CN1067672C - Special fertilizer for raising rice seedlings - Google Patents

Abstract

The present invention relates to agrochemical, particularly to a special fertilizer for raising rice seedlings. The special fertilizer is prepared from organic substances, ammonium sulfate, diammonium phosphate, ordinary superphosphate, potassium sulfate, zinc sulfate, manganese sulfate, fenaminosulf and root-inducing powder by combining the characteristics of low nutrition, high salt content and large difficulty of regulating acid of the calcareous soil in north China and the northwest according to the physiological characteristics of nutrition of the primary seedling stage of rice. The present invention has the advantages of complete nutrient, stable fertilizer effect, convenient use, good effect, etc., and has the functions of improving physiological environment of seedlings and preventing seedling blight.

Description

Special fertilizer for raising rice seedlings

The present invention relates to a kind of agrochemical, particularly special fertilizer for raising rice seedlings.

The rice shoot with rsgun and wide planting technology is a revolution on China's rice cropping history, and the core measure of its key link-seedling is the nutritional bed soil that preparation is fit to seedling growth, and basic demand is: sour environment, loose fertile, nutrient is complete, fertilizer efficiency is steady.The agricultural science and technology department of China each provinces and regions, the north since the eighties has done some research work in this regard, disclosed on May nineteen ninety-five 17 as Patent Office of the People's Republic of China, number of patent application is 93114070.6 the application that is called " mother agent of amendment for paddy seedbed soil ", and it mainly is made up of sulfuric acid, rice husk, flyash, ammonium sulfate, calcium magnesium phosphorus composite fertilizer, vitriolate of tartar, zinc sulfate, trace element.This invention is to develop according to local edaphic condition, only pay attention to regulating soil acidity, and nutrient content is on the low side.

The objective of the invention is provide a kind of and solve that northwest and North China's calcareous soil are complete because of the nutrient of problems such as nutrient deficiency, saltiness height, acid adjustment difficulty are big, function strong, should promote the use of, effective raising rice seedlings nutritional bed soil modulation is special-purpose fertile.

Technical scheme of the present invention is as follows:

Organism 15-40%

Ammonium sulfate 20-30%

Diammonium phosphate 10-20%

General calcium 15-25%

Vitriolate of tartar 5-15%

Zinc sulfate 1-5%

Manganous sulfate 0-5%

Fenaminosulf 3-5%

The root-inducing powder trace

The invention has the advantages that:

1. balanced nutrients, promotion growth: nutrient of the present invention is complete, fertilizer efficiency is steady, can need not topdress for the required nutrient of rice seedling stable market supply;

2. regulate acidity, improve physiological environment: according to the big situation of calcareous soil acid adjustment difficulty, by the chemical reaction of each physiological acidic fertilizer, regulate the acidity of rice shoot rhizosphere environment, thereby improve the physiological environment of rice shoot, realize the purpose in disease-resistant strong sprout;

3. sterilization, disease-resistant strong sprout: by the sterilization effect of fenaminosulf to bed soil, can prevent the generation of rice shoot damping-off effectively, fenaminosulf also has the effect that promotes the seedling growth growth concurrently simultaneously;

4. easy to use: the present invention's product is the synthetic powdery bagged product of nutritional bed soil, only needs in use to determine to lack more than the consumption according to the size of seedling area, need not the note prescription, need not raw material is handled.

Embodiments of the invention are as follows:

Following component is mixed by proportioning: furfural dregs or humic acid 30%, ammonium sulfate 25%, diammonium phosphate 12%, general calcium 13%, vitriolate of tartar 5%, zinc sulfate 3%, manganous sulfate 3%, fenaminosulf 3.5%, root-inducing powder 0.5%.Small packages with every bag of 2-3kg is packed, in use, and every 16-20 square metre of one bag of this product in seedling pond.With this product and general seedling contrast, seedling quality obviously improves, and wherein height of seedling increases 1.8cm (17.1%), Ye Tingchang increase 0.8cm (28.5%), stem slightly increases 0.01cm (6.0%), total radical increase by 3.3 (29.6%), hundred seedling dry weights increase, 0.6 grams (24.5%).

Claims (1)

1. special fertilizer for raising rice seedlings is characterized in that it is made up of following ingredients:

Furfural dregs or humic acid 15-40%

Ammonium sulfate 20-30%

Diammonium phosphate 10-20%

General calcium 15-25%

Vitriolate of tartar 5-15%

Zinc sulfate 1-5%

Manganous sulfate 0-5%

Fenaminosulf 3-5%

The root-inducing powder trace