Mineral fertilizers and plant growth retardants: Its effects on cottonseed yield; its quality and contents

Zakaria M Sawan,Eugenio Llorens

doi:10.1080/23312025.2018.1459010

Abstract

Cotton is the principal crop of Egyptian agriculture, it is grown mainly for its fiber, but cottonseed products are also of economic importance. Cottonseed is presently the main source of edible oi...

Highlights

The increase in the population in Egypt makes it imperative to explore promising approaches to increase food supply, including protein and oil, to meet the needs of the Egyptian people
Application of nitrogen (N) at the rate of 143 kg ha−1 and two applications of both potassium (K) and (PGR) mepiquat chloride have the most beneficial effects among the treatments examined, affecting the seed quantity and the oil seed quality in comparison with the usual cultural practices adopted by Egyptian cotton procedures
Effect of P, Zn, and Ca on cottonseed, protein and oil yields and oil properties Seed yield ha−1 was significantly increased (11.24%) when phosphorus was applied at the highest rate (Table 3) (Sawan et al, 2001b)

Summary

Introduction

The increase in the population in Egypt makes it imperative to explore promising approaches to increase food supply, including protein and oil, to meet the needs of the Egyptian people. Plant nutrition, using a balanced fertilization program with both macro- and micro-nutrients is becoming necessary in the production of high yield with high quality products, especially with the large variation in soil fertility and the crop’s need for macro- and micro-nutrients. The breeding and production of cotton have traditionally been guided by consideration of fiber quality and yield. Cottonseed characteristics except for viability and vigor have generally been ignored. Cottonseed oil is an important source of fat. Cottonseed meal is classed as a protein supplement in the feed trade and is almost as important as soybean meal (Sawan, Hafez, Basyony, & Alkassas, 2007a)

Methods

Results

Conclusion