existing problems are compared and investigated,and the development status and technical characteristics of garlic seeding mechanization in China are analyzed.On this basis,it is pointed out that China’s garlic sowing mechanization faces the problems of insufficient integration of agricultural machinery and agronomy,lack of unification of planting mode,and imperfection of core functions.In addition,relevant suggestions are put forward for the problems faced by China’s mechanical garlic sowing equipment:develop garlic sowing mechanization equipment according to local conditions,promote standardized garlic planting agronomy,improve the innovation ability of core components,and develop a garlic seeder to meet the agronomic requirements of the country.展开更多
基金supported by the National Natural Science Foundation of China(50775150)
文摘Structure and sowing principles of rice rope direct seeding machine are introduced. In order to test the machine＇ s working performance, such as compacting effect, sowing depth, influence of sowing device to rice rope, etc., field experiments were conducted. It is concluded that mean slip ratio of compacting wheel 1 is 4.44%, wheel 2 is 5.58%, wheel 3 is 7.81%, and wheel 4 is 6.96%; mean depth of planting is 29.72 mm, and mean variability coefficient of planting depth is 6.39%. Maximum variability coefficient of planting depth is 8.40%. Rice rope＇s snapping is closely related with the machine＇s speed and guide thread wheel by sowing device orthogonal experiments. Test results show that the machine has a rational design, safe work and meets to the requirements of planting. This study has laid the foundation for further studying the project.
基金supported by National Key Research and Development Program(Grant No.2022YFD1602400)the Central Government for Guiding Local Science and Technology Development(No.2024ZY044)the Key Laboratory Project of Qinghai Science&Technology Department(Grant No.2023-1_4).
文摘Garlic is a traditional vegetable and an important horticultural crop in China,with its cultivated area and production ranking first among all countries in the world.In recent years,with social and economic development,labor costs have generally risen,which has directly led to the cost of garlic planting rising year after year,the decline in profits from garlic planting,and the continued reduction in garlic planting area.In this review,the development of mechanized planting in the main garlic-producing countries in the world is discussed in detail,and the present situation and characteristics of mechanized planting in China are analyzed.The advanced garlic seeding machinery and existing problems are compared and investigated,and the development status and technical characteristics of garlic seeding mechanization in China are analyzed.On this basis,it is pointed out that China’s garlic sowing mechanization faces the problems of insufficient integration of agricultural machinery and agronomy,lack of unification of planting mode,and imperfection of core functions.In addition,relevant suggestions are put forward for the problems faced by China’s mechanical garlic sowing equipment:develop garlic sowing mechanization equipment according to local conditions,promote standardized garlic planting agronomy,improve the innovation ability of core components,and develop a garlic seeder to meet the agronomic requirements of the country.
