D b chavda (66 résultats)

Etat : New.

Etat : New.

Etat : New.

Etat : New.

Etat : As New. Unread book in perfect condition.

Etat : As New. Unread book in perfect condition.

Etat : New.

Etat : New.

Etat : New.

Etat : New.

PAP. Etat : New. New Book. Shipped from UK. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

PAP. Etat : New. New Book. Delivered from our UK warehouse in 4 to 14 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

PAP. Etat : New. New Book. Shipped from UK. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware 60 pp. Englisch.

PAP. Etat : New. New Book. Delivered from our UK warehouse in 4 to 14 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

Paperback. Etat : new. Paperback. L'Inde subit chaque annee une perte de pres de 19,8 milliards de roupies due aux mauvaises herbes, ce qui entraine une baisse significative de la productivite des cultures. Les mauvaises herbes entrent en concurrence avec les cultures pour les nutriments, l'eau, la lumiere du soleil et l'espace, ce qui se traduit par des pertes de rendement considerables. Une gestion efficace des mauvaises herbes est donc essentielle pour ameliorer la production agricole. Les methodes de lutte contre les mauvaises herbes comprennent les pratiques mecaniques, chimiques, biologiques, culturales et le brulage. Parmi celles-ci, le desherbage mecanique est economique, respectueux de l'environnement et adapte aux petites exploitations agricoles morcelees. Les operations de desherbage interculturel sont importantes pour eliminer les mauvaises herbes et prevenir leur croissance. En fonction de la culture et des conditions du sol, 2 a 4 operations de desherbage sont generalement necessaires. Un desherbage effectue en temps opportun ameliore la croissance et le rendement des cultures tout en minimisant les dommages causes aux plantes. Afin de repondre au besoin d'un outil de desherbage efficace et peu couteux, l'etude intitulee Evaluation des performances d'un desherbeur a rouleaux a ete menee. Le desherbeur a rouleaux a fonctionne efficacement jusqu'a une profondeur de 3,0 cm, avec un rendement de 0,0393 ha/h et une puissance requise de 0,043 hp. This item is printed on demand. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware 60 pp. Spanisch.

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - India loses nearly ¿1,980 crore annually due to weeds, causing significant reductions in crop productivity. Weeds compete with crops for nutrients, water, sunlight, and space, resulting in considerable yield losses. Effective weed management is therefore essential for improving agricultural production. Weed control methods include mechanical, chemical, biological, cultural, and burning practices. Among these, mechanical weeding is economical, environmentally friendly, and suitable for small and fragmented farms.Intercultural operations are important for removing weeds and preventing their growth. Depending on crop and soil conditions, 2-4 weeding operations are generally required. Timely weeding improves crop growth and yield while minimizing plant damage.To address the need for an efficient and low-cost weeding implement, the study entitled 'Performance Evaluation of Roller Weeder' was conducted. The roller weeder operated effectively up to a depth of 3.0 cm with a field capacity of 0.0393 ha/h and a power requirement of 0.043 hp. The maximum weeding efficiency achieved was 78.57%, with a performance index of 7116.5. The draft requirement for a 16 cm working width was 4.9 kg.…

Paperback. Etat : new. Paperback. India loses nearly 1,980 crore annually due to weeds, causing significant reductions in crop productivity. Weeds compete with crops for nutrients, water, sunlight, and space, resulting in considerable yield losses. Effective weed management is therefore essential for improving agricultural production. Weed control methods include mechanical, chemical, biological, cultural, and burning practices. Among these, mechanical weeding is economical, environmentally friendly, and suitable for small and fragmented farms.Intercultural operations are important for removing weeds and preventing their growth. Depending on crop and soil conditions, 2-4 weeding operations are generally required. Timely weeding improves crop growth and yield while minimizing plant damage.To address the need for an efficient and low-cost weeding implement, the study entitled "Performance Evaluation of Roller Weeder" was conducted. The roller weeder operated effectively up to a depth of 3.0 cm with a field capacity of 0.0393 ha/h and a power requirement of 0.043 hp. The maximum weeding efficiency achieved was 78.57%, with a performance index of 7116.5. The draft requirement for a 16 cm working width was 4.9 kg. This item is printed on demand. Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability.…

Taschenbuch. Etat : Neu. This item is printed on demand - Print on Demand Titel. Neuware -India loses nearly ¿1,980 crore annually due to weeds, causing significant reductions in crop productivity. Weeds compete with crops for nutrients, water, sunlight, and space, resulting in considerable yield losses. Effective weed management is therefore essential for improving agricultural production. Weed control methods include mechanical, chemical, biological, cultural, and burning practices. Among these, mechanical weeding is economical, environmentally friendly, and suitable for small and fragmented farms.Intercultural operations are important for removing weeds and preventing their growth. Depending on crop and soil conditions, 2-4 weeding operations are generally required. Timely weeding improves crop growth and yield while minimizing plant damage.To address the need for an efficient and low-cost weeding implement, the study entitled 'Performance Evaluation of Roller Weeder' was conducted. The roller weeder operated effectively up to a depth of 3.0 cm with a field capacity of 0.0393 ha/h and a power requirement of 0.043 hp. The maximum weeding efficiency achieved was 78.57%, with a performance index of 7116.5. The draft requirement for a 16 cm working width was 4.9 kg. 60 pp. Englisch.…

Taschenbuch. Etat : Neu. PERFORMANCE EVALUATION OF ROLLER WEEDER | D. B. Chavda (u. a.) | Taschenbuch | Englisch | 2026 | LAP LAMBERT Academic Publishing | EAN 9786630154931 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu Print on Demand.…

PAP. Etat : New. New Book. Shipped from UK. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

PAP. Etat : New. New Book. Shipped from UK. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

PAP. Etat : New. New Book. Shipped from UK. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

PAP. Etat : New. New Book. Shipped from UK. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware 60 pp. Französisch.

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - La India pierde casi 19.800 millones de rupias al año debido a las malas hierbas, lo que provoca reducciones significativas en la productividad de los cultivos. Las malas hierbas compiten con los cultivos por los nutrientes, el agua, la luz solar y el espacio, lo que da lugar a pérdidas considerables de rendimiento. Por lo tanto, una gestión eficaz de las malas hierbas es esencial para mejorar la producción agrícola. Los métodos de control de las malas hierbas incluyen prácticas mecánicas, químicas, biológicas, culturales y de quema. Entre ellos, el deshierbe mecánico resulta económico, respetuoso con el medio ambiente y adecuado para explotaciones pequeñas y fragmentadas. Las labores entre cultivos son importantes para eliminar las malas hierbas y prevenir su crecimiento. Dependiendo del cultivo y de las condiciones del suelo, suelen ser necesarias entre 2 y 4 operaciones de deshierbe. El deshierbe oportuno mejora el crecimiento y el rendimiento de los cultivos, al tiempo que minimiza los daños a las plantas. Para dar respuesta a la necesidad de un implemento de deshierbe eficiente y de bajo coste, se llevó a cabo el estudio titulado 'Evaluación del rendimiento del deshierbador de rodillos'. El desbrozador de rodillos funcionó eficazmente hasta una profundidad de 3,0 cm, con una capacidad de trabajo de 0,0393 ha/h y un consumo de potencia de 0,043 hp. La eficiencia máxima de desbroce alcanzada fue del 78,57 %, con un índice de rendimiento de 7116,5.…

PAP. Etat : New. New Book. Delivered from our UK warehouse in 4 to 14 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

PAP. Etat : New. New Book. Delivered from our UK warehouse in 4 to 14 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

PAP. Etat : New. New Book. Delivered from our UK warehouse in 4 to 14 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.