Fertilization matters of garden trees need to pay attention to 1, Due to the wide distribution of tree roots, the roots absorption of nutrients and water is mainly reply on the fibrous roots. Therefore, the fertilizer should be applied around the roots but not close to the trunk. 2, Trees with strong roots and have far-reaching distribution should be applied more and larger scope fertilizer. The symbol trees are Pinus tabulaeformis, Ginkgo biloba, Ailanthus and Acacia. Trees with […]
With the improvement of people’s living standard and the adjustment of planting structure, improving wheat quality has become the theme of wheat production. Wheat quality is affected by various factors such as variety, environment, ecology and cultivation. There are many ways to improve wheat quality, except to select high quality varieties, wheat quality also can be improved by some cultivation measures. The key technologies are as follows: Reasonably make use of nitrogen fertilizer The nitrogen requirement […]
First, learn about the source of soil Generally the humus soil like pine needles humus, peat humus soil and so on, taken from the mountains and gully, its color mostly is dark brown as well as this kind of soil is relatively loose, fertile and has good permeability. It is the ideal acid humus soil. Second, observe the soil color Acid soil generally is darker than other soil, and mostly it is dark brown. The […]
With the increasing of the variety of pesticides and the importance of environmental protection, to improve pesticide utilization and reduce pesticide residues has become the focus of people. Then, how can improve the utilization of pesticides? First, to improve the mechanical properties of manual application, change the status of the lack of single spray parts to promote the replacement of manual sprayer. Sprayers are the determinants of atomization quality and it also has directly influence on the distribution of pesticides on crops. […]
Flowers cultivated in shed will suffer from multiple disease so that flowers need multiple pesticide spraying. Many farmers in order to reduce the frequency of spray, and reduce labor intensity, every time when they spray, they will mix one kind of pesticide with many different kinds of pesticides. However, there are many kinds of pesticides, in this time, we need pay much attention to avoid the problems we may encounter when we mix some pesticides. Therefore, we need learn more […]
Zinc is one of the trace elements necessary for rice growth and development. If rice lack of zinc, the middle veins of the lower leaves will appear chlorotic white spots, reddish brown spots or irregular plaques, and then there will be reddish brown stripes expanded from the tip down leafs to upper leaves. The new leaves grow rate of diseased leaves were slow, the new leaves were short and narrow, and the leaf color was lighter, especially the basal midvein which will fade into yellowish […]
Agricultural soil is closely related to agricultural production. Good soil testing is not only beneficial to agricultural disaster prevention and mitigation, but also good for the process and quality of agricultural production as well as it also play an important role to reduce agricultural production loss. Therefore, with the development of science and technology, the application of intelligent agricultural soil testing machine is beneficial to carry out more efficient and accurate agricultural soil monitoring and […]
Fertilizer mixed with fertilizer 1.Superphosphate can not be mixed with grass ash, lime nitrogen, lime and other alkaline fertilizer, otherwise the organic acids in the soil will be neutralized, so that the insoluble phosphate will be more difficult to dissolved and the crop can not absorb and use the superphosphate directly. 2, Calcium phosphate, magnesium phosphate and other alkaline fertilizer can not be mixed with ammonium nitrogen fertilizer, and if the alkaline fertilizer mixed with […]
1, insecticide, acaricide mixed with fertilizer (1) the impact of pesticides on plant mineral nutrition. It is proved that many chlorinated hydrocarbons, organic phosphorus and carbamate pesticides can affect plant growth and plant mineral nutrition. After treatment with cotton, the concentration of calcium, magnesium, phosphorus, potassium and other elements in the petiole of cotton increased. With the study of the mixed effects of different nitrogen and nematocides on cotton, the nematode is the only one […]
Fertilizers are generally inorganic compounds. Although urea and other ingredients are organic compounds, the fertilizer is referred to as inorganic fertilizer. In addition, the raw materials of chemical fertilizers are mostly natural minerals, so chemical fertilizer, also known as mineral fertilizers. Natural organic wastes containing crop nutrient elements are called organic fertilizers or natural fertilizers, which are not fertilizers. Fertilizers containing only a nutrient that can be labeled are called unit fertilizers, which are nitrogen, […]
