CN103664360A - Special fertilizer for sweet potatoes - Google Patents

Abstract

The invention discloses a special fertilizer for sweet potatoes. The special fertilizer is prepared by mixing raw materials in parts by weight as follow: 25-30 parts of urea, 10-20 parts of ammonium sulfate, 20-25 parts of monoammonium phosphate, 15-20 parts of ammonium bicarbonate, 6-10 parts of ammonium polyphosphate, 3-5 parts of fulvic acid, 3-5 parts of potassium chloride and 10-14 parts of an organic additive. The special fertilizer for sweet potatoes has high nitrogen content and high absorptivity by the sweet potatoes, wherein lime nitrogen is a multifunctional fertilizer which is pollution-free, has no residue, is environment-friendly and can improve the soil and kill diseases and pests, and the added organic additive improves water quality and reduces air pollution effectively, so that the environment is protected.

Description

A kind of special fertilizer for sweet potato

Technical field

The present invention relates generally to a kind of fertilizer, relates in particular to a kind of special fertilizer for sweet potato.

Background technology

For a long time, vast farmers relies on chemical fertilizer and promotes the growth of farm crop and improve the output of farm crop, chemical fertilizer is laid a good foundation to agriculture development and guarantee mankind grain yield, yet the poor efficiency of chemical fertilizer and the high environmental risk of bringing are thus the global significant problems of puzzlement always, therefore in conventional fertilizers, add some organic additives to improve the utilization ratio of fertilizer etc.

Summary of the invention

The object of the invention is just to provide a kind of special fertilizer for sweet potato.

The present invention is achieved by the following technical solutions:

A special fertilizer for sweet potato, it is mixed and to be formed by the raw material of following weight parts:

Urea 25-30, ammonium sulfate 10-20, monoammonium phosphate 20-25, bicarbonate of ammonia 15-20, ammonium polyphosphate 6-10, xanthohumic acid 3-5, Repone K 3-5, organic additive 10-14;

Described organic additive is comprised of the raw material of following weight parts:

Leaf-humidified soil 20-30, swamp soil 30-40, lime nitrogen 5-7, aluminium hydroxide 2-3, bone black 5-10, carboxymethyl cellulose 1-2, Nafusaku 0.6-1;

Above-mentioned Nafusaku is joined in 10-15 times of water, and stirring and dissolving, adds leaf-humidified soil, swamp soil, lime nitrogen, stir, be placed under sunlight, dry to water, add above-mentioned aluminium hydroxide, bone black, insulated and stirred 3-5 minute at 80-100 ℃, be cooled to normal temperature, add each raw material of residue, 100-200 rev/min of dispersed with stirring 10-12 minute, sieve apparatus screening, obtains described organic additive.

Advantage of the present invention is:

Special fertilizer for sweet potato of the present invention has very high nitrogen content; specific absorption by sweet potato is high; wherein lime nitrogen is a kind of nuisanceless, noresidue, free from environmental pollution; the multifunctional fertilizer that can improve again soil and kill disease worm; the organic additive adding has effectively improved water quality and topsoil, has protected environment.

Embodiment

Embodiment 1

A special fertilizer for sweet potato, it by following weight parts (kilogram) raw material mix and to form:

Urea 30, ammonium sulfate 20, monoammonium phosphate 25, bicarbonate of ammonia 20, ammonium polyphosphate 10, xanthohumic acid 3, Repone K 3, organic additive 14;

Described organic additive is comprised of the raw material of following weight parts:

Leaf-humidified soil 30, swamp soil 40, lime nitrogen 7, aluminium hydroxide 3, bone black 10, carboxymethyl cellulose 2, Nafusaku 0.6;

Above-mentioned Nafusaku is joined in 10-15 times of water, and stirring and dissolving, adds leaf-humidified soil, swamp soil, lime nitrogen, stir, be placed under sunlight, dry to water, add above-mentioned aluminium hydroxide, bone black, insulated and stirred 3-5 minute at 100 ℃, be cooled to normal temperature, add each raw material of residue, 200 revs/min of dispersed with stirring 12 minutes, sieve apparatus screening, obtains described organic additive.

Planting experiment:

Test is positioned at the modern garden of agricultural, Taihe County of Anhui Heng Jin agricultural development company limited circulation, and soil property is the soil that becomes silted up, middle fertility;

Test kind is selected current main breed business potato 19;

Community area: 60 ㎡ (4*15), random alignment, establishes three repetitions, and rate of fertilizer application is every mu of 50kg.Row spacing 80CM, the high 30-40CM in ridge, ridge top width 30-40CM, single file plantation, spacing in the rows is determined with density, 3000 plants/acre of red taro density of spring, 3500 plants/acre of red taro density of summer;

Spring, red taro was manually planted May 6, and average row is apart from 80cm, spacing in the rows 27.78cm, and planting density is 3000 plants/acre.Summer, red taro was manually planted June 7, and average row is apart from 80cm, spacing in the rows 23.8cm, and planting density is 3500 plants/acre.Before planting, unify tractor-ploughing, by test design, apply fertilizer, beat ridge, rate of fertilizer application is every mu of 50kg.The measure such as weeding, Tian Guan is identical with land for growing field crops.Summer, red taro was planted and growing period, and weather arid, sprays.Spring, red taro was planted and growing period, irrigated.Spring, red taro was cut seedling results, 145 days breeding times September 27.Summer, red taro was cut seedling results, 127 days breeding times October 11;

Red taro growing period of spring, 25.68 ℃ of temperature on average, 2273.6 ℃ of >=10 ℃ of total effective temperature, gross precipitation 524.8mm, but precipitation is uneven, and late May, a quantity of precipitation reached 105.1mm, mid-July, a quantity of precipitation reached 136.9mm, at the beginning of 8 months, once quantity of precipitation is 72.6mm, and these three quantity of precipitation just reach 314.6mm, account for 60% of whole Precipitation During Growing amount.This year 7, August, continuous high temperature to the spring red taro unfavorable, surpass 35 ℃ of high temperature and reach 34 days;

Red taro growing period of summer, 26.07 ℃ of temperature on average, 2040.89 ℃ of >=10 ℃ of total effective temperature, quantity of precipitation 373.1mm.But precipitation is uneven, mid-July, a quantity of precipitation reached 136.9mm, and at the beginning of 8 months, once quantity of precipitation is 72.6mm, and this twice quantity of precipitation just reaches 209.5mm, accounts for 61.9% of whole Precipitation During Growing amount.7, August continuous high temperature to the summer red taro unfavorable, surpass 35 ℃ of high temperature and reach 28 days.Because there being equipment of sprinkler irrigation, can promote red taro growth of summer;

The red taro per mu yield of spring of using special fertilizer of the present invention is 2354.02kg, than conventional sealing fertilizer (15:15:15) (CK) every mu volume increase 211.83kg, stimulation ratio 9.89%;

The red taro per mu yield of summer of using special fertilizer of the present invention is 2580.45kg, than conventional sealing fertilizer (15:15:15) (CK) every mu volume increase 292.6kg, stimulation ratio 12.79%.

Claims (1)

1. a special fertilizer for sweet potato, is characterized in that it is mixed and formed by the raw material of following weight parts:

Urea 25-30, ammonium sulfate 10-20, monoammonium phosphate 20-25, bicarbonate of ammonia 15-20, ammonium polyphosphate 6-10, xanthohumic acid 3-5, Repone K 3-5, organic additive 10-14;

Described organic additive is comprised of the raw material of following weight parts:

Leaf-humidified soil 20-30, swamp soil 30-40, lime nitrogen 5-7, aluminium hydroxide 2-3, bone black 5-10, carboxymethyl cellulose 1-2, Nafusaku 0.6-1;

Above-mentioned Nafusaku is joined in 10-15 times of water, and stirring and dissolving, adds leaf-humidified soil, swamp soil, lime nitrogen, stir, be placed under sunlight, dry to water, add above-mentioned aluminium hydroxide, bone black, insulated and stirred 3-5 minute at 80-100 ℃, be cooled to normal temperature, add each raw material of residue, 100-200 rev/min of dispersed with stirring 10-12 minute, sieve apparatus screening, obtains described organic additive.