CN102487714A

CN102487714A - Cultivating method of sweet potato in dry land

Info

Publication number: CN102487714A
Application number: CN2011104267075A
Authority: CN
Inventors: 吴太平
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-19
Filing date: 2011-12-19
Publication date: 2012-06-13

Abstract

The invention provides a cultivating method of sweet potato in a dry land. The method comprises the following steps: deep ploughing by 25 cm at a time with daily-average temperature of more than 3 DEG C after autumn before the beginning of winter; rowing by 0.8m to form a plant band, spraying 5kg of plant ash per mu or 20kg of potassium sulfate per mu on the rowed land surface, digging a ditch and ridging a semi-circle high ridge, wherein the ditch bottom width of the ridge ditch is 0.2m, the height of the high ridge is 0.3m, the bottom width of the high ridge is 0.6m, and the top width of the high ridge is 0.5m; covering with a micromembrane, wherein the width of the micromembrane is 90-100cm, the thickness of the micromembrane is 0.007mm, the outside of the micromembrane is silver gray, and the inside of the micromembrane is black; and in the last ten-day period of April or the first ten-day period of May, pricking holes at equal distance on the two edges of the covered ridge membrane with a pointed-end rod having a diameter of 1.5cm and length of 0.2m, planting cultivated sweet potato seedlings in the equal plant spacing of 0.2m, wherein 5500 plants are planted per mu. Compared with the conventional planting, the method provided by the invention has the advantages that the labor can be saved by 50% and the yield is doubled.

Description

A kind of nonirrigated farmland sweet potato cultivation method

Technical field:

The invention belongs to the proportion of crop planting method, be specifically related to a kind of nonirrigated farmland sweet potato cultivation method.

Background technology:

The method of north sweet potato is: the level land, beat cave, Dian Shui, make fork, intertillage 2-3 time, turn over seedling 2-3 time, per mu yield 1000-1500 kilogram, benefit is lower.

Summary of the invention:

The present invention provides a kind of nonirrigated farmland sweet potato cultivation method, its objective is to make full use of the method that duplicate rows plays the wide ridge of high heap, artificial create and increases comprehensive and reasonable demands such as soil, moisture, temperature, nutrition for the sweet potato growth.

Technical scheme of the present invention is: select nonirrigated farmland red soil or sharp sand soil property plot, soil organic matter content is 1ppm.Daily mean temperature was deep ploughed 25 centimetres in the time more than 3 ℃ before the Beginning of Winter after autumn.After soil disappeared and froze early spring, at the spring mid or late March, 10-13 millimeter precipitation is arranged after, during the ground surface drying, paddle with marker, paddling 0.8 meter is a growth belt, spreads 5 kilograms of vegetation ash fertilizer on the face of land of paddling | MuOr 50% 20 kilograms of potassium sulphates |Mu, the ditching ridging plays semicircle high ridge, and the bottom of trench width of furrow is 0.2 meter, and the height of high ridge is 0.3 meter, and the bottom width of high ridge is 0.6 meter, the top width of high ridge is 0.5 meter, is that 90-100 centimetre, thickness are that 0.007 millimeter mocromembrane covers with width.Described mocromembrane selects for use the effect of silver gray the inside, outside black better.

Both sides on the ridge film that is covering the middle ten days and the last ten days in April or the first tenday period of a month in May, 30 centimetres of interval, with 1.5 centimetres of diameters, long 0.2 meter the equidistant bundle of pritch hole is the sweet potato seedling that 0.2 meter plantation cultivates etc. spacing in the rows.Mu is planted about 5500 strains.

Because the significant advantage of plastic mulching is to heat soil moisture conservation.Therefore do the breeding that helps edaphon like this, absorption and utilization that make that artificial subenvironment produces foster part and nutrition supply sweet potato to grow continuously.The quick-acting nitrogen that do not cover of soil internal ratio after the plastic mulching increase by 30%-50% according to surveying and determination; Effectively potassium increases by 10%-20%, and available phosphorus increases by 20%-30%.

