CN102845269A - Method for planting rice by straw substrate fertilizer - Google Patents

Abstract

The invention belongs to planting technology of crops and relates to a method for planting rice by straw substrate fertilizer. The method includes: a, using straw substrate fertilizer, 720-760kg per mu, as substrate fertilizer to treat soil before rice planting; b, seeding rice, 5-7kg per mu, in the middle and lower reaches of Yangtze River on 5th June to 10th June, and dressing nitrogen fertilizer twice, 20kg of urea per mu, in fourth leaf and second leaf phases in crop growth; and c, performing conventional field management till harvesting, wherein the straw substrate fertilizer is organic fertilizer made by biologically decomposing and fermenting crop straw. The method has the advantages that using the straw substrate fertilizer as base fertilizer contributes to rice growth and helps evidently increase rice yield per unit area, while the nitrogen quantity remains the same; continuous multi-year application of the straw substrate fertilizer contributes to improving soil structure and improving land capability, and application of the nitrogen fertilizer and cost can be reduced in later stage.

Description

The fertile method that is used for Rice Cropping of straw substrate

Technical field

The invention belongs to the proportion of crop planting technology, relate to the fertile method that is used for rice cropping of a kind of straw substrate.

Background technology

At present, in the Rice Cropping of the middle and lower reach of Yangtze River, fertile as matrix for the fertile inorganic composite fertilizer that usually adopts of matrix, in process of crop growth again with nitrogenous fertilizer such as urea as topdressing, through producing for many years soil fertility is reduced, crop yield descends, and is unfavorable for doing stable maintenance and the raising of output.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of and can improve soil structure, the level that increases fertility of land, the fertile method that is used for rice cropping of straw substrate of raising rice crop output.

The fertile method that is used for rice cropping of straw substrate of the present invention is:

A. using of matrix fertilizer processed soil as matrix fertilizer with straw substrate fertilizer before rice growing, the mu fertile 720-760 kilogram of straw substrate; Described straw substrate fertilizer is the fertilizer that agricultural crop straw becomes thoroughly decomposed and ferments and make through biology;

B. sow and topdress, rice growing was carried out 5 to 10 June in the middle and lower reach of Yangtze River, and seeding quantity is every mu of 5-7 kilogram, plant growth fall four leaf phases and the at twice nitrogen dressing of two leaf stage that falls, topdressing amount is every mu of 20 kg urea;

C. carry out conventional field management, to crop harvesting.

Advantage applies of the present invention in the situation that: 1, make base manure in equal nitrogen amount with straw substrate fertilizer, be conducive to the growth of paddy rice, to improving the rice yield successful, effect is better than high concentration (more than 45%) composite fertilizer; 2, use straw substrate fertilizer for years be conducive to improve soil structure, the level that increases fertility of land, the later stage can suitably reduce nitrogen application, reduces cost.

Embodiment

Adopt method of the present invention to implement and comparative trial in continuous 2 years in the middle and lower reach of Yangtze River, 3 processing are established in test, E, F, H are the Da Qu contrast, E: be the embodiment of the invention one (First Year) and embodiment two (Second Year), fertile 750 kilograms of straw substrate of mu; F: mu is with 60 kilograms of 45% composite fertilizers; H: mu is with 72 kilograms of 45% inorganic composite mixed fertilizers.All topdress by every mu of 20 kg urea standards in each district, minute secondary (four leaves, two leaves that fall) is used.Rice varieties: No. 5, normal agricultural round-grained rice.Sowing time: June 5 to 10.Seeding quantity: 5 kilograms every mu.Implement and result of the test such as following table:

Claims (1)

1. the fertile method that is used for rice cropping of a straw substrate is characterized in that:

A. using of matrix fertilizer processed soil as matrix fertilizer with straw substrate fertilizer before rice growing, the mu fertile 720-760 kilogram of straw substrate; Described straw substrate fertilizer is the fertilizer that agricultural crop straw becomes thoroughly decomposed and ferments and make through biology;

B. sow and topdress, rice growing was carried out 5 to 10 June in the middle and lower reach of Yangtze River, and seeding quantity is every mu of 5-7 kilogram, plant growth fall four leaf phases and the at twice nitrogen dressing of two leaf stage that falls, topdressing amount is every mu of 20 kg urea;

C. carry out conventional field management, to crop harvesting.