The use of mechanized technology to pulverize straw to return land is an important technical and economic measure for fertilizing fertility, increasing farmland stamina and improving soil structure. First, straw is a rich and economical fertilizer resource that contains many nutrients necessary for crops. The ratio of straw to grain for crops is 1:1-2:1, so straw resources are abundant. The organic content of crop straw is about 15%, and nitrogen is 0.3%-0.6%. If 250-500 kilograms of crushed straw are used per acre of cultivated land, 38-75 kilograms of organic matter, 0.75-3 kilograms of nitrogen, equivalent to 4-7 kilograms of standard fertilizer (ammonium sulphate), and other nutrients for crop growth can be added. Second, it can improve soil physical and chemical properties and granule structure. After the crop straws are comminuted and returned to the field, they can release nutrients through transformation. At the same time, after humification, some organic compounds are condensed and dehydrated to form humus, which improves soil structure, water holding, water absorption, and cementation properties, thereby improving soil self-regulating water and fertilizer. , gas, heat capacity. According to relevant data, the soil organic matter and soil porosity after straw comminution were increased by 0.025%-0.15% and 2%-6%, respectively, and the soil bulk density was reduced by 0.057%-0.167%. Third, the straw smashed to restore the country, Limin, Lee Nong. The straw smashing and returning to the field not only can alleviate the shortage of chemical fertilizers, but also can obtain the effect that chemical fertilizer can not achieve. It can be effective in the year. According to the information, 150-200 kilograms of wheat stalks will be crushed per acre, and the yield will increase by 10%.
Office gift is a gift of each other between people and objects. The purpose is to please each other, or to express goodwill, respect. Gifts are also used to celebrate festivals or important occasions, such as Valentine's Day roses or birthday present or not. Gifts can also be immaterial. In ancient China, the idea of "sending thousands of miles of goose feathers and giving light affection and affection" meant that the value of a gift lies in the goodwill and the mind of the giver instead of the gift itself. Gifts do not need too expensive, as long as the expression of the heart on it. The gift narrowed the distance between people.
The person who received the gift can decorate his mood and work with joy and efficiency.
Our company has all kinds of gifts, welcome to consult.
Office Gifts
Office Gifts,Pillow For Office Chairs,Cushion For Back
NINGXIA IFA INDUSTRY&TRADE CO.LTD , http://www.ifagoup.com