CN109122060B - Purification method of single wild grass species large crabgrass in natural grass orchard - Google Patents

Abstract

The invention discloses a method for purifying a single wild grass species large crabgrass in a natural grass orchard, which relates to the field of mixed wild grass species purification methods, and the method comprises the steps of carrying out rotary tillage twice and cutting four times, chopping broad-leaved grass and other weeds through mechanical equipment for the first time, removing roots and cutting reproductive organs at the later time, only leaving the single large crabgrass to form a natural turf, wherein the large crabgrass turf is moderate in height and good in quality, can preserve moisture and cool fruit trees, prevent water and soil loss, adjust microclimate in the orchard, provide good inhabitation conditions for insects, prevent the insects from getting on the trees, help the beneficial insects to accelerate propagation, enable the orchard to be more natural and ecological, and can be purified more and simpler every year after one year of purification treatment, if the orchard area is large enough, the purification has no dead angle, no special intervention is needed after three years, the cost is low, the effect is fast, and the formed large crabgrass integrates attractiveness and functionality, is a preferred mode for cultivating turf in an orchard prepared from natural grass, and is suitable for large-scale popularization and application.

Description

Purification method of single wild grass species large crabgrass in natural grass orchard

Technical Field

The invention relates to the field of mixed wild grass seed purification methods, in particular to a purification method of a single wild grass seed large crabgrass in a natural grass orchard.

Background

In the orchard made of natural grass, various wild weeds can exist, including broad-leaved weeds, large crabgrass, purslane, green bristlegrass and the like, the weeds are different in height and are disordered in growth, a plurality of pests exist, a plurality of weeds have different degrees of influence on sunlight, temperature, moisture and the like required by normal growth of fruit trees, and the weeds are not beneficial to cultivating high-quality fruits in the orchard.

The large crabgrass, an annual gramineae, is a wide-spread middle-living plant with a wide ecological range, and can adapt to climatic conditions from temperate zone to tropical zone. The large crabgrass likes wet, fertile and photophobic, has no strict requirement on soil, can well grow on weak acid and weak alkaline soil, and has the advantages of fast seed propagation, strong fertility, fast plant growth and many branches. The large crabgrass grows widely in various herbaceous communities such as field sides, roadside, ditch sides, beaches, hillsides and the like, and even can invade communities such as bermuda grass, zoysia japonica and the like with strong competitiveness. The large crabgrass is one of pioneer species of vegetation succession in loose, moist and fertile abandoned or abandoned bare land, and even a pioneer community taking the large crabgrass as a dominant factor can be formed. The grassland mainly comprising the large crabgrass has high grass yield and good grass quality, is a main grazing land and a main mowing land of an agricultural area, a semi-agricultural and semi-pasturing area and a forest area, and has high utilization value.

Therefore, the large crabgrass is used as a single wild grass seed to be purified and cultured in the grass orchard, and the growth of fruit trees in the orchard is facilitated.

Disclosure of Invention

In order to solve the technical problems, the invention provides a purification method of a single wild grass variety crab grass in a natural grass orchard.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a purification method of a single wild grass species large crabgrass in a naturally-grown grass orchard is realized by the following steps:

1) removing broad-leaved grass by shallow rotary tillage for the first time in the middle ten days of 4 months in the year;

2) removing broad-leaved grass by shallow rotary tillage for the second time in the middle ten days of the month 5, wherein the proportion of large crabgrass in the turf is 70-80%;

3) in the middle 6 th month, a straw returning machine is used for carrying out first cutting to destroy reproductive organs of broadleaf weeds and other weeds so as to prevent the broadleaf weeds and other weeds from continuously propagating, and the crabgrass accounts for 80-90% of turf;

4) manually removing a small amount of purslane;

5) in the first 7 th month, the second cutting continues to destroy reproductive organs of other weeds, and the proportion of crabgrass in the turf is more than 90%;

6) carrying out the third mowing at the bottom of 7 months or at the beginning of 8 months, and keeping the height of the grass stubble to be 3-8 cm;

7) and (3) finally cutting in the middle and last ten days of 10 months, keeping the stubble height below 3cm, and then deeply rotary tillage to ensure that grass seeds are uniformly distributed at different depths to safely overwinter so as to ensure the emergence rate in the next year and form a single crabgrass turf.

The invention purifies a single crabgrass grass species from a plurality of wild weeds in an orchard made of natural grass, performs rotary tillage twice and four-time cutting on the wild weeds, such as broad-leaved weeds and the like, cuts grass and roots in the first period through mechanical equipment, cuts reproductive organs in the later period, only leaves the single crabgrass grass to form the natural turf, has moderate height and good turf quality, can preserve moisture and cool the fruit trees, prevent water and soil loss, adjust the microclimate of the orchard, provide good inhabitation conditions for insects, not only can prevent the insects from getting on the trees, but also can help the beneficial insects to accelerate propagation, and make the natural turf more tend to be natural and ecological, after one-year purification treatment, the purification becomes simpler and simpler every year, if the area of the orchard is large enough, the purification has no dead angle, no special intervention is needed after three years, the cost is low, the effect is quick, and the formed crabgrass turf integrates the attractiveness and the functionality, thereby being a preferred mode for cultivating in the orchard made of natural grass, is suitable for large-scale popularization and application.

Detailed Description

The invention is described in detail below by means of specific examples:

a purification method of a single-grass-species crab grass in a naturally-grown grass orchard is realized by the following steps:

1) removing broad-leaved grass by shallow rotary tillage for the first time in the middle ten days of 4 months in the year;

2) removing broad-leaved grass by shallow rotary tillage for the second time in the middle ten days of the month 5, wherein the proportion of large crabgrass in the turf is 70-80%;

3) in the middle 6 th month, a straw returning machine is used for carrying out first cutting to destroy reproductive organs of broadleaf weeds and other weeds so as to prevent the broadleaf weeds and other weeds from continuously propagating, and the crabgrass accounts for 80-90% of turf;

4) manually removing a small amount of purslane;

5) in the first 7 th month, the second cutting continues to destroy reproductive organs of other weeds, and the proportion of crabgrass in the turf is more than 90%;

6) carrying out the third mowing at the bottom of 7 months or at the beginning of 8 months, and keeping the height of the grass stubble to be 3-8 cm;

7) and (3) finally cutting in the middle and last ten days of 10 months, keeping the stubble height below 3cm, and then deeply rotary tillage to ensure that grass seeds are uniformly distributed at different depths to safely overwinter so as to ensure the emergence rate in the next year and form a single crabgrass turf.

Example 1:

in 4 months in 2014, in a natural grass manufactured organic peach garden in certain village in Ningyang county, verification of the crabgrass purification method is carried out for the 2 nd time:

1) the first shallow rotary tillage is carried out in 25 days in 4 months in the year, the maximum length of broad-leaved grass mainly containing chenopodium album is 30cm before the rotary tillage, gramineous grass almost does not sprout in the field in the season, and the crabgrass accounts for 70% in 5 middle ten days in the year after the rotary tillage.

2) And after 5 months and 19 days, carrying out shallow rotary tillage for the second time to remove broadleaf weeds, and after 6 months and 18 days, the crabgrass accounts for 85 percent.

3) And (4) mowing the broadleaf grass and reproductive organs of other weeds for the first time by using a straw returning machine for 6 months and 18 days to destroy the broadleaf grass and the reproductive organs of other weeds so as to prevent the broadleaf grass and the reproductive organs from continuously breeding.

4) Manually removing a small amount of purslane.

5) And (3) mowing for 14 days in 7 months for the second time to continuously destroy reproductive organs of other weeds, wherein the crabgrass accounts for 92 percent and has no broadleaf grass.

6) And (4) mowing for the third time in 2 days after 8 months, wherein the height of the stubble is 3cm, and at the moment, no other weeds exist basically.

7) And (3) finally mowing for 20 days in 10 months, wherein the crabgrass seeds are fully mature before mowing, grass stubbles are kept at a height of less than 3cm, and then deep rotary tillage is carried out, so that the grass seeds are uniformly distributed at different depths to safely overwinter, and the emergence rate of the next year is ensured.

8) In 5 middle of the month in 2015, the large-scale crabgrass grass accounts for 95%, in 2015-2016, individual weeds in the grass are simply intervened according to the situation of the orchard and the situation of the large-scale crabgrass grass, and the coverage rate of the large-scale crabgrass grass in the orchard reaches 98%.

Example 2:

in 2015, 4 months, in a natural grass manufactured organic apple orchard in a certain village of Feicheng county, verification of the digitaria sanguinalis purification method is carried out for the 5 th time:

1) the first shallow rotary tillage is carried out on 28 days in 4 months in the year, the maximum length of broad-leaved grass mainly containing chenopodium album is 32cm before the rotary tillage, gramineous grass almost does not sprout in the field in the season, and the crabgrass accounts for 75% in 5 middle ten days in the year after the rotary tillage.

2) And 5, 17 days in month 5, removing broad-leaved grass by shallow rotary tillage for the second time, and taking up 80% of crabgrass in 15 days in month 6.

3) And (4) mowing the broadleaf grass and reproductive organs of other weeds for the first time by using a straw returning machine for 16 days after 6 months to prevent the broadleaf grass and other weeds from continuously breeding.

4) Manually removing a small amount of purslane.

5) And (3) mowing for 16 days after 7 months for the second time to continuously destroy reproductive organs of other weeds, wherein the crabgrass accounts for 93 percent and has no broadleaf grass.

6) And (5) mowing for the third time after 8 months and 5 days, wherein the height of the stubble is kept to be 5cm, and at the moment, no other weeds exist basically.

7) And (3) finally mowing for 18 days in 10 months, wherein the crabgrass seeds are fully mature before mowing, grass stubbles are kept at a height of less than 3cm, and then deep rotary tillage is carried out, so that the grass seeds are uniformly distributed at different depths to safely overwinter, and the emergence rate of the next year is ensured.

8) In 5-half of the year 2016, the large greensward accounts for 96%, in 2016-2017, individual weeds in the greensward are simply intervened according to the conditions of the orchard and the large greensward, and the coverage rate of the large greensward in the orchard reaches 98%.

Example 3:

in 2015, 4 months, in another organic peach garden made of naturally-grown grass in a certain village in Feicheng county, verification of the digitaria sanguinalis purification method is carried out for the 6 th time:

1) the first shallow rotary tillage is carried out in 19 days in 4 months in the year, the maximum length of broad-leaved grass mainly containing chenopodium album is 28cm before the rotary tillage, gramineous grass almost does not sprout in the field in the season, and the crabgrass accounts for 80% in 5 middle ten days in the year after the rotary tillage.

2) And 5, 20 days in the month of 5, removing broad-leaved grass by shallow rotary tillage for the second time, and taking up 90 percent of crabgrass in the 18 days in the month of 6.

3) And (4) mowing the broadleaf grass and reproductive organs of other weeds for the first time by using a straw returning machine for 6 months and 18 days to destroy the broadleaf grass and the reproductive organs of other weeds so as to prevent the broadleaf grass and the reproductive organs from continuously breeding.

4) Manually removing a small amount of purslane.

5) And (4) mowing for 17 days in 7 months for the second time to continuously destroy reproductive organs of other weeds, wherein the crabgrass accounts for 94 percent and has no broadleaf grass.

6) And (4) mowing for the third time in 3 days after 8 months, wherein the height of the stubble is kept 8cm, and at the moment, no other weeds exist basically.

7) And finally mowing for 22 days in 10 months for the last time, wherein the crabgrass seeds are fully mature before mowing this time, grass stubbles are kept at a height of less than 3cm, and then deeply rotary tillage is carried out, so that the grass seeds are uniformly distributed at different depths to safely overwinter, and the emergence rate of the next year is ensured.

8) In 5 middle of the month of 2016, the large greensward accounts for 93%, in 2016-2017, individual weeds in the greensward are simply intervened according to the conditions of the orchard and the large greensward, and the coverage rate of the large greensward in the orchard reaches 98%.

It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.

Claims (1)

1. A purification method of a single wild grass species large crabgrass in a naturally-grown grass orchard is characterized by comprising the following steps:

1) removing broad-leaved grass by shallow rotary tillage for the first time in the middle ten days of 4 months in the year;

2) removing broad-leaved grass by shallow rotary tillage for the second time in the middle ten days of the month 5, wherein the proportion of large crabgrass in the turf is 70-80%;

3) in the middle 6 th month, a straw returning machine is used for carrying out first cutting to destroy reproductive organs of broadleaf weeds and other weeds so as to prevent the broadleaf weeds and other weeds from continuously propagating, and the crabgrass accounts for 80-90% of turf;

4) manually removing a small amount of purslane;

5) in the first 7 th month, the second cutting continues to destroy reproductive organs of other weeds, and the proportion of crabgrass in the turf is more than 90%;

6) carrying out the third mowing at the bottom of 7 months or at the beginning of 8 months, and keeping the height of the grass stubble to be 3-8 cm;

7) and (3) finally cutting in the middle and last ten days of 10 months, keeping the stubble height below 3cm, and then deeply rotary tillage to ensure that grass seeds are uniformly distributed at different depths to safely overwinter so as to ensure the emergence rate in the next year and form a single crabgrass turf.