Summary of the invention
A kind of chemical fertilizer that the objective of the invention is to provide at the deficiencies in the prior art mixes the method for using control vegetables soil insect with agricultural chemicals, this method can reduce the chemical pesticide consumption, chemical fertilizer both can be used as fertilizer and had used, simultaneously can play the effect that the repellent soil insect lays eggs again, control efficiency is good, has application promise in clinical practice on producing.
The object of the present invention is achieved like this:
A kind of method of preventing and treating the vegetables soil insect, it comprises following concrete steps:
A, with carbon ammonium (NH
4HCO
3) be that 13.8~0: 0~13.8 ratio is mixed with the iron frog (3% phoxim) in mass ratio, form carbon ammonium and the iron frog (3% phoxim) mixture.
B, vegetable field spread fertilizer over the fields the above-mentioned carbon ammonium and the iron frog (3% phoxim) mixture in whole furrow arrangement process, the amount of spreading fertilizer over the fields is 3~55kg/ mu.
C, after 2~3 days the above-mentioned vegetable field that spreads fertilizer over the fields mixture is turned over, transplanted or planting vegetable in 8~10 days the back of turning over.
The present invention to the vegetables soil insect as: black cutworm, grub, mole cricket, wireworm all have control efficiency, particularly temperature to use the method effect splendid higher summer, can effectively walk quickly and keep away and kill the larva and the adult that residue in the soil; And can effectively reduce the chemical pesticide usage amount, and reduced environmental pollution, improved economic benefit.
Embodiment
Embodiment 1
A, get carbon ammonium (NH
4HCO
3), standby.
B, vegetable field spread fertilizer over the fields the carbon ammonium in whole furrow arrangement process, the amount of spreading fertilizer over the fields is 50kg/ mu (667m
2).
C, after 2 days the above-mentioned vegetable field that spreads fertilizer over the fields the carbon ammonium is turned over, turned over and transplanted cauliflower in back 8 days and grow seedlings, density is 2051 strain/mus.
Embodiment 2
A, get the iron frog (agent of 3% phoxim), standby.
B, vegetable field spread fertilizer over the fields the iron frog (agent of 3% phoxim) in whole furrow arrangement process, the amount of spreading fertilizer over the fields is 3.6kg/ mu (667m
2).
C, after 3 days the above-mentioned vegetable field that spreads fertilizer over the fields the iron frog (agent of 3% phoxim) is turned over, turned over and transplanted cauliflower in back 9 days, density is 2051 strain/mus.
Embodiment 3
A, with carbon ammonium (NH
4HCO
3) be that 10: 1.2 ratio is mixed with the iron frog (3% phoxim) in mass ratio, form carbon ammonium and the iron frog (3% phoxim) mixture, standby.
B, vegetable field spread fertilizer over the fields said mixture in whole furrow arrangement process, the amount of spreading fertilizer over the fields is the carbon ammonium 30Kg+ iron frog (3% phoxim granule) 3.6kg/ mu (667m
2).
C, after 3 days the above-mentioned vegetable field that spreads fertilizer over the fields mixture is turned over, turned over and transplanted cauliflower in back 10 days, density is 2051 strain/mus.
Embodiment 4
A, with carbon ammonium (NH
4HCO
3) be that 10: 0.72 ratio is mixed with the iron frog (3% phoxim) in mass ratio, form carbon ammonium and the iron frog (3% phoxim) mixture, standby.
B, vegetable field spread fertilizer over the fields said mixture in whole furrow arrangement process, the amount of spreading fertilizer over the fields is the carbon ammonium 50Kg+ iron frog (3% phoxim granule) 3.6kg/ mu (667m
2).
C, after 3 days the above-mentioned vegetable field that spreads fertilizer over the fields mixture is turned over, turned over and transplanted cauliflower in back 10 days, density is 2051 strain/mus.
Reference examples
Vegetable field is turned over, turned over and transplanted cauliflower in back 10 days, density is 2051 strain/mus.
The effect contrast
(1), investigation content and method
Randomly draw area 1m
2The sample of dark 10cm is before cauliflower is transplanted the insect population radix to be investigated before dispenser.After cauliflower is transplanted, investigation 1m
2The time near the cauliflower root system, dig soil, in order to avoid the injury cauliflower, investigate every sub-district borer population of living, 8d, 20d, the killed strain number of 30d investigation cauliflower after the dispenser, and carry out significance of difference analysis respectively at 8d, 20d after the dispenser.
(2), control efficiency analysis
5 investigation methods of " Z " type of employing, random searching 5 points, every 20 strain cauliflower, killed cauliflower strain number is write down in 100 strains of investigation cauliflower, calculates cauliflower rate of damage and control efficiency.
The control efficiency of each embodiment soil insect of table 1
Annotate: listed data are the mean of 3 repetitions in the table, and it is remarkable that different lowercases are illustrated in 5% level difference.
CK wherein
0Insect population radix before the expression reference examples is handled, P
T1Borer population alive after the expression chemicals treatment, CK
1The expression reference examples is handled back borer population alive, P
T0Borer population alive before the expression chemicals treatment.
Analyze from table 1, the soil insect quantity of each treatment region does not have significant difference before the medicine, and behind dispenser 8d, the soil insect quantity of embodiment 3 and embodiment 4 significantly is lower than embodiment 1 and embodiment 2, only is 0.67 m-1, and preventive effect is up to 86.60%; 20d behind the medicine, the soil insect quantity of embodiment 3 and embodiment 4 is minimum all the time, significantly is lower than other embodiment, and preventive effect also is significantly higher than other embodiment, and more than 92%, the ordering of preventive effect size is: embodiment 3=embodiment 4>embodiment 1>embodiment 2.
(3), rate of damage result and analysis
The rate of damage % of the different embodiment cauliflowers of table 2
Embodiment |
8d behind the medicine |
20d behind the medicine |
30d behind the medicine |
Embodiment 1 |
2.67±0.33b |
1.67±0.33bc |
0.67±0.33bc |
Embodiment 2 |
3.00±0.58b |
2.00±0.00b |
1.00±0.00b |
Embodiment 3 |
1.00±0.58b |
0.67±0.33c |
0.00±0.00c |
Embodiment 4 |
1.00±0.58b |
0.67±0.33c |
0.00±0.00c |
Reference examples |
11.67±2.03a |
11.00±0.58a |
4.00±0.58a |
Annotate: listed data are the mean of 3 repetitions in the table, and it is remarkable that different lowercases are illustrated in 5% level difference.
Analyze from table 2,8d behind the medicine, the pest damage rate does not have significant difference under the cauliflower field; Behind the dispenser 20d, the soil insect hazard ratio of embodiment 3 and embodiment 4 is significantly less than embodiment 1 and embodiment 2; Behind the dispenser 30d, the ordering of cauliflower rate of damage size is followed successively by: embodiment 3=embodiment 4<embodiment 1<embodiment 2.
Effect of chemical control between comprehensive different embodiment and soil insect hazard ratio, the effect that carbon ammonium and the mixing of the iron frog are used significantly is better than uses the carbon ammonium or the iron frog separately.Simultaneously, for the consideration of saving the fertilizer energy and economic input cost, mu is best control soil insect measure with carbon ammonium 30kg in conjunction with iron frog 3.6kg.