Response of Maize Growth to Phosphorus, Foliar Zinc and its Application Stage

Abstract

B alanced fertilizer is an essential component that plays a significant role in improving the crop production and quality (Amjadian et al., 2021). Balanced fertilizer also play an important role plant development and yield formation, the presence of essential nutrients in balanced form is necessary (Hi-Abstract | Phosphorus (P), Zinc (Zn) and its application timing play a very important role in crop productivity. To study its effect on maize, an experiment was conducted at Fodder and Forage Crops Section Harichand, district Charsadda-Pakistan. Two levels of P (90 and 120 kg ha -1 ) and three levels of Zn (0 i.e., water spray only, 2.5 and 5 kg ha -1 ) were applied at three application stages (AS) i.e., full at vegetative stage V6 (AS 1 ), full at reproductive stage R2 (AS 2 ) and ½ at V6 and ½ at R2 stage (AS 3 ) along with an overall control were used in the experiment. Randomized complete block design was used with three replications. Most of the studied parameters were significantly affected by P, Zn and AT. Least days to tasseling (54) and silking (55), leaf areaplant -1 (4180 cm 2 ), leaf area index (2.8), plant height (255 cm) and days to harvest maturity (89 were significantly affected when120 kg P ha -1 was applied. Days to tasseling (53), days to silking (55), leaf areaplant -1 (4400 cm 2 ), leaf area index (3.1), plant height (258.6 cm) and days to harvest maturity (89) were significantly affected in plots treated at the rate of 5 kg ha -1 with Zn. In case of application stages (AS), when Zn was applied 1/2 at vegetative and 1/2 at reproductive growth stages significantly enhanced the plant height (260.8 cm). It can be concluded from the study that increases in the rates of P and Zn improved majority of the studied parameters. Similarly, application of Zn, half at vegetative stage (V6) and half at reproductive stage (R2) improved significantly the phenological parameters of maize crop in the agro climatic condition of the study area.

Response of durum wheat (Triticum aestivum L.) to foliar application of micronutrients in salted and calcareous soil

“…These results are similar to the results mentioned by [14,23] also they reported that thesis and grain filling stage which in turn may result in increased grain yield. This increased grain yield is the direct result of improvement in yield component, grain size and number of grains per spike had positive correlation with grain yield so highest grain yield might be the direct effect of improvement in grain size and number of grains per spike and many reports indicate the positive correlation of foliar spray of micronutrients with grain yield in wheat [1].…”

“…The weight of dry matter is significantly affected (p ≤ 0.05) by the foliar feeding of micronutrients (Table 2.). The foliar application of micronutrients increases the biological yield [23], this may be due to better crop nutrition through foliar application of the applied nutrients which may result in improved crop growth and [1] mention that more than one foliar spray of micronutrients mixture starting at tillering improve the biological yield. The same results were affirmed by another research achieved by [4,14,31].…”

“…However, soil application of micronutrients is therefore not very effective to recover these deficiencies in calcareous and alkaline soils [27]. Foliar spray of these micronutrients has been reported to be 6 -20 time more efficient than the soil application, depending on soil type [23]. Foliar application lead to increase in grain yield components and protein percentage in seed [28,29].…”

Effect of Foliar Application of Boron, Zinc and Manganese on Growth, Yield and Oil Contents of Sunflower (Helianthus annuus L.)

“…) these nutrients improved the effectiveness and efficiency of each other and helped the plants to gain more weigh and produce more outcomes. Ali et al [28] advocated that biological yield was increased with spray of B. Khan et al [29] observed increase in biological yield with application of micronutrients.…”

Diversity in the Rice–Wheat System with Genetically Modified Zinc and Iron-Enriched Varieties to Achieve Nutritional Security

“…The results of this experiment illustrated that the application of Fe and Zn nutrition on wheat and its succeeding effects on rice significantly improved the grain, straw, and biological yield over the treatment that did not receive any Fe and Zn nutrition (Table 1). Fe is an important constituent of chlorophyll pigment, a component of different proteins and enzymes which help in chlorophyll synthesis, enhance the photosynthesis process [57,58], and lead to greater biomass production (Table 1). The application of treatment N 3 recorded the highest yield (grain, straw, and biological) of wheat and rice.…”