Optimization of Sowing Dates and Seeding Rates with Adaptive Control of The Technology of Cultivation of Winter Barley Varieties Mavlono

Zulayho Yarkulova*,Abbos Kadirov

doi:10.35940/ijae.a1501.051121

Abstract

One of the determining periods in the life of winter cereal plants is sowing (autumn). Only under the condition of good moisture supply and at optimal air temperature, timely and high-quality seedlings can be obtained, tillering shoots and processes of verbalization and hardening of plants to be formed. Based on the importance of the foregoing, this work presents the results of studies in bright gray-earth soils of the Kashkadarya region of the reaction of winter barley of the Mavlono variety for different periods of sowing and seed sowing rate. It was found that plant survival ranged from 86.0 to 89.9%. No significant differences in wintering of plants between crops of different sowing dates were revealed. Seeding rates did not significantly affect the height of plants, spike length and the number of grains in it, which confirms the high plasticity of winter wheat of the Mavlono variety. Our studies have shown that for winter barley of the Mavlono variety in the conditions of the Kashkadarya region, the sowing season is favorable – from 15 October to 1 November, with an optimum sowing rate of 4 million pcs / ha.

Highlights

It is possible to increase the efficiency of grain production using the cheapest and most affordable means - a variety
New varieties of winter barley require adjustments of both individual elements of agricultural technology, and cultivation technology in general. This problem is especially relevant in years of insufficient moisture, when sowing dates and seeding rates are of decisive importance to obtain high yields of winter barley
The seeding rate becomes an effective method for the formation of the optimal density of productive stalk and is differentiated depending on the variety type, purpose of crops, sowing time, soil moisture, level of mineral nutrition and predecessor

Summary

Introduction

It is possible to increase the efficiency of grain production using the cheapest and most affordable means - a variety. New varieties of winter barley require adjustments of both individual elements of agricultural technology (timing and methods of sowing, seeding rates, predecessors, quality of seed, etc.), and cultivation technology in general. This problem is especially relevant in years of insufficient moisture, when sowing dates and seeding rates are of decisive importance to obtain high yields of winter barley. To stabilize the production of winter grain crops in the future, it is necessary to revise and determine the optimal sowing time, taking into account changes in the weather during the sowing period until the termination of the autumn vegetation of plants, inclusive.The purpose of the work is to study various techniques of cultivation of winter barley of the Mavlono variety in the conditions of the Kashkadarya region

Objectives

Methods

Results