Knowledge Center Catalog

Effect of minimum till on improvement of maize yield

By: Contributor(s): Material type: TextTextPublication details: Tbilisi (Georgia) CIMMYT : 2004Description: p. 368-369Subject(s): DDC classification:
  • 633.1147 BED
Summary: Minimum till is the crop management system enabling preservation of soil natural fertility through reduction of soil dispersion and decrease of soil compaction at cultivation of field crops with minimal labor and material expenses. Such management aims at controlling of the wind erosion of soils. We focused on investigation of the effects of minimum till and herbicide treatment on yield of maize in the environment of Shua Kartli Plain flatlands located in the zone of wind erosion. Laboratory/field tests were performed in 2001-2002 at the institute experimental field with irrigated brown soil. The experiment design included 7 different treatments in 3 replications. The plot area was 140 m2. Wheat was the predecessor crop. Hybrid maize variety Tserovani 1 developed at the genetics department of the institute was used as the study material. During the experiment phenological and biometric observations were made. Herbicides were used to control the identified weeds. The experimental data is shown in the table below. The average grain yield was equal to 10.5 - 12.2 t/ha. Check treatment (#1) included the following: (a) incorporation of wheat residue in soil through scuffling at 10-15 cm after harvest in the fall (b) under-winter plowing at 22-25 cm in the second half of October (c) early spring application of N6oP9oK6o combined with zigzag harrowing and (d) optional pre-sowing cultivation. Deviation of + 1.1 ton/ha from the check was recorded for treatment 2 (the same measures but with cancelled wheat residue incorporation). Treatment 3 (with cancelled residue incorporation and spring harrowing) resulted in a 0.2 t/ha yield increase as compared to the check. Treatment 4 (cancelled spring fertilizer application and harrowing, and decreased from 22-25 cm to 10-15 cm depth of under-winter plowing) demonstrated yield increase of as high as 0.9 t/ha compared to the check. Treatment 5, which included no stubble treatment but only 10-12 cm pre-sowing tilling and treatment with the herbicide 2.4-D at the rate of 1.5 kg/ha in the stage of 4-5 leaves, produced only 0.2-t/ha yield increase as compared to the check. Some reduction of grain yield was observed for Variants 6 and 7, which included weed control by Propazin and Primextra, respectively. Based on the tests results treatment 4 proved to be the most effective in minimum till conditions as per its yield so per the economic efficiency.
Tags from this library: No tags from this library for this title. Log in to add tags.
Star ratings
    Average rating: 0.0 (0 votes)
Holdings
Item type Current library Collection Call number Copy number Status Date due Barcode Item holds
Conference proceedings CIMMYT Knowledge Center: John Woolston Library CIMMYT Publications Collection 633.1147 BED (Browse shelf(Opens below)) 1 Available 5D630072
Total holds: 0

Abstract only

Minimum till is the crop management system enabling preservation of soil natural fertility through reduction of soil dispersion and decrease of soil compaction at cultivation of field crops with minimal labor and material expenses. Such management aims at controlling of the wind erosion of soils. We focused on investigation of the effects of minimum till and herbicide treatment on yield of maize in the environment of Shua Kartli Plain flatlands located in the zone of wind erosion. Laboratory/field tests were performed in 2001-2002 at the institute experimental field with irrigated brown soil. The experiment design included 7 different treatments in 3 replications. The plot area was 140 m2. Wheat was the predecessor crop. Hybrid maize variety Tserovani 1 developed at the genetics department of the institute was used as the study material. During the experiment phenological and biometric observations were made. Herbicides were used to control the identified weeds. The experimental data is shown in the table below. The average grain yield was equal to 10.5 - 12.2 t/ha. Check treatment (#1) included the following: (a) incorporation of wheat residue in soil through scuffling at 10-15 cm after harvest in the fall (b) under-winter plowing at 22-25 cm in the second half of October (c) early spring application of N6oP9oK6o combined with zigzag harrowing and (d) optional pre-sowing cultivation. Deviation of + 1.1 ton/ha from the check was recorded for treatment 2 (the same measures but with cancelled wheat residue incorporation). Treatment 3 (with cancelled residue incorporation and spring harrowing) resulted in a 0.2 t/ha yield increase as compared to the check. Treatment 4 (cancelled spring fertilizer application and harrowing, and decreased from 22-25 cm to 10-15 cm depth of under-winter plowing) demonstrated yield increase of as high as 0.9 t/ha compared to the check. Treatment 5, which included no stubble treatment but only 10-12 cm pre-sowing tilling and treatment with the herbicide 2.4-D at the rate of 1.5 kg/ha in the stage of 4-5 leaves, produced only 0.2-t/ha yield increase as compared to the check. Some reduction of grain yield was observed for Variants 6 and 7, which included weed control by Propazin and Primextra, respectively. Based on the tests results treatment 4 proved to be the most effective in minimum till conditions as per its yield so per the economic efficiency.

English

0409|AGRIS 0401|AL-Maize Program|AL-Wheat Program

Juan Carlos Mendieta

CIMMYT Publications Collection


International Maize and Wheat Improvement Center (CIMMYT) © Copyright 2021.
Carretera México-Veracruz. Km. 45, El Batán, Texcoco, México, C.P. 56237.
If you have any question, please contact us at
CIMMYT-Knowledge-Center@cgiar.org