If the pilot project of replacing chemical fertilizer with organic fertilizer is announced, it will be too late if we don't know the problems needing attention in the application of organic fertilizer.

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In China, the organic fertilizer industry is still in the primary stage of development. In 2017, 100 key counties (cities and districts) with outstanding advantages in fruit, vegetable and tea cultivation, guaranteed organic fertilizer resources, mature organic fertilizer application technology, certain foundation for industrial development and local enthusiasm will be selected to carry out demonstration of organic fertilizer instead of chemical fertilizer, with a total investment of 1 billion yuan. Although there are some problems in China's organic fertilizer industry, such as small enterprise scale, backward technology, difficult to guarantee quality, insufficient market demand and so on. However, the organic fertilizer industry belongs to the sunrise industry, and its development prospect is very broad.

Declared and approved pilot counties of organic fertilizers instead of chemical fertilizers in provinces and cities

Hunan Province

Yizhang County

Hebei Province

Fruit tree demonstration counties: Xingtai County, Zunhua City, Funing District, Qinhuangdao City.

Vegetable demonstration counties: Gaocheng District, Shijiazhuang City, Qinghai County, Yongqing County, Zhuozhou City, Guantao County, Pingquan County, Luannan County.

Guangdong province

Lianjiang City, Zhanjiang City, Huidong County, Huizhou, Mei County District, Meizhou City, Longmen County, Huizhou City

Gansu province

Zhuanglang County of Pingliang City, Li County of Longnan City, Maiji District of Tianshui City and Qingcheng County of Qingyang City declared the 2017 Apple Organic Fertilizer replacement Project.

Guangxi province

Yongfu County, Pingle County, Cangwu County and Rongan County were selected.

Anhui province

Jinzhai County, Qimen County, Tongcheng County and Shitai County are demonstration counties for tea organic fertilizer instead of chemical fertilizer, and Huaiyuan County is a demonstration county for vegetable organic fertilizer instead of chemical fertilizer.

Shanxi province

There are five demonstration counties in Linqu County, Wanrong County, Pinglu County, Qingxu County and Yicheng County, among which Linqu County, Wanrong County, Pinglu County and Yicheng County are apple demonstration counties and Qingxu County is the facility vegetable demonstration counties.

Hubei province

Dangyang, Yidu, Zigui, Xianfeng, Yunyang and Dongbao were selected.

How much fertilizer is one ton of organic fertilizer equal to?

1 ton of human feces and urine is equivalent to 25-40 kg of ammonium sulfate, 13-25 kg of calcium superphosphate and 4-6 kg of potassium sulfate. 1 ton of pig manure and urine is equivalent to 17 kg of ammonium sulfate, 21 kg of superphosphate and 10 kg of potassium sulfate.

1 ton of cow dung is equivalent to 16 kg of ammonium sulfate, 16 kg of calcium superphosphate and 3 kg of potassium sulfate. 1 ton of horse dung is equivalent to 28 kg of ammonium sulfate, 19 kg of calcium superphosphate and 5 kg of potassium sulfate.

1 ton of sheep dung is equivalent to 33 kg of ammonium sulfate, 31 kg of calcium superphosphate and 5 kg of potassium sulfate. 1 ton of chicken and duck manure is equivalent to 55-82 kg of ammonium sulfate, 88-96 kg of calcium superphosphate and 12-17 kg of potassium sulfate.

1 ton of rabbit dung is equivalent to 86 kg of ammonium sulfate, 184 kg of calcium superphosphate and 20 kg of potassium sulfate. One ton of pig manure is equivalent to 23 kg of ammonium sulfate, 12 kg of calcium superphosphate and 12 kg of potassium sulfate.

One ton of cow manure is equivalent to 17 kg of ammonium sulfate, 10 kg of calcium superphosphate and 8 kg of potassium sulfate. One ton of ordinary compost is equivalent to 20-25 kg of ammonium sulfate, 11-16 kg of superphosphate and 9-14 kg of potassium sulfate.

1 ton of plant ash is equivalent to 219 kg of calcium superphosphate and 150 kg of potassium sulfate.

There is a lot of manure, how to turn manure into treasure?

According to relevant statistics, the annual production of livestock and poultry manure pollutants in China in 2016 is about 5.5 billion tons, which is 4.6 times that of industrial organic pollutants, and this figure will increase to about 10 billion tons per year around 2020. How to turn dung into treasure? Under the national policy dividend, organic fertilizer has become the best choice!

To popularize the application of organic fertilizer, it is necessary to stimulate the enthusiasm of farmers. By strengthening policy support and implementing the green ecology-oriented agricultural subsidy policy, farmers are encouraged to apply more organic fertilizer. Adopt the way of social purchase of services, support social service organizations, and carry out organic fertilizer production, transportation, application and other services. We will study and introduce preferential policies for the use of land, electricity, credit, and taxation to support the production and application of organic fertilizer, open up the cycle of planting and cultivation, strengthen the role of demonstration, and focus on supporting new business entities such as large farmers, farmers' cooperatives and leading enterprises. focus on creating bright and interesting demonstration films.

It is difficult to popularize the application of organic fertilizer. Agricultural departments at all levels may organize teaching, scientific research and extension departments to jointly tackle key problems, integrate a number of key technologies such as the utilization of livestock and poultry manure and the application of organic manure, and formulate technical norms and standards for harmless treatment and compost returning to the field. strengthen guidance services for farmers.

Application of organic fertilizer and matters needing attention

The use effect of some organic fertilizers is really good, and some organic fertilizers fail to reflect the effect in the planting process because of their poor quality and misleading propaganda. In some cases, there will be reduced production and burning seedlings, unable to apply topdressing, some are used in the field to get hot or even stink, some cause a variety of pests, some directly lead to crop wilting and death and other problems. Why did the above phenomenon occur? It's probably the wrong way to use it!

This paper briefly introduces several incorrect usage methods.

1. Topdressing

Users use organic fertilizer as chemical fertilizer to topdressing, failed to cover the soil in time, fertilizer is only on the surface of the soil, can not fully contact with the soil, can not play the effect of soil improvement.

The best way of organic fertilizer should be used with inorganic fertilizer as base fertilizer, preferably mixed with soil, but at least (organic fertilizer) should not be exposed on the soil surface, such as ditch application and hole application, etc.

two。 Direct contact between organic fertilizer and crops

Some users are worried that the fertilizer effect is not enough, or want to achieve results as soon as possible, in the use of organic fertilizer in direct contact with crops, such a consequence will lead to serious burning seedlings will die!

3. Direct use of fresh feces

Using fresh manure is like manufacturers selling uncooked organic manure, but if something goes wrong, it will be even more serious.

Application of organic fertilizer and matters needing attention

First, it should be applied under sufficient moisture and suitable temperature.