Also can reduce leaching, loss, the volatilization of soil, the availability of raising soil nutrient after the plastic mulching.

The sweet potato seedling of planting only in three days, in time look into seedling mend plant outside; Will often observe to prevent that domestic animals and fowls from going into the field and causing harm to the potato field, if occur in time covering the hole completely with fine earth in the ditch, secondly weeds are diligent intertills to controlling in the furrow; To being arranged on the film of ridge, in time pull out and blinding grass; Culture underglass is not intertilled, and does not turn over seedling until results, and management is very simple and light.The present invention can practice thrift labour 50% than general planting, improves one times of output.

What particularly point out is, the present invention has accomplished the supporting of mechanized basically from planting receipts, and big or small facility all can buy on the market.

Description of drawings;

Fig. 1 is the ridge shape figure of ridging of the present invention.

Embodiment:

1, deep ploughing: daily mean temperature was deep ploughed 25 centimetres in the time more than 3 ℃ before the Beginning of Winter after autumn.

2, paddle: after soil disappeared and froze early spring, at the spring mid or late March, 10-13 millimeter precipitation is arranged after, during the ground surface drying, paddle with marker, paddling 0.8 meter is a growth belt.

3, fertilising: spread 5 kilograms of vegetation ash fertilizer on the face of land of paddling | MuOr 50% 20 kilograms of potassium sulphates |Mu.

4, ditching ridging: play semicircle high ridge, the bottom of trench width of furrow is 0.2 meter, and the height of high ridge is 0.3 meter, and the bottom width of high ridge is 0.6 meter, and the top width of high ridge is 0.5 meter, and is shown in Figure 1.

5, overlay film: with width is that 90-100 centimetre, thickness are that 0.007 millimeter mocromembrane covers.Described mocromembrane selects for use the effect of silver gray the inside, outside black better.

6, plantation sweet potato: both sides on the ridge film that is covering the middle ten days and the last ten days in April or the first tenday period of a month in May, 30 centimetres of interval with 1.5 centimetres of diameters, are grown 0.2 meter the equidistant bundle of pritch hole, are the sweet potato seedlings that 0.2 meter plantation cultivates etc. spacing in the rows.Mu is planted 5500 strains.

7, work: the sweet potato seedling of planting was only in time looked into the seedling benefit and is planted in three days, will in time weed out the rank grass and blinding in the crop growth period.

8, results: gather in the crops mid-October.

9, rest and reorganize: results finish, and remove the seedling level land.

Claims

1. a nonirrigated farmland sweet potato cultivation method is selected nonirrigated farmland red soil or sharp sand soil property plot, and soil organic matter content is 1ppm, selects daily mean temperature in the time more than 3 ℃ before the Beginning of Winter after autumn, deep ploughs 25 centimetres; After soil disappeared and froze early spring, at the spring mid or late March, 10-13 millimeter precipitation is arranged after, during the ground surface drying, paddle with marker, paddling 0.8 meter is a growth belt, spreads 5 kilograms of vegetation ash fertilizer on the face of land of paddling | MuOr 50% 20 kilograms of potassium sulphates |Mu, the ditching ridging plays semicircle high ridge; The bottom of trench width of furrow is 0.2 meter, and the height of high ridge is 0.3 meter, and the bottom width of high ridge is 0.6 meter; The top width of high ridge is 0.5 meter, is that 90-100 centimetre, thickness are that the mocromembrane of 0.007 millimeter silver gray the inside, outside black covers with width; Both sides portion is with 1.5 centimetres of diameters on the ridge film that is covering the middle ten days and the last ten days in April or the first tenday period of a month in May, and long 0.2 meter the equidistant bundle of pritch hole is the sweet potato seedling that 0.2 meter plantation cultivates etc. spacing in the rows, and mu is planted 5500 strains.