CN1439239A - Method for naked sowing alfalfa - Google Patents

Abstract

A method for barely sowing alfalfa includes such steps as ploughing and levelling farmland, applying base fertilizer, ditching by (3-5 cm) x (6-10cm), sowing, applying excrement fertilizer or imigating and then spreading plant ash or applying the aqueous solution of calcium perphosphate, and conventionally managing. Its advantages are no need of covering seeds with soil, and high germination rate.

Description

The naked broadcasting method of alfalfa

Technical field

The present invention relates to the type of seeding of alfalfa---naked broadcasting method, promptly sow behind the alfalfa seed not earthing.Because alfalfa belongs to dicotyledon, seed is little, and a little less than the top soil ability after the germination, earthing influences emergence rate.Nakedly broadcast the seeding method that technology changes traditional earthing, avoid because of emerging of causing of earthing inhomogeneous, the thickness of earth covering difference of having avoided human factor to cause simultaneously, thus effectively guarantee the quality that alfalfa is emerged.

Technical background

Alfalfa is a kind of perennial leguminous plant, be of high nutritive value, rich in proteins, multivitamin (K, B2) and other vitamin B group and mineral matter, and contain the necessary amino acid of animal, trace element and UGF, nutritional quality comes out at the top in all forage crops, as the main forage grass of livestock and poultry, be that green grass, hay or ensiling forage all have characteristics best in quality, good palatability.Clover be plant in the world history at most, area maximum, most popular leguminous forage, also be China's agricultural by traditional " cereal crops-economic crops " diadactic structure progressively to the first-selected forage crop of " cereal crops-economic crops-forage crop " ternary structural adjustment, development sustainable agriculture economy.

Alfalfa belongs to dicotyledon, and seed is little, and a little less than the top soil ability after the germination, traditional earthing seeding method directly influences its emergence rate and excellent seedling rate; In addition because of season of suitable alfalfa sowing mostly in rainy season, broadcast afterwards the plot of earthing and soil compaction behind the rain often occurs, influence is emerged, thereby has influence on the quality and yield of alfalfa.

Summary of the invention

The present invention is directed to above problem and study, by adopting the naked technology of broadcasting effectively avoiding above-mentioned influence factor because method is simple, fast, be easy to grasp, economic benefit is considerable, is suitable for industrialization production.

The present invention is at alfalfa seed earthing not after planting, avoids the inequality of emerging that causes because of earthing, and the people is the thickness of earth covering difference that causes, and soil compaction etc. influences the factor of emergence rate and excellent seedling rate behind the rain, and the quality of alfalfa is effectively guaranteed.Therefore:

The technical solution adopted in the present invention is such: promptly a kind of laboratory equipment that do not need, and directly in the alfalfa type of seeding of field operation, concrete steps are as follows:

1, turns over and level land, use sufficient base fertilizer, the seedbed of growing is provided for alfalfa seed.

2, open the railway carriage or compartment by a line spacing, the dark 3-5cm in railway carriage or compartment, wide 6-10cm.

3, seed is broadcast in the railway carriage or compartment of being opened, or a little liquid dungs of pouring in the railway carriage or compartment after planting, or spread a little ash again after after planting watering a little water, or after planting water and spill with the superphosphate aqueous solution of 20-35kg/ mu.

4, carry out conventional field management.

Generally can improve emergence rate about 10% by this method.

The every thousand kernel weight 2g-3g of alfalfa seed is kidney shape more, about long 1.5mm, about wide 1mm.Planting seed the phenomenon that is blown away by wind can not occur in above-mentioned railway carriage or compartment.Because the alfalfa seed palatability is good, birds, ant class and insect are liked food mostly.In normal sowing season, this biological property of emerging fast can reduce or avoid the loss of seed to alfalfa effectively with regard to germination and emergence in after planting 2-3 days.Facts have proved, this loss than earthing after the loss that caused such as soil compaction little.In addition, the 3-5 of normal normally final singling amount of seeding quantity times, this is one of effective measures of taking for the assurance full stand in the plant husbandry practice process, also is simultaneously the naked effective measures that the back guarantees full stand of broadcasting.Seeding quantity is advisable with 0.8-1.2kg/ mu in the practice,

Embodiment

Is February, March, April, May, June, September, October and November in the reservoir area of Three Gorges between suitable naked sowing time.No matter mostly are dry season weather in July and August, be the naked back earthing of broadcasting or broadcast, and can not finish the germination and emergence process because of the external world can not provide necessary moisture for the sprouting of seed.Are not suitable for naked broadcasting in December and January, because this, temperature was low, a little less than the germination vigor of seed, are unfavorable for taking root of seedling in season, and usually take place that young shoot subjects to injury with frost.Facts have proved that when outdoor temperature was lower than 5 ℃, the naked emergence rate of broadcasting began to descend to some extent.

Embodiment 1:

On March 5th, 2002, in northern agriculture garden, Chongqing wave group herbage proving ground, select 9 square metres of consistent relatively soils of the aspect gradient, number goes out 9 groups of 500 alfalfa seeds, employing broadcasts about the earthing 1cm of back, nakedly broadcast, naked broadcasting watered three kinds of processing of liquid dung, each sub-district area is 1 square metre, and each handles three repetitions.It is as follows that March 10 was observed the result of emerging:

Embodiment 2:

On September 25th, 2002, in northern agriculture garden, Chongqing wave group herbage proving ground, select 9 square metres of consistent relatively soils of the aspect gradient, number goes out 9 parts of 500 alfalfa seeds, employing broadcasts about the earthing 1cm of back, nakedly broadcast, naked broadcasting watered three kinds of processing of liquid dung, each sub-district area is 1 square metre, and each handles three repetitions.It is as follows that October 5 was observed the result of emerging:

Claims (1)

1, the naked broadcasting method of a kind of alfalfa, concrete steps are as follows:

(1), turn over and level land, use sufficient base fertilizer;

(2), open the railway carriage or compartment by a line spacing, the dark 3-5cm in railway carriage or compartment, wide 6-10cm;

(3), seed is broadcast in the railway carriage or compartment of being opened, after planting in the railway carriage or compartment, water liquid dung, or after planting water and spread ash again after pouring water, or after planting water and spill with the superphosphate aqueous solution of 20-35kg/ mu;

(4), earthing no longer, carry out conventional field management.