The Influence of Non-Traditional Fertilizers on Cotton Productivity

Аннотация

The growth and development of cotton are primarily influenced by soil fertility, agrochemical and agrophysical properties, the availability of nutrients, water, and air regimes, as well as plant density and the sum of effective temperatures. Keywords: Mineral fertilizers, glauconite, glaucophos, soil fertility, macroelement. Introduction: Soil fertility, agrochemical and agrophysical properties, nutrient availability, water and air regimes, plant density, and the sum of effective temperatures primarily influence the growth and development of cotton. In the first variant, mineral fertilizers were applied at a rate of N250, P175, and K125 kg/ha. In the second and third variants, glauconite and glaucophos were used without mineral fertilizers at a rate of 900 kg/ha. In the fourth and fifth variants, reduced (by 25%) rates of mineral fertilizers were applied (N180, P130, K90 kg/ha). In the sixth to ninth variants, the NPK rates were 180, 130, and 90 kg/ha, while the glauconite and glaucophos rates were 9020 and 1200 kg/ha, European International Journal of Multidisciplinary Research 47 https://eipublication.com/index.php/eijmrms and Management Studies European International Journal of Multidisciplinary Research and Management Studies respectively. cotton yield of 33.4 c/ha, which is 1.4 c/ha higher than in Variant 1. The data in Table 1 indicate that further In our field experiment, we studied the effects of increasing the glauconite rate to 900 and 1200 kg/ha glauconite and glaucophos compared to the full rate of (Variants 6 and 8) did not lead to higher yields. The yield mineral fertilizers (N250, P175, K125 kg/ha). We remained nearly the same (Variant 8) or even decreased examined these substances without mineral fertilizers (Variant 6) compared to Variant 4. When glaucophos and with a reduced annual mineral fertilizer rate was applied at a rate of 600 kg/ha (Variant 5), the cotton (decreased by 25%) to N185, P130, K90 kg/ha. yield reached 34.9 c/ha, which is 2.9 c/ha higher than in The average cotton yield ranged from 21.9 to 34.9 Variant 1 and 1.5 c/ha higher than in Variant 4. c/ha. When applying mineral fertilizers at a rate of It should be noted that increasing the glaucophos rate N250, P175, K125 kg/ha (Variant 1), the yield was 32.0 to 900 and 1200 kg/ha (Variants 7 and 9) led to a yield c/ha. The application of pure glauconite without reduction of 2.4 c/ha. This indicates that for normal mineral fertilizers at a rate of 900 kg/ha resulted in a growth, development, and increased cotton yield, yield of 21.9 c/ha (Variant 2). This can be explained by applying 600 kg/ha is sufficient. The yield increase of the insufficient macroelement content in glauconite raw cotton when using mineral fertilizers in necessary for plant growth, despite its sufficient combination with glauconite and glaucophos, compared microelement content. Applying glaucophos at a rate to Variant 1 (N250, P175, K125 kg/ha), was 1.4 c/ha in of 900 kg/ha (Variant 3) resulted in a yield of 25.0 c/ha, Variants 4 (600 kg/ha) and 8 (1200 kg/ha) with which is 3.1 c/ha higher than in Variant 2. The presence glauconite. However, in Variant 6 (900 kg/ha), the yield of phosphorus in glaucophos contributes to increased decreased by 0.2 c/ha. In Variants 5, 7, and 9, where yield to some extent. However, the absence of glaucophos was applied at rates of 600, 900, and 1200 nitrogen and potassium in sufficient quantities kg/ha, the yield increases were 2.6 and 0.5 c/ha, negatively affects cotton productivity. The application respectively (Table 2). However, in these variants, of glauconite and glaucophos at 900 kg/ha without mineral fertilizer use was reduced by 25%, while cotton mineral fertilizers did not achieve the same yield level plants were still supplied with essential microelements. as Variant 1, where N250, P175, K125 kg/ha were The extraction of local mineral agro-ores is relatively applied. When glauconite and glaucophos were used in inexpensive. Therefore, from both economic and combination with mineral fertilizers, the annual NPK environmental perspectives, these fertilizers are a rate was reduced by 25%, to N185, P130, K90 kg/ha. viable option for cotton nutrition. The yield in these variants (Variants 4-9) ranged from 31.8 to 34.9 c/ha. Applying glauconite at a rate of 600 kg/ha along with mineral fertilizers resulted in a raw Raw cotton yield depending on the application rate of nutrients Variant Replication Average Deviation,  Number I II III From From From var. 1 var. 2 var. 4 and 5 1 34,2 35,4 26,5 32,0 00 00 2 21,4 25,7 18,5 21,9 -10,1 00 3 26,8 27,8 20,6 25,0 -7,0 00 4 35,0 38,0 27,2 33,4 -1,4 +11,5 00 5 36,5 38,5 29,9 34,9 -0,2 +9,9 -1,6 6 33,8 35,2 26,3 31,8 -0,2 +9,9 -1,6 7 33,4 35,9 23,4 30,5 -0,5 9,0 -2,4 8 35,5 36,0 20,8 30,8 +8,9 +11,5 2,6 9 34,4 32,6 30,6 32,5 +10,6 +7,5 2,4 m = 0,78 c/ha; Least Significant Difference (LSD) = 2,75% 095 Institute, Issue 101. "Weed Plants of Uzbekistan and