2006-2-22 9:16:0Hunan science and technology signs up for 8 Wu Tong silver
Build good Sangji pound to open the norms of Sangji pound newly, ask pond radical compares 1:1. The pond should be a rectangle, grow 60 ～ 80 rice or 80 ～ 100 meters, wide 30 or 40 meters, deep 2.5 ～ 3 meters, slope compares 1 ∶ 1.5. form of pond scrape centipede group fosse, or paratactic type canal form pound 6 ～ 10 single pools, base with base be linked together, build water of good pass in and out always canal reach road (wide 2 ～ 3 meters) . Such benefit at adjusting pond water, put in feed, fish, carry and dig the exercise such as pond sludge, also benefit earths up the canal, sericiculture that select a part of a historical period at mulberry. New pool excavate is seasonal at the beginning of the Qiu Modong with choice low water, little rain advisable. The new pool that has dug should bask in a few days, use some of organic manure or fat water again, turn on the water next pisciculture.
The growth that strengthens pond radical to manage pond radical mulberry stand or fall, produce a leaf to measure on any account, xie Zhiyou bad, affect the crop of chrysalis, silk, fish and quality directly. Accordingly, it is good to earth up a canal pond radical mulberry, increase amount yield a page, it is the key that improves beneficial result of whole of mulberry radical pound. The high yield of pond radical mulberry field helps advance somebody's career technology, should hold to " improve the soil, much fertilizer, thoroughbred, close planting, essence is in charge of " crossed measure, in order to achieve the goal of fast, high grade, high yield, implementation is grown in those days mulberry, in those days sericiculture, be benefited in those days.
Improve the soil. Mining pound, make so fecund and loose surface soil, arable layer turns into subsoil layer, and former subsoil layer is filled pond radical surface, regard new agrarian ground as the layer, although organic qualitative content increases somewhat, but reproducibility material also is in grow in quantity. Accordingly, growing Sang Qian to answer will the earth on pond radical breaks up entirely plough, deepness 10 ～ 15 centimeters, not broken, let its put aspic decency on the ice in the winter, enhance soil to connect show performance, raise soil to maintain the water, ability that protect fertilizer. A certain number of after year, yinsangji as year after year mulberry of sludge of many use pond and rise subsequently, tool reference plane is ceaseless and contractible, influence mulberry grows. So, pond radical should undertake improve the soil works the 2nd times, will tall base dig low, narrow base spread is wide, rebuild pound, make tool reference plane leaves a pool all the year round difference of top water level makes an appointment with 1 meter, change Laosang.
Much fatter. Should master add the principle that applies farmhouse organic fertilizer and intercropping green manure. It is to should be applied sufficient grow the base manure of mulberry, mu apply mix have 30 ～ the earthy miscellaneous fertilizer of 40 kilograms of phosphate fertilizer 100 ～ 200, use mucky make water again 10 ～ 20, or cake 150 ～ 200 kilograms, cooperate employ lime 25 ～ 50 kilograms, improved and acidity soil. 2 be survive in mulberry after long new root, in April the last ten-day of a month comes the first ten days of a month applied quick result nitrogenous fertilizer in May, every mus apply 20 kilograms of urea or ammonium of 50 kilograms of carbon, night soil of best employ become thoroughly decomposed 50 ～ 80. The last ten-day of a month was applied again in July, fertilizer dosage relatively before secondary increases appropriately a few, stimulative mulberry branches and leaves grows, collect a leaf in order to use to raise mid-autumn or late autumn silkworm. 3 it is mulberry grows growth phase asks to raise silkworm to apply fertilizer. Notice reasonable kind, a variety of leguminous green manure, timely break up bury. 4 be clear pool links in winter, dig silty on base, purified pound namely so, it is again base on mulberry the coming year grows apply sufficient base manure.
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