This disease also controlled by foliar fungicide. Downy Mildew: This is another disease of sunflower which is also cause by a fungus. The symptoms of the Downy mildew is death of seedling leads to reduced stands in fields, if seedling survive they may be cholotic, and white cottony growth on leaves is present, this infection caused astounded growth of plant and as a result reduced seed production. Plasmopara halestedii is the most common disease of downy mildew. Management: To overcome this problem or disease treat sunflower seeds with appropriate fungicides as we know this disease caused by fungus.
Soil erosion affects the global community’s livelihoods through a variety of conditions. Some can be air pollution, water pollution, degraded land, and loss of fertile land. What is a solution to this major environmental issue ? Plants. Plants are able to reduce soil erosion by breaking the wind that is able to blow dried up topsoil off to
Among others the existence of production inefficiency at farm level, lack of and inexistence of improved production technologies are the main factors that affect productivity of maize (Arega, 2003; Arega and Rashid, 2005; Jon, 2007). There are also different risk factors, which adversely affect maize yield. Weather risk and market risks are the major challenges for farmers. In addition to the above mentioned factors, low level of crop management practices, weeds, pest and diseases, erratic rainfall, erosion, low soil fertility, poor infrastructure, and post harvest crop losses are also a growing concerns for the low productivity of maize crop in Ethiopia (ECEA, 2009; Legesse et al.,
At that time, agriculture production is low because of lack of agricultural knowledge and technological inputs were also low which bind the whole family to work in agriculture fields. After 1750s industrial revolution began and it led to advances in agricultural technology that greatly increased food production, which allow other people to pursue other work. At that time horsepower came into use and machinery like steam engine used in the agricultural process. Tractors were used for ploughing. In 1701 Jethro Tull’s used drill ways of sowing seed in rows, in the place of broadcasting.
Having a wide vegetable patch or a vast green lawn needs dedication and hard work. And one task that requires quite an effort is the tilling phase. Tilling the soil can be really difficult, especially if you have a big and wide lawn. But worry no more; we are going to list some of the best garden tillers that can help
Insect pests are major biotic constraints to vegetables production in India. Apart from causing direct damage many of them also act as vectors for several viral diseases. These insect pests upon feeding suck plant nutrients and cause uneven ripening. In vegetables, 30-40 per cent crop losses are due to sucking pest incidence (Rai et al 2014). Sucking insects reproduce rapidly and cause damage hence it is tedious to control the sucking insects with insecticides.
Plants are essential elements of the earth ecosystem. Despite the importance of plants to support the life on our world, our understanding of their developmental processes is still fragmentary. In nature, plants grow next to each other forming the different societies of the plant kingdom. Nature, in turn, affects the growth of these plants by applying different environmental factors that could limit the agricultural productivity. Duration, severity and rate of imposed stress are the factors underlying the plant response to stress (Munné-Bosch and Alegre, 2004; Omezzine et al., 2014).
Since 1966 Haryana became one of the most developed states in India where around 51 percent people directly get their employment through agricultural activity. The per capita income of Haryana has increased from Rs. 37972 in 2004-05 to Rs. 133427 in 2013-14. 3.1.2 Geographical Location The geographical location of Haryana makes it one of the
It is often considered to be a science dealing with eco-regions as it depends largely on climate and properties of soil in a particular area. These factors vary largely from one place to another. Many individuals are of the opinion that agricultural science depends on the local weather and local soil characteristics, so specific crops need to be studied locally. History The path breaking work of Gregor Mendel in the field of agriculture made its study very popular around the world. However, in the
Several relevant has been demonstrated by plant extract by several groups are present anti-Dengue activity. Natural products have become the main source of test material in the development of antiviral drug based on traditional medical practices. Traditional medicines are based on knowledge, and are used to maintain health, prevent, treat and diagnose physical or mental illness. Traditional medicinal plant have been reported to have antiviral activity . And some have been used to treat viral infection in animals